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Synthesis and structure of 4-methyl-3-nitro-1-nitromethyl-1H-1,2,4- triazolium perchlorate [Text] / A. M. Astachov, A. A. Erashov [et al.] // Energetic materials: characterisation, modelling and validation : Proceedings of the 40th International Annual Conference of ICT. - P104

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Доп.точки доступа:
Astachov, A.M.; Erashov, A.A.; Vasiliev, A.D.; Buka, E.S.; "Energetic materials: characterisation, modelling and validation", International Annual Conference of ICT(40 ; 2009 ; June ; 23-26 ; Karlsruhe, Germany)
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Heteronuclear µ-vinylidene complexes containing Re, Cu, Fe, Pt, Pd. Synthesis, structure, IR and NMR spectra [Text] / A. B. Antonova, O. S. Chudin [et al.] // Carbene Chemistry Conference The Ocean Maya. - P. 38

Доп.точки доступа:
Antonova, A.B.; Chudin, O.S.; Rubaylo, A.I.; Pavlenko, N.I.; Sokolenko, W.A.; Verpekin, V.V.; Vasiliev, A.D.; Semeikin, O.V.; Carbene Chemistry Conference The Ocean Maya(2009 ; FEB ; 18-21 ; Playa del Carmen , Mexico)
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Chemical synthesis, crystal structure and electronic parameters of noncentrosymmetric K3WO3F3 [Text] / A. A. Atuchin, V. G. Kesler [et al.] // Proceedings of 4 International forum on strategic technologies (IFOST 2009). - Vol. 3. - P213-215

Доп.точки доступа:
Atuchin, A.A.; Kesler, V.G.; Gavrilova, T.A.; Molokeev, M. S.; Aleksandrov, K. S.; International forum on strategic technologies(4 ; 2009 ; Oct . ; 21-23 ; Ho Chi Minh City, Vietnam)
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Synthesis and magnetic property feature of La0.7Sr0.3MnO3 manganite polycrystalline / Patrin G.S., Polyakova K.P., Patrusheva T.N., Velikanov D.A., Volkov N.V., Balaev D.A., Patrin K.G., Klabukov A.A. // III Байкальская международная конференция, Иркутск, 2008, C. 79

Доп.точки доступа:
Patrin, G. S.; Патрин, Геннадий Семёнович; Polyakova, K. P.; Полякова, Клавдия Павловна; Patrusheva, T. N.; Патрушева, Тамара Николаевна; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Volkov, N. V.; Волков, Никита Валентинович; Balaev, D. A.; Балаев, Дмитрий Александрович; Patrin, K. G.; Патрин, Константин Геннадьевич; Klabukov, A. A.
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Invar effect and solid-state synthesis in Ni/Fe(001)/MgO(001) thin films: structural and magnetic studies / V. G. Myagkov, V. C. Zhigalov, L. E. Bykova, G. N. Bondarenko // Байкальская международная конференция”Магнитные материалы: Новые технологии”, Россия, Иркутск, 2008, С.56

Доп.точки доступа:
Myagkov, V. G.; Мягков, Виктор Григорьевич; Zhigalov, V. S.; Жигалов, Виктор Степанович; Bykova, L. E.; Быкова, Людмила Евгеньевна; Bondarenko, G. N.; Бондаренко, Галина Николаевна
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Features of the melt–solution synthesis of the TbCr3(BO3)4 single crystals / I. A. Gudim, N. V. Mikhashenok, A. D. Vasiliev [et al.] // J. Cryst. Growth. - 2024. - Vol. 637-638. - Ст. 127716, DOI 10.1016/j.jcrysgro.2024.127716. - Cited References: 22. - The authors thank A.V. Zamkov for assistance in preparing the samples for the conoscopic study. The characterization and examination of the samples were performed at the Center for Collective Use, Krasnoyarsk Scientific Center, Siberian Branch of the Russian Academy of Sciences. - This study was supported in part by the Russian Science Foundation and the Krasnoyarsk Territorial Foundation for Support of Scientific and R&D Activity, project no. 22-12-20019 . - ISSN 0022-0248. - ISSN 1873-5002
Кл.слова (ненормированные):
Growth from melt-solution -- Single crystal growth -- Cromium borates -- Rare-earth compounds -- Oxides -- Magnetic materials
Аннотация: The phase formation of terbium chromoborate TbCr3(BO3)4 in the bismuth trimolybdate and lithium tungstate melt–solutions has been studied. The absence of the terbium chromoborate trigonal phase in the bismuth trimolybdate-based system at all component ratios has been shown. The component ratio in the lithium tungstate-based system has been found at which the TbCr3(BO3)4 trigonal crystals are formed at temperatures above 1100 °C; below this temperature, the monoclinic phase dominates. The structural and magnetic properties of the grown crystals have been studied. It has been established that the trigonal and monoclinic TbCr3(BO3)4 crystals synthesized from the lithium tungstate-based solvent exhibit identical magnetic properties. At the same time, a significant difference of the magnetic properties of the single crystals synthesized from the bismuth molybdate melt–solution has been observed. This difference has been attributed to the effect of Bi3+ ions that partially replace Tb3+ ions.

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Держатели документа:
Kirensky Institute of Physics, Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk 660036 Russia

Доп.точки доступа:
Gudim, I. A.; Гудим, Ирина Анатольевна; Mikhashenok, N. V.; Михашенок, Наталья Владимировна; Vasiliev, A. D.; Васильев, Александр Дмитриевич; Melnikova, S. V.; Мельникова, Светлана Владимировна; Pavlovskii, M. S.; Павловский, Максим Сергеевич; Skorobogatov, S. A.; Скоробогатов, Станислав Алексеевич; Pankrats, A. I.; Панкрац, Анатолий Иванович
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Synthesis and study of superhigh-concentrated organosols of silver nanoparticles / S. A. Vorobyev, M. Yu. Flerko, S. A. Novikova [et al.] // Colloid J. - 2024. - Vol. 86, Is. 2. - P. 208-217, DOI 10.1134/S1061933X23601294. - Cited References: 33. - The work was carried out with the financial support of the basic project FWES-2021-0014 of the Institute of Chemistry and Chemical Technology, Siberian Branch, Russian Academy of Sciences, and the Federal Program "Priority 2030" using the equipment of the Krasnoyarsk regional center for collective use of the Federal Research Center Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences . - ISSN 1061-933X. - ISSN 1608-3067
Кл.слова (ненормированные):
silver nanoparticles (NPs) -- concentrated silver organosols -- phase transfer of nanoparticles -- X-ray photoelectron spectroscopy (XPS) -- transmission electron microscopy (TEM) -- conductive silver films
Аннотация: Due to their unique properties, organosols of silver nanoparticles are widely used in optical and semiconductor devices, to produce electrically and thermally conductive films, as catalysts, antibacterial materials, etc. This work proposes a simple and highly productive method for the preparation of silver organosols, which have a metal concentration as high as 1800 g/L and contain spherical nanoparticles with low polydispersity and a median size of 9.1 nm. The method consists in the initial preparation of silver nanoparticle hydrosols with a concentration of higher than 30 g/L followed by the transfer of the NPs into an organic phase of o-xylene. A set of physical research methods has been employed to study the regularities of the extraction of silver nanoparticles with o-xylene in the presence of cetyltrimethylammonium bromide (CTAB) and ethanol and to determine the optimal process conditions, under which the extraction degree is as high as 62.5%. It has been found that bromine anions contained in CTAB molecules cause the aggregation of some amount of silver nanoparticles with the formation of silver metal sediment in the aqueous phase. According to X-ray photoelectron spectroscopy data, the sediment contains bromide ions (up to 4 at %) on the particle surface. Organosols synthesized under optimal conditions are stable for more than 7 months and withstand repeated cycles of drying and redispersing. Silver organosols have been used to obtain metal films with an electrical conductivity of about 68 500 S/cm, which increases to 412 000 and 509 500 S/cm (87.8% of the electrical conductivity of bulk silver) after thermal treatment at 150 and 250°C, respectively.

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Держатели документа:
Institute of Chemistry and Chemical Technology, Siberian Branch, Russian Academy of Sciences, 660036, Krasnoyarsk, Russia
Siberian Federal University, 660041, Krasnoyarsk, Russia
Kirenskii Institute of Physics, Siberian Branch, Russian Academy of Sciences, 660036, Krasnoyarsk, Russia
Tomsk National Research State University, 634050, Tomsk, Russia

Доп.точки доступа:
Vorobyev, S. A.; Flerko, M. Yu.; Novikova, S. A.; Mazurova, E. V.; Tomashevich, Ye. V.; Likhatski, M. N.; Saikova, S. V.; Samoilo, A. S.; Zolotovsky, N. A.; Золотовский, Н. А.; Volochaev, M. N.; Волочаев, Михаил Николаевич
}
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    Получение и активация TiO2 фотонно- кристаллических структур для повышения эффективности реакции фотоэлектрохимического разложения воды / Т. А. Кенова, Н. А. Зосько, М. В. Пятнов [и др.] // Журн. СФУ. Химия. - 2024. - Т. 17, № 1. - С. 27-38 ; J. Sib. Fed. Univ. Chem. - Библиогр.: 25. - Исследование выполнено за счет гранта Российского научного фонда и Красноярского краевого фонда поддержки научной и научно-технической деятельности № 22-22-20078, https://rscf.ru/project/22-22-20078/ с использованием оборудования Красноярского регионального центра коллективного пользования ФИЦ КНЦ СО РАН . - ISSN 1998-2836. - ISSN 2313-6049
   Перевод заглавия: Synthesis and activation of TiO2 photonic crystal structures for enhanced photoelectrochemical water splitting
Кл.слова (ненормированные):
фотонно-кристаллические TiO2 наноструктуры -- активация TiO2 фотонных кристаллов -- фотоэлектрохимическая активность -- разложение воды -- photonic-crystal TiO2 nanostructures -- TiO2 photonic crystals activation -- photoelectrochemical activity -- water splitting
Аннотация: Наноструктурированные фотонно-кристаллические пленки TiO2 анодно синтезированы при импульсном и ступенчатом изменениях напряжения. Полученные фотонные структуры активированы методом циклической вольтамперометрии в 0,5M Na2SO4. Фотоэлектрохимическая активность электродов исследована в реакции разложения воды в области длин волн 360–700 нм. Активация приводит к изменению энергии запрещенной зоны, красному сдвигу спектра IPCE и увеличению его значений в исследованном диапазоне длин волн.
TiO2 photonic crystal nanostructure films are anodic synthesized with pulsed and stepwise voltage changes. The obtained photonic structures were activated by cyclic voltammetry in 0.5M Na2SO4. The photoelectrochemical activity of the electrodes was studied in the water splitting reaction in the wavelength range 360–700 nm. Activation leads to a change in the band gap energy, a red shift in the IPCE spectrum and an increase in its values in the studied wavelength range.

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Держатели документа:
Институт химии и химической технологии СО РАН ФИЦ "Красноярский научный центр СО РАН", Российская Федерация, Красноярск
Институт физики им. Л.В. Киренского СО РАН ФИЦ "Красноярский научный центр СО РАН", Российская Федерация, Красноярск
Сибирский федеральный университет, Российская Федерация, Красноярск

Доп.точки доступа:
Кенова, Т. А.; Зосько, Н. А.; Пятнов, Максим Владимирович; Pyatnov, M. V.; Александровский, Александр Сергеевич; Aleksandrovsky, A. S.; Максимов, Н. Г.; Жижаев, А. М.; Таран, О. П.

}
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    Elucidating elusive quaternary selenide EuCeCuSe3: Synthesis, crystal structure, properties and theoretical studies / M. V. Grigoriev, A. V. Ruseikina, M. S. Molokeev [et al.] // J. Rare Earths. - 2024. - Vol. 42, Is. 1. - P. 163-171, DOI 10.1016/j.jre.2022.11.004. - Cited References: 47 . - ISSN 1002-0721. - ISSN 2509-4963
   Перевод заглавия: Расшифровка труднодоступного четвертичного селенида EuCeCuSe3: синтез, кристаллическая структура, свойства и теоретические исследования
Кл.слова (ненормированные):
Quaternary selenide -- Synthesis -- Crystal structure -- Ab initio calculations -- Magnetic measurements -- Spectroscopy
Аннотация: We report on the novel heterometallic quaternary selenide EuCeCuSe3, the fabrication of which has been a challenge until this work. The structure of the reported selenide was elucidated from the powder X-ray diffraction data, which revealed the formation of EuCeCuSe3 with excellent yield (96.7%) accompanied with a minor fraction of CeSe2 (3.3%), and was best solved in orthorhombic space group Pnma with the BaLaCuS3 structural type. Thus, the crystal structure of the title compound completes the row of the heterometallic quaternary selenides EuRECuSe3 (RE = La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Y), of which the cerium-based derivative exclusively belongs to the BaLaCuS3 structural type. The distortion of the CuSe4 polyhedron was compared for the whole series of EuRECuSe3 compounds using the τ4-descriptor for four coordinated ions, which revealed the highest degree of distortion for the Ce3+-containing selenide, followed by the La3+-based derivative. Furthermore, the crystallographic and geometrical parameters of the reported selenide were discussed in comparison to the Ce3+-based sulfides SrCeCuS3 and EuCeCuS3. Ab initio calculations of the crystal structure, a phonon spectrum and elastic constants for the crystal of EuСeCuSe3 were also performed. The types and wavenumbers of fundamental modes were determined and the involvement of ions participating in the phonon modes was assessed. The experimental IR spectrum of the reported selenide was interpreted and found to be in agreement with the calculated spectrum. The experimental direct band gap of EuCeCuSe3 was measured to be 1.36 eV that is consistent with the concept of its origin due to interband transitions between orbitals emerging mainly from 4f (valence band) and 5d (conduction band) levels of the Eu2+ cation. The dependence of the Young's modulus on the direction demonstrates the anisotropy of the elastic properties, while the Vickers hardness for EuCeCuSe3 was calculated to be 5.2 GPa. Finally, the title compound is paramagnetic above 4 K.

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Держатели документа:
Laboratory of Theory and Optimization of Chemical and Technological Processes, University of Tyumen, Volodarskogo Str. 6, 625003, Tyumen, Russian Federation
Research and Development Department, Kemerovo State University, Krasnaya Str. 6, 650000, Kemerovo, Russian Federation
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Akademgorodok 50 Bld. 38, 660036, Krasnoyarsk, Russian Federation
Department of Physics, Far Eastern State Transport University, Serysheva Str. 47, 680021, Krasnoyarsk, Russian Federation
Institute of Natural Sciences and Mathematics, Ural Federal University Named After the First President of Russia B.N. Yeltsin, Mira Str. 19, 620002, Ekaterinburg, Russian Federation
Department of Photonics and Laser Technology, Siberian Federal University, Svobodnii Ave. 79, 660079, Krasnoyarsk, Russian Federation
Institute of Physics and Technology, University of Tyumen, Volodarskogo Str. 6, 625003 Tyumen, Russian Federation
Institute for Inorganic Chemistry, University of Stuttgart, Pfaffenwaldring 55, D-70569, Stuttgart, Germany
Advanced Materials for Industry and Biomedicine Laboratory, Kurgan State University, Sovetskaya Str. 63/4, 640020, Kurgan, Russian Federation
Innovation Center for Chemical and Pharmaceutical Technologies, Ural Federal University Named After the First President of Russia B.N. Yeltsin, Mira Str. 19, 620002, Ekaterinburg, Russian Federation
University of Tyumen, Volodarskogo Str. 6, 625003, Tyumen, Russian Federation

Доп.точки доступа:
Grigoriev, Maxim V.; Ruseikina, Anna V.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Chernyshev, Vladimir А.; Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Krylov, A. S.; Крылов, Александр Сергеевич; Krylova, S. N.; Крылова, Светлана Николаевна; Shestakov, N. P.; Шестаков, Николай Петрович; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Garmonov, Alexander A.; Matigorov, Alexey V.; Ostapchuk, Evgeny A.; Schleid, Thomas; Safin, Damir A.
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10.

Synthesis of Ni nanoclusters supported on diamond by plasma technique and their electrochemical properties / N. S. Nikolaev, V. G. Isakova, N. G. Vnukova [et al.] // Diam. Relat. Mater. - 2024. - Vol. 142. - Ст. 110844, DOI 10.1016/j.diamond.2024.110844. - Cited References: 35 . - ISSN 0925-9635. - ISSN 1879-0062
Кл.слова (ненормированные):
High pressure – high temperature (HTHP) diamond -- Nickel plasma -- Cyclic voltammetric -- Electrocatalytic activity -- Methanol -- Paracetamol
Аннотация: In this study, particles of synthetic undoped diamond (DN) obtained via the high pressure – high temperature method were coated with a nickel shell using metallic nickel plasma in a two-jet plasma generator with gas vortex and magnetic flux stabilization. Through the use of scanning electron microscopy, transmission electron microscopy, and X-ray photoelectron spectroscopy, we observed the formation of a nickel diamond composite with a core-shell structure, where DN serves as the core and Ni nanoclusters form the shell (DN@Ni). The results of voltammetric analysis indicated that DN@Ni, when deposited on a graphite electrode, exhibited significant electrocatalytic activity in the oxidation of methanol and paracetamol in an alkaline electrolyte.

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Держатели документа:
Kirensky Institute of Physics, FSBSI "Federal Research Center "Krasnoyarsk Science Center SB RAS", Akademgorodok 50/38, Krasnoyarsk 660036, Russia
Institute of Engineering Physics and Radio Electronics, Siberian Federal University, Academician Kirensky str., 28, Krasnoyarsk 660074, Russia
Institute of Chemistry and Chemical Technology of the Siberian Branch of the Russian Academy of Sciences, FSBSI "Federal Research Center "Krasnoyarsk Science Center SB RAS", Akademgorodok 50/24, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Nikolaev, N. S.; Николаев, Никита Сергеевич; Isakova, V. G.; Исакова, Виктория Гавриловна; Vnukova, N. G.; Внукова, Наталья Григорьевна; Elesina, V. I.; Елесина, Виктория Игоревна; Glushenko, G. A.; Глущенко, Гарий Анатольевич; Tomashevich, Y. V.; Томашевич, Евгений Владимирович; Churilov, G. N.; Чурилов, Григорий Николаевич
}
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11.

    Synthesis and properties of the NdSF compound, phase diagram of the NdF3–Nd2S3 system / V. M. Grigorchenko, M. S. Molokeev, A. S. Oreshonkov [et al.] // J. Solid State Chem. - 2024. - Vol. 333. - Ст. 124640, DOI 10.1016/j.jssc.2024.124640. - Cited References: 48. - This research was funded by the Tyumen Oblast Government as part of the West-Siberian Interregional Science and Education Center’s project No. 89-DON (3). - The studies ab initio simulation of electron band structure, analysis of optical properties, XRD analysis was partially supported by "Priority-2030" program for the Siberian Federal University, and the state assignment of Kirensky Institute of Physics . - ISSN 0022-4596. - ISSN 1095-726X
   Перевод заглавия: Синтез и свойства соединения NdSF, фазовая диаграмма системы NdF3–Nd2S3
Кл.слова (ненормированные):
Neodymium fluorosulfide -- Phase diagram -- Optical band gap -- Microhardness
Аннотация: The NdF3–Nd2S3 system attracts attention of researchers due to the possibility of using LnSF compounds (Ln = rare earth element) as possible new p- and n-type materials. The samples of this system were synthesized from NdF3 and Nd2S3. The NdSF compound belongs to the PbFCl structural type, P4/nmm space group, unit cell parameters: a = 3.9331(20) Å, c = 6.9081(38) Å. The experimentally determined direct and indirect NdSF bandgaps are equal to 2.68 eV and 2.24 eV. The electronic band structure was calculated via DFT simulation. The NdSF compound melts congruently at T = 1385 ± 10°С, ΔНm = 40.5 ± 10 kJ/mol, ΔS = 24.4 ± 10 J/mol. The NdSF microhardness is 455 ± 10 HV. Five phase transformations in the NdF3–Nd2S3 system were recorded by DSC; their balance equations were derived. The liquidus of the system calculated from the Redlich–Kister equation is fully consistent with the DSC data.

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Держатели документа:
Tyumen State University, Tyumen, Volodarsky str. 6, 625003, Russia
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Akademgorodok str. 50, Building 38, 660036, Russia
Siberian Federal University, Krasnoyarsk, Svobodnyj av. 79, 660079, Russia
Department of Physical and Applied Chemistry, Kurgan State University, Sovetskaya str. 63/4, Kurgan, 640020, Russia
Institute of Solid State Chemistry, Ural Branch, Russian Academy of Sciences, Yekaterinburg, Pervomaiskaya str. 91, 620990, Russia
Saint-Petersburg State University, 7/9 Universitetskaya Emb., 199034, St. Petersburg, Russia

Доп.точки доступа:
Grigorchenko, V.M.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Oreshonkov, A. S.; Орешонков, Александр Сергеевич; Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Kertman, A.V.; Abulkhaev, M.U.; Mereshchenko, A.S.; Yurev, I.O.; Shulaev, N.А.; Kamaev, D.N.; Elyshev, A.V.; Andreev, O.V.
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12.

    Solid state synthesis, structural, DFT and spectroscopic analysis of EuAl3(BO3)4 / A. S. Oreshonkov, A. S. Aleksandrovsky, O. D. Chimitova [et al.] // Mater. Chem. Phys. - 2024. - Vol. 320. - Ст. 129400, DOI 10.1016/j.matchemphys.2024.129400. - Cited References: 55. - The work was carried out within the state assignment No FWES-2024-0003 of Kirensky Institute of Physics. This work was partially supported by the state order of BINM SB RAS (0273-2021-0008). The samples for this research were synthesized using equipment of the CCU BINM SB RAS. The reflectance spectrum was obtained at the Center for Optical and Laser Materials Research of Research park of St. Petersburg State University. The SEM measurements were performed at Krasnoyarsk Regional Center of Research Equipment of Federal Research Center "Krasnoyarsk Science Center SB RAS" . - ISSN 0254-0584. - ISSN 1879-3312
   Перевод заглавия: Твердофазный синтез, структурный, квантово-химический (DFT) и спектроскопический анализ EuAl3(BO3)4
Кл.слова (ненормированные):
EuAl(BO) -- Huntite -- X-ray diffraction -- SEM -- DFT -- Charge transfer -- Raman -- Infrared -- Luminescence
Аннотация: Huntite-like borates are versatile and promising materials with wide range of applications in frequency conversion, UV light generation, lighting, displays, quantum information storage, and more, demonstrated by their various properties and uses in scientific research. In this work, EuAl3(BO3)4 powder was prepared through multi-stage solid-state reaction method using high-purity starting reagents: Eu2O3, Al2O3 and H3BO3, considering a 20 wt% excess of H3BO3 to compensate for B2O3 volatilization. Obtained samples undergo several treatments at varying temperatures and their phase purity is subsequently verified through powder X-ray diffraction analysis. The scanning electron microscopy reveals that resulting EuAl3(BO3)4 powder consists of granules exhibiting irregular morphologies with dimensions of 0.5–8 μm. The electronic band structure of EuAl3(BO3)4, calculated using the GGA PBE method, reveals f-states of Eu near 4 eV. These states do not produce emphasized peaks on simulated absorbance spectra. Using of DFT + U for the f-states of Eu pushed up f-bands above 6 eV and the charge transfer from p-O to d-Eu was obtained (Egdirect = 5.63 eV, Egindirect = 5.37 eV using Ueff = 4 eV). The variation of Ueff has a weak influence on the position of the bottom of the conduction band. The experimental bandgaps of EuAl3(BO3)4 crystalline powder, both direct and indirect, are found to be 3.96 and 3.67 eV, correspondingly. These values are lower than theoretical values what is associated with limitations of DFT calculations involving f electrons. The Raman spectrum of EuAl3(BO3)4 powder is discussed, detailing the contributions of different ions to specific spectral bands. Investigation of high-resolution luminescence spectra shows the possibility to estimate the content of defects by the testing the violation of the prohibition of ultranarrow 5D0 → 7F0 line that is forbidden in the ideal crystalline structure of trigonal EuAl3(BO3)4.

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Держатели документа:
Laboratory of Molecular Spectroscopy, Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russia
School of Engineering and Construction, Siberian Federal University, Krasnoyarsk, 660041, Russia
Laboratory of Coherent Optics, Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russia
Institute of Nanotechnology, Spectroscopy and Quantum Chemistry, Siberian Federal University, Krasnoyarsk, 660041, Russia
Laboratory of Oxide Systems, Baikal Institute of Nature Management, SB RAS, Ulan-Ude, 670047, Russia
Center for Optical and Laser Materials Research, Saint-Petersburg State University, Saint-Petersburg, 199034, Russia
Emanuel Institute of Biochemical Physics of Russian Academy of Sciences, Moscow, 119334, Russia
Plekhanov Russian University of Economics, Moscow, 117997, Russia
Moscow Institute of Physics and Technology, Dolgoprudny, 141700, Russia
Laboratory of Crystal Physics, Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russia
School of Engineering Physics and Radio Electronics, Siberian Federal University, Krasnoyarsk, 660041, Russia
Institute of Automation and Electrometry, Russian Academy of Sciences, Novosibirsk, 630090, Russia
Department of Molecular Electronics, Federal Research Center Krasnoyarsk Science Center of the Siberian Branch of the Russian Academy of Sciences, Krasnoyarsk, 660036, Russia
Institute of Fundamental Biology and Biotechnology, Siberian Federal University, Krasnoyarsk, 660041, Russia

Доп.точки доступа:
Oreshonkov, A. S.; Орешонков, Александр Сергеевич; Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Chimitova, O.D.; Pankin, D.V.; Popov, Z.I.; Sukhanova, E.V.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Adichtchev, S.V.; Pugachev, A.M.; Nemtsev, I. V.; Немцев, Иван Васильевич
}
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13.

    Синтез и устойчивость фаз Раддлесдена-Поппера (Sr0.8Ln0.2)3Со2O7-δ (Ln=Sm, Gd, Dy) / С. Н. Верещагин, В. А. Дудников, В. А. Наслузов, Л. А. Соловьев // Журн. СФУ. Химия. - 2024. - Т. 17, № 2. - С. 279-288 ; J. Sib. Fed. Univ. Chem. - Библиогр.: 29. - Работа выполнена в рамках государственного задания Института химии и химической технологии СО РАН (проект FWES 2021-0013). Синтез образцов выполнен в рамках научной тематики Госзадания Института физики СО РАН . - ISSN 1998-2836. - ISSN 2313-6049
   Перевод заглавия: Synthesis and stability of Ruddlesden-Popper phases (Sr0.8Ln0.2)3Co2O7-δ (Ln=Sm, Gd, Dy)
Кл.слова (ненормированные):
перовскит -- фазы Раддлесдена-Поппера -- кобальтит -- оксиды редкоземельных элементов -- perovskite -- Ruddlesden-Popper phases -- cobaltite -- rare earth oxides
Аннотация: В работе приведены результаты квантово-химического расчета стабильности фазы Раддлесдена-Поппера (Sr1-хGdx)3Со2O7-δ (RP2) в зависимости от распределения катионов Gd3+/Sr2+ и наличия кислородных вакансий. Показано, что при х˂0.208 как катионы Gd3+, так и кислородные вакансии локализуются в перовскитном слое, что приводит к стабилизации структуры. На примере стронций-редкоземельного кобальтита состава (Sr0.8Ln0.2)3Со2O7-δ (Ln=Sm, Gd, Dy) экспериментально продемонстрирована возможность получения отсутствующих на фазовых диаграммах метастабильных фаз RP2.
The paper presents the results of a quantum chemical calculation of the stability of the Ruddlesden-Popper phase (Sr1-xGdx)3Co2O7-δ (RP2) depending on the distribution of Gd3+/Sr2+ cations and the presence of oxygen vacancies. It has been shown that at x˂0.208 both Gd3+ cations and oxygen vacancies are localized in the perovskite layer, which leads to structure stabilization. New metastable RP2 phases of strontium-rare earth cobaltites with (Sr0.8Ln0.2)3Co2O7-δ composition (Ln=Sm, Gd, Dy) were synthesized and characterized, these phases being absent from the phase diagrams in air.

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Институт химии и химической технологии CO РАН, ФИЦ "Красноярский научный центр СО РАН", Российская Федерация, Красноярск
Институт физики им. Л.В. Киренского, ФИЦ "Красноярский научный центр СО РАН", Российская Федерация, Красноярск

Доп.точки доступа:
Верещагин, С. Н.; Дудников, Вячеслав Анатольевич; Dudnikov, V. A.; Наслузов, В. А.; Соловьев, Л. А.

}
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14.

    Раствор-расплавный синтез Mn-содержащих оксиборатов со структурами людвигита и гаудефройита / Е. М. Мошкина, М. С. Молокеев, Е. В. Еремин, Кох Д. // Новое в магнетизме и магнитных материалах : сборник трудов XXV международной конференции / прогр. ком.: Р. С. Исхаков, С. Г. Овчинников [и др.]. - 2024. - Секция 1 [Сборник 1] : Новые магнитные и родственные им материалы: синтез и физические свойства. Преподавание по разделам «Магнетизм» и «Магнитные материалы» в высшей школе. - С. 181-184. - Библиогр.: 7. - РФН № 22-12-20019, Красноярский краевой фонд науки . - ISBN 978-5-4465-1869-2
   Перевод заглавия: Flux synthesis of Mn-contained oxyborates with ludwigite and gaudefroyite structure
Аннотация: Исследуются особенности синтеза Mn-содержащих оксиборатов со структурами людвигита и гаудефройита из многокомпонентных растворов-расплавов на основе Bi2O3-MoO3-B2O3, разбавленных Na2CO3. Анализируются закономерности фазообразования и механизмы изменения валентности катионов марганца в зависимости от состава растворителя. Представлена структурная и магнитная характеризация полученных соединений.

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Держатели документа:
Институт физики им. Л.В. Киренского Сибирского отделения Российской академии наук - обособленное подразделение ФИЦ КНЦ СО РАН
Федеральный исследовательский центр КНЦ СО РАН

Доп.точки доступа:
Исхаков, Рауф Садыкович \прогр. ком.\; Iskhakov, R. S.; Овчинников, Сергей Геннадьевич \прогр. ком.\; Ovchinnikov, S. G.; Мошкина, Евгения Михайловна; Moshkina, E. M.; Молокеев, Максим Сергеевич; Molokeev, M. S.; Еремин, Евгений Владимирович; Eremin, E. V.; Кох Д.; "Новое в магнетизме и магнитных материалах", международная конференция(25 ; 2024 ; 1-6 июля ; Москва); Научный совет по физике конденсированных сред РАН; МИРЭА - Российский технологический университет; Московский государственный университет им. М.В. Ломоносова; Магнитное общество России
}
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15.

Synthesis of anhydrous lanthanum acetate. Analysis of it’s structural, thermal and electronic properties / A. S. Oreshonkov, N. O. Azarapin, A. P. Tyutyunnik [et al.] // Inorg. Chim. Acta. - 2024. - Vol. 572. - Ст. 122310, DOI 10.1016/j.ica.2024.122310. - Cited References: 47. - The work was partially carried out using the resources of the Research Resource Center “Natural Resources Management and Physico-Chemical Research” (Tyumen University) with financial support from the Ministry of Science and Higher Education of the Russian Federation (contract No. 05.594.21.0019., Unique identification number RFMEFI59420X0019). DFT calculations were carried out within the state assignment No FWES-2024-0003 of Kirensky Institute of Physics. The XRD work was carried out in accordance with the state assignment for the Institute of Solid State Chemistry of the Ural Branch of the Russian Academy of Sciences (No. 124020600024-5). The resources of the Research Park Computing Center and Center for Optical and Laser Materials Research of Saint-Petersburg State University were used . - ISSN 0020-1693. - ISSN 1873-3255
Кл.слова (ненормированные):
Anhydrous acetate -- Rare-earth -- Electronic structure -- Optical properties -- Deep UV
Аннотация: Acetate complexes of rare earth elements are extensively studied compounds known for their diverse properties and potential applications and lanthanum acetate hydrate is commercially available. In this work, a powdered anhydrous lanthanum acetate (La(CH3COO)3) sample was prepared by dissolving lanthanum oxide (La2O3) in an excess of acetic acid (CH3COOH) and distilled water (H2O), followed by direct evaporation at 150 °C. The decomposition of La(CH3COO)3 was studied, showing initiation around 300 °C and conclusion at ?700 °C, with four distinct thermal events (I–IV) of mass loss. Gas phase identification revealed acetone and carbon dioxide as decomposition products, indicating pyrolytic decarboxylation. The final thermal effect (IV) is linked to the decomposition of La2O2CO3 to La2O3. The DFT refinement of atomic coordinates of hydrogen atoms, which were unavailable from experiment, was successfully performed. Obtained structural data was checked using vibrational spectroscopy method. The calculated electronic band structure of La(CH3COO)3 indicates it as an indirect wide band gap material with values of direct transition close to indirect. The optical bandgap is found to be 5.49 eV, suggesting that the charge transfer in La(CH3COO)3 can be optically activated with wavelengths shorter than 226 nm, which falls within the deep UV (DUV) region.

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Держатели документа:
Laboratory of Molecular Spectroscopy, Kirensky Institute of Physics, Federal Research Center KSC SB RAS, 660036 Krasnoyarsk, Russia
School of Engineering and Construction, Siberian Federal University, 660041 Krasnoyarsk, Russia
Department of Inorganic and Physical Chemistry, Tyumen State University, Tyumen 625003, Russia
Institute of Solid State Chemistry UB RAS, Yekaterinburg, Russia
Center for Optical and Laser Materials Research, Saint-Petersburg State University, Saint-Petersburg 199034, Russia

Доп.точки доступа:
Oreshonkov, A. S.; Орешонков, Александр Сергеевич; Azarapin, N.O.; Tyutyunnik, A.P.; Pankin, D.V.; Razumkova, I.A.
}
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16.

Relationship between the composition and structural characteristics of catalysts based on calcium ferrites and their activity with respect to hydrogen / N. P. Kirik, V. V. Yumashev, O. A. Bayukov [et al.] // Russ. J. Gen. Chem. - 2024. - Vol. 94, Is. 6. - P. 1309-1321, DOI 10.1134/S1070363224060094. - Cited References: 38. - The study was carried out within the framework of the State Assignment of the Institute of Chemistry and Chemical Technology, Federal Krasnoyarsk Research Center, Siberian Branch, Russian Academy of Sciences (project no. FWES–2021–0013) . - ISSN 1070-3632. - ISSN 1608-3350
Кл.слова (ненормированные):
calcium ferrites -- solid-state synthesis -- X-ray diffraction -- Mossbauer spectroscopy -- TPR-H2
Аннотация: Using the methods of X-ray diffraction, Mössbauer spectroscopy, and temperature-programmed reduction with hydrogen, the relationship between the phase composition, structural characteristics of the phases, and the reactivity with respect to hydrogen was investigated for calcium ferrites-based catalysts. The catalyst samples were prepared via solid-state synthesis from CaO and Fe2O3 at 900 and 1000°C by varying the Fe2O3 content in the CaO–Fe2O3 system. The phase composition of the resultant samples corresponds to the CaO‒Ca2Fe2O5, Ca2Fe2O5‒CaFe2O4, and CaFe2O4‒α-Fe2O3 regions. In the CaO–Ca2Fe2O5 samples the lattice parameters of Ca2Fe2O5 and its activity with respect to hydrogen depend on the phase ratio. The activity of CaFe2O4 is higher in Ca2Fe2O5‒CaFe2O4 compared to CaFe2O4‒α-Fe2O3 catalysts.

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Держатели документа:
Institute of Chemistry and Chemical Technology, Federal Krasnoyarsk Research Center, Siberian Branch, Russian Academy of Sciences, 660036, Krasnoyarsk, Russia
Kirensky Institute of Physics, Federal Krasnoyarsk Research Center, Siberian Branch, Russian Academy of Sciences, 660036, Krasnoyarsk, Russia

Доп.точки доступа:
Kirik, N. P.; Yumashev, V. V.; Bayukov, O. A.; Баюков, Олег Артемьевич; Knyazev, Yu. V.; Князев, Юрий Владимирович; Solovyev, L. A.; Shishkina, N. N.; Rabchevskii, E. V.; Anshits, A. G.
}
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17.

Synthesis and magnetic properties of Fe1.1Ga0.9O3, measured according to eLectron spin resonance / I. V. Yatsyk, R. M. Eremina, E. M. Moshkina [et al.] // Bull. Russ. Acad. Sci.: Phys. - 2024. - Vol. 88, Is. 7. - P. 1140-1147, DOI 10.1134/S1062873824707220. - Cited References: 27. - The authors express their gratitude to the Institute of Geology and Oil & Gas Technologies of Kazan (Privolzhskii) Federal University for allowing our investigations with X-ray fluorescence analysis. - This work was supported by the Russian Science Foundation, grant no. 22-12-20019 (https://rscf.ru/project/22-12-20019/), and the Krasnoyarsk Regional Science Foundation. The work of I.V. Yatsyk and R.M. Eremina was performed with the financial support from the government assignment for Federal Research Center "Kazan Scientific Center", Russian Academy of Sciences . - ISSN 1062-8738. - ISSN 1934-9432
Аннотация: The authors study the formation of crystals of Fe-Ga oxides and Fe–Ga–Cu borates in a multicomponent flux system based on Bi2Mo3O12–Na2B4O7. The Curie–Weiss temperature (ΘCW = 289 K) and the temperature of the ferrimagnet–paramagnet phase transition (TC = 288 K) are determined from the electron spin resonance (ESR) spectrum and the magnetization of an Fe1.1Ga0.9O3 single crystal, depending on temperature. Lines of spin-wave resonance are observed in the spectrum of magnetic resonance in the ordered phase.

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Держатели документа:
Zavoiskii Physical-Technical Institute, Federal Research Center "Kazan Scientific Center", Russian Academy of Sciences, 420029, Kazan, Russia
Kirensky Institute of Physics, Federal Research Center "Krasnoyarsk Scientific Center", Siberian Branch, Russian Academy of Sciences, 660036, Krasnoyarsk, Russia
Institute of Physics, Kazan Federal University, 420008, Kazan, Russia
Prokhorov General Physics Institute, Russian Academy of Sciences, 119991, Moscow, Russia

Доп.точки доступа:
Yatsyk, I. V.; Eremina, R. M.; Moshkina, E. M.; Мошкина, Евгения Михайловна; Batulin, R. G.; Shestakov, A. V.
}
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18.

    Синтез и магнитотранспортные свойства вертикальных гибридных структур Fe3Si/Ge/Mn5Ge3/Si(111) / А. В. Лукьяненко, Л. В. Шанидзе, М. В. Рауцкий [и др.] // Новое в магнетизме и магнитных материалах : сборник трудов XXV международной конференции / прогр. ком.: Р. С. Исхаков, С. Г. Овчинников [и др.]. - 2024. - Секция 1 [Сборник 1] : Новые магнитные и родственные им материалы: синтез и физические свойства. Преподавание по разделам «Магнетизм» и «Магнитные материалы» в высшей школе. - С. 29-31. - Библиогр.: 4. - РНФ, Красноярский краевой фонд науки, грант № 23-22-10033 . - ISBN 978-5-4465-1869-2
   Перевод заглавия: Synthesis and magnetotransport properties of vertical hybrid structures Fe3Si/Ge/Mn5Ge3/Si(111)
Аннотация: Гибридные структуры ферромагнетик/полупроодвник, относящиеся к полупроводниковой спинтронике, притягивают пристальное внимание исследователей на протяжении уже более двадцати лет, оставаясь по-прежнему актуальными. В настоящей работе продемонстрирован синтез трёхслойных структур Fe3Si/Ge/Mn5Ge3 на подложках Si(111) и представлены результаты исследования магнитотранспортных свойств простейших вертикальных структур приготовленных на их основе литографическими методами.

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Держатели документа:
Институт физики им. Л.В. Киренского Сибирского отделения Российской академии наук - обособленное подразделение ФИЦ КНЦ СО РАН

Доп.точки доступа:
Исхаков, Рауф Садыкович \прогр. ком.\; Iskhakov, R. S.; Овчинников, Сергей Геннадьевич \прогр. ком.\; Ovchinnikov, S. G.; Лукьяненко, Анна Витальевна; Lukyanenko, A. V.; Шанидзе, Лев Викторович; Рауцкий, Михаил Владимирович; Rautskii, M. V.; Яковлев, Иван Александрович; Yakovlev, I. A.; Тарасов, Антон Сергеевич; Tarasov, A. S.; "Новое в магнетизме и магнитных материалах", международная конференция(25 ; 2024 ; 1-6 июля ; Москва); Научный совет по физике конденсированных сред РАН; МИРЭА - Российский технологический университет; Московский государственный университет им. М.В. Ломоносова; Магнитное общество России
}
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19.

    Soldatenko, A. S.
    N-silylmethyl-2-(1-naphthyl)acetamides: Synthesis, structure and computational screening / A. S. Soldatenko, M. S. Molokeev, N. F. Lazareva // Curr. Org. Chem. - 2024. - Vol. 28, Is. 12. - P. 959-966, DOI 10.2174/0113852728296495240409062733. - Cited References: 75. - This work was supported by the Russian Science Foundation using the analytical equipment of the Baikal Center for Collective Use of the SB RAS and the analytical equipment of the Krasnoyarsk Center for Collective Use of SB RAS. M.S. Molokeev’s work was carried out within the framework of the Strategic Academic Leadership Program "Priority-2030" for the Siberian Federal University . - ISSN 1385-2728. - ISSN 1875-5348
   Перевод заглавия: N-силилметил-2-(1-нафтил)ацетамиды: синтез, структура и вычислительный скрининг
Кл.слова (ненормированные):
N-organyl-2-(1-naphthyl)-N-(silylmethyl)acetamides -- NMR spectroscopy -- X-ray diffraction analysis -- computational screening -- PASS -- ADME
Аннотация: Synthesis of new hybrid organosilicon compounds based on the amides 1- naphthylacetic acid was described. N-Organyl-2-(1-naphthyl)-N-[(triethoxysilyl)methyl]- acetamides were obtained by the reaction of 1-naphthylacetyl chloride with α-silylamines RNHCH2Si(OEt)3 (R = Me, i-Pr and Ph). Their subsequent interaction with N(CH2CH2OH)3 led to the formation of N-organyl-2-(1-naphthyl)-N-(silatranylmethyl)acetamides. The structure of these hybrid compounds was characterized by 1H, 13C, and 29Si NMR spectroscopy. The structure of N-methyl- and N-isopropyl-2-(1-naphthyl)-N-(silatranylmethy)acetamides was confirmed by X-ray diffraction analysis. Results of computational screening showed that these silatranes are bioavailable and have drug-likeness.

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Держатели документа:
Siberian Division of the Russian Academy of Sciences, A.E. Favorsky Irkutsk Institute of Chemistry, 1 Favorsky Street, Irkutsk 664033, Russia
Laboratory of Crystal Physics, Federal Research Center KSC SB RAS, Kirensky Institute of Physics, Krasnoyarsk 660036, Russia
Institute of Engineering Physics and Radio Electronic, Siberian Federal University, Krasnoyarsk 660041, Russia

Доп.точки доступа:
Molokeev, M. S.; Молокеев, Максим Сергеевич; Lazareva, N. F.
}
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20.

Synthesis, structure and magnetic properties of monoclinic lanthanum-chromium borate LaCr3(BO3)4 / E. A. Volkova, M. S. Platunov, A. M. Antipin [et al.] // J. Alloys Compd. - 2024. - Vol. 994. - Ст. 174683, DOI 10.1016/j.jallcom.2024.174683. - Cited References: 38. - Single crystal X-ray analysis was carried out within the State assignment NRC "Kurchatov institute" (research contribution of A.M.A.). The research contribution of M.S.P. was partially supported by the Ministry of Science and Higher Education of the Russian Federation within the governmental assignment for Synchrotron radiation facility "SKIF", Boreskov Institute of Catalysis (project FWUR-2024–0040) . - ISSN 0925-8388. - ISSN 1873-4669
Кл.слова (ненормированные):
Borates -- Flux growth -- Crystal structure -- Differential scanning calorimetry -- Powder X-ray diffraction -- IR spectroscopy -- Antiferromagnet
Аннотация: Single crystals of LaCr3(BO3)4 were synthesized through spontaneous nucleation from a K2Mo3O10 flux melt. The crystal structure was determined using single-crystal X-ray diffraction (XRD) at temperatures of 293 K and 85 K. LaCr-borate crystallizes in the monoclinic C2/c space group with unit cell parameters a = 7.47980(5) Å, b = 9.55180(7) Å, c = 11.48330(8) Å, β= 104.0060(6)°, V = 796.04(1) Å3 (for C1, T = 293 K), and a = 7.47380(5) Å, b = 9.55520(7) Å, c = 11.47100(8) Å, β = 103.9330(6)°, V = 795.08(1) Å3 (for C2, T = 85 K), each with Z = 4. The temperature dependence of the unit cell parameters, including the monoclinic angle (β) and the unit cell volume (V), was investigated over the range of 85–293 K. No structural phase transitions were observed in the low-temperature region down to 85 K. Differential scanning calorimetry (DSC) measurements revealed no high-temperature phase transitions between 50 and 1350°C. Infrared (IR) spectroscopy confirmed the monoclinic structure of LaCr3(BO3)4 crystals, revealing characteristic absorption bands, including the lowest frequency mode associated with the translational vibrations of the La3+ ion.

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Faculty of Geology, Lomonosov Moscow State University, Moscow, Russian Federation
Synchrotron radiation facility SKIF, Boreskov Institute of Catalysis SB RAS, Kol’tsovo, Russian Federation
Shubnikov Institute of Crystallography, Complex "Crystallography and Photonics", NRC "Kurchatov institute", Moscow, Russian Federation
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Institute of Engineering Physics and Radio Electronics, Siberian Federal University, Krasnoyarsk, Russian Federation
Melnikov Research Institute of Comprehensive Exploitation of Mineral Resources of the Russian Academy of Sciences, Moscow, Russian Federation

Доп.точки доступа:
Volkova, E. A.; Platunov, M. S.; Платунов, Михаил Сергеевич; Antipin, A. M.; Alpanova, R. R.; Dubrovskiy, A. A.; Дубровский, Андрей Александрович; Pyastolova, Yu. V.; Пястолова, Юлия Валентиновна; Podobraznyh, A. D.; Kosorukov, V. L.; Koporulina, E. V.; Maltsev, V. V.
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