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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Atuchin V. V., Chimitova O. D., Gavrilova T. A., Molokeev M. S., Kim S. J., Surovtsev N. V., Bazarov B. G., Bazarova Zh.G.
Заглавие : Synthesis, structural and vibrational properties of microcrystalline RbNd(MoO4)(2)
Коллективы : International Conference on Crystal Growth, International Conference on Vapor Growth and Epitaxy
Место публикации : J. Cryst. Growth: Elsevier Science BV, 2011. - Vol. 318, Is. 1. - P.683-686. - ISSN 0022-0248, DOI 10.1016/j.jcrysgro.2010.09.076
Примечания : Cited References: 26
Предметные рубрики: MOLYBDENUM TRIOXIDE
DOUBLE MOLYBDATES
CRYSTAL-STRUCTURE
GROWTH
LASER
MOO3
Ключевые слова (''Своб.индексиров.''): crystal structure--solid state synthesis--molybdate
Аннотация: Rubidium neodymium dimolybdate, RbNd(MoO4)(2), microcrystals have been fabricated by solid state synthesis at T=550-600 degrees C by t=324 ks. Crystal structure of RbNd(MoO4)(2) has been refined by Rietveld method in space group Pbcn with cell parameters a = 5.1772(1) angstrom, b = 18.7293(4) angstrom, and c = 8.2774(1) angstrom (R-B=5.05%). The crystal structure of RbNd(MoO4)(2) consists of layers of MoO4 tetrahedrons cornersharing with NdO8 square antiprisms. These layers are perpendicular to b-axis of the unit cell. About 20 narrow Raman lines have been observed in Raman spectrum recorded for RbNd(MoO4)(2) powder sample. (C) 2010 Elsevier B.V. All rights reserved.
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Atuchin V. V., Bazarov B. G., Chimitova O. D., Bekenev V. L., Khyzhun O. Yu., Bazarova Zh. G.
Заглавие : Synthesis and electronic structure of orthorhombic molybdate RbNd(MoO4)2
Коллективы : International Conference on the Physics of Optical Materials and Devices , Vinča Institute of Nuclear Sciences,, University of Belgrade, Laboratoire de Chimie de la Matière Condensée de Paris
Место публикации : The 3rd Int. Conf. on the Physics of Optical Materials and Devices. ICOM 2012: book of abstracts. - 2012. - P.209
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Atuchin V. V., Bekenev V. L., Chimitova O. D., Molokeev M. S., Bazarov B. G., Bazarova J. G., Khuzhum O. Y., Lim C. S.
Заглавие : Synthesis and electronic properties of β-RbNd(MoO4)2
Место публикации : Asian J. Chem. - 2014. - Vol. 26, No. 5. - P.1284-1286. - ISSN 0970-7077, DOI 10.14233/ajchem.2014.17209
Примечания : Cited References: 26. - This study is partly supported by by the Ministry of Education and Science of the Russian Federation.
Предметные рубрики: UP-CONVERSION PHOTOLUMINESCENCE
VIBRATIONAL PROPERTIES
CRYSTAL-STRUCTURE
PARTICLES
MOLYBDATE
SPECTROSCOPY
SYSTEM
ER3+
Ключевые слова (''Своб.индексиров.''): β-rbnd(moo4)2--electronic structure--ab initio calculations--x-ray photoelectron spectroscopy
Аннотация: The electronic structure of β-RbNd(MoO4)2 has been evaluated from experimental and theoretical points of view. For the molybdate, X-ray photoelectron valence-band spectra have been measured. The total and partial densities of states of the constituent atoms of β-RbNd(MoO4)2 have been calculated using the FP-LAPW method. The FP-LAPW data reveal that main contributors in the valence-band region of β-RbNd(MoO4)2 are the Rb 4p-, Nd 4f-, Mo 4d- and O 2p-like states.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Atuchin V. V., Aleksandrovsky A. S., Chimitova O. D., Krylov A. S., Molokeev M. S., Bazarov B. G., Bazarova J. G., Xia, Zhiguo
Заглавие : Synthesis and spectroscopic properties of multiferroic β΄-Tb2(MoO4)3
Коллективы : International Workshop on Advanced Spectroscopy and Optical Materials (4th; 14–19 July 2013; Gdańsk, Poland)
Место публикации : Opt. Mater./ ed.: M. Grinberg, P. Bojarski, A. Suchocki: Elsevier Science, 2014. - Vol. 36, Is. 10. - P.1631–1635. - ISSN 0925-3467, DOI 10.1016/j.optmat.2013.12.008. - ISSN 1873-1252
Примечания : Cited References: 43. - This study was partly supported by SB RAS under Projects 28.13 and 24.31, and by the PSB RAS Project No. 3.9.5b, and RFBR Projects
Предметные рубрики: FERROELECTRIC-FERROELASTIC Tb2(MoO4)3
STIMULATED RAMAN-SCATTERING
TRANSITION-METAL MOLYBDATES
RARE-EARTH MOLYBDATES
CRYSTAL-STRUCTURE
VIBRATIONAL PROPERTIES
LUMINESCENCE PROPERTIES
Tb-2(MoO4)3 CRYSTALS
TERBIUM MOLYBDATE
PHASE-TRANSITIONS
Ключевые слова (''Своб.индексиров.''): terbium molybdate--raman spectrum--optical properties
Аннотация: Orthorhombic terbium molybdate, β΄-Tb2(MoO4)3, microcrystals have been fabricated by solid state synthesis at T = 750-1270 K for t = 290 h. The crystal structure β΄-Tb2(MoO4)3 has been refined by Rietveld method in space group Pba2 with cell parameters of a = 10.35387(6), b = 10.38413(6) and c = 10.65695(7) A (RB = 1.83%). About 40 narrow Raman lines have been observed in the Raman spectrum recorded for the β΄-Tb2(MoO4)3 powder sample. The luminescence spectrum of β΄-Tb2(MoO4)3 has been measured under the excitation at 355 nm, and the intensive photoluminescence band at 540-550 nm has been found. В© 2013 Elsevier Ltd. All rights reserved.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Atuchin V. V., Aleksandrovsky A. S., Chimitova O. D., Gavrilova T. A., Krylov A. S., Molokeev M. S., Oreshonkov A. S., Bazarov B. G., Bazarova J. G.
Заглавие : Synthesis and spectroscopic properties of monoclinic α-Eu2(MoO4)3
Коллективы : Ministry of Education and Science of the Russian Federation
Место публикации : J. Phys. Chem. C: American Chemical Society, 2014. - Vol. 118, Is. 28. - P.15404-15411. - ISSN 1932-7447, DOI 10.1021/jp5040739
Примечания : Cited References: 63. - This study is partly supported by the Ministry of Education and Science of the Russian Federation.
Предметные рубрики: RARE-EARTH MOLYBDATES
VIBRATIONAL PROPERTIES
LUMINESCENCE PROPERTIES
CRYSTAL-STRUCTURE
PHASE-TRANSITIONS
TRIPLE MOLYBDATE
SINGLE-CRYSTAL
X-RAY
PHOSPHORS
EUROPIUM
Аннотация: The microcrystals of monoclinic europium molybdate, alpha-Eu-2(MoO4)(3), have been fabricated by solid-state synthesis at T = 753-1273 K for 300 h. The crystal structure of alpha-Eu-2(MoO4)(3) has been refined by the Rietveld method and was found to belong to the space group C2/c with unit cell parameters a = 7.5576(1), b = 11.4709(2), c = 11.5158(2) angstrom, and beta = 109.278(1)degrees (R-B = 3.39%). About 40 narrow Raman lines have been observed in the Raman spectrum of the alpha-Eu-2(MoO4)(3) powder sample. The luminescence spectra of alpha-Eu-2(MoO4)(3) under excitation at 355 and 457.9 nm reveal domination of induced electric dipole transition D-5(0) - F-7(2) and the presence of ultranarrow lines at D-5(0) - F-7(0) and D-5(1) - F-7(0) transitions.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Atuchin V. V., Khyzhun O. Y., Chimitova O. D., Molokeev M. S., Gavrilova T. A., Bazarov B. G., Bazarova J. G.
Заглавие : Electronic structure of β-RbNd(MoO4)2 by XPS and XES
Коллективы : Ministry of Education and Science of the Russian Federation; RFBR [12-02-90806-mol_rf_nr]
Место публикации : J. Phys. Chem. Solids. - 2015. - Vol. 77. - P.101-108. - ISSN 0022-3697, DOI 10.1016/j.jpcs.2014.09.012
Примечания : Cited References: 52. - This study was partially supported by the Ministry of Education and Science of the Russian Federation and RFBR Grant 12-02-90806-mol_rf_nr.
Предметные рубрики: RAY-EMISSION-SPECTROSCOPY
CRYSTAL-STRUCTURE
PHOTOELECTRON-SPECTROSCOPY
LUMINESCENCE PROPERTIES
VIBRATIONAL PROPERTIES
PHOTOEMISSION SPECTRA
OPTICAL-PROPERTIES
TERNARY MOLYBDATE
AB-INITIO
SYSTEM
Ключевые слова (''Своб.индексиров.''): inorganic compounds--chemical synthesis--photoelectron spectroscopy--x-ray diffraction--electronic structure
Аннотация: β-RbNd(MoO4)2 microplates have been prepared by the multistage solid state synthesis method. The phase composition and micromorphology of the final product have been evaluated by XRD and SEM methods. The electronic structure of β-RbNd(MoO4)2 molybdate has been studied employing the X-ray photoelectron spectroscopy (XPS) and X-ray emission spectroscopy (XES). For the molybdate, the XPS core-level and valence-band spectra, as well as XES bands representing energy distribution of the Mo 4d- and O 2p-like states, have been measured. It has been established that the O 2p-like states contribute mainly to the upper portion of the valence band with also significant contributions throughout the whole valence-band region. The Mo 4d-like states contribute mainly to a lower valence band portion
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Aleksandrov K. S., Anistratov A. T., Melnikova S. V., Kruglik A. I., Zherebtsova L. I., Shabanova L. A.
Заглавие : Ferroelectricity in CS-Li molybdate crystals
Место публикации : Fiz. Tverd. Tela: Mezhdunarodnaya kniga, 1982. - Vol. 24, Is. 4. - P.1094-1101. - ISSN 0367-3294
Примечания : Cited References: 9
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Klevtsov P. V., Glinskaya L. A., Klevtsova R. F., Aleksandrov K. S.
Заглавие : Synthesis and crystal structure analysis of binary molybdate CsNaMoO4В·2H2O
Место публикации : J. Struct. Chem. - 1997. - Vol. 38, Is. 4. - P.615-619. - ISSN 0022-4766
Аннотация: Single crystals of CsNaMoO4В·2H2O were synthesized, and the crystal structure of this compound was determined from X-ray diffraction data (SYNTEX P21 automatic diffractometer, MoK radiation, 2252 reflections, R = 0.037). Crystals are orthorhombic, space group P212121 with unit cell dimensions a = 6.379(1), b = 8.625(1), c = 13.671(2) A, Z = 4. The structure of the binary molybdate consists of continuous columns of face-sharing Na octahedra with attached MoO4 tetrahedra. The neighboring columns are linked by the Cs cations and the hydrogen bonds of the water molecules entering into the coordination polyhedra of the Na and Cs atoms.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Aleksandrov K. S., Ivanov Y. N., Schafer A. D.
Заглавие : Spectroscopic investigation of phase transitions in CsLiMoO//4 crystals.
Коллективы : European Meeting on Ferroelectricity
Место публикации : European Meeting on Ferroelectricity (5 ; 1983 ; Sept. ; 26-30 ; Malaga, Sp). Ferroelectrics. - 1983. - Vol. 55, Is. 1. - P.671-674. - ISSN 0015-0193
Ключевые слова (''Своб.индексиров.''): crystals - structure--magnetic resonance--spectroscopy, raman--cesium lithium molybdate--phase transitions--ferroelectric materials
Аннотация: Raman and NMR spectra in cubic and two distorted phases of CsLiMoO//4 have been studied. Phase transitions in the crystal are shown to belong to order-disorder type.
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10.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Savina A. A., Atuchin V. V., Solodovnikov S. F., Solodovnikova Z. A., Krylov A. S., Maximovsky E. A., Molokeev M. S., Oreshonkov A. S., Pugachev A. M., Khaikina E. G.
Заглавие : Synthesis, structural and spectroscopic properties of acentric triple molybdate Cs2NaBi(MoO4)3
Коллективы : Russian Foundation for Basic Research [4828.2012.2, 12-02-31205]; Federal Special Program "Scientific and scientific-pedagogical staff of innovative Russia" [8379]
Место публикации : J. Solid State Chem. - 2015. - Vol. 225. - P.53–58. - ISSN 0022-4596, DOI 10.1016/j.jssc.2014.11.023. - ISSN 1095-726X
Примечания : Cited References: 66. - The authors are grateful to Dr. K.M. Khal'baeva and Dr. Irina A. Gudkova for their assistance in preparing the compound and taking X-ray single-crystal diffraction data. This study is partly supported by the Russian Foundation for Basic Research (Grants 13-03-01020 and 14-03-00298). V.V.A., A.S.K. and A.S.O. gratefully acknowledge the Ministry of Education and Science of the Russian Federation for a partial financial support.
Предметные рубрики: CRYSTAL-STRUCTURE
SINGLE-CRYSTALS
VIBRATIONAL PROPERTIES
RAMAN-SPECTROSCOPY
HYDROTHERMAL SYNTHESIS
DIELECTRIC-PROPERTIES
SELECTIVE OXIDATION;
BISMUTH MOLYBDATES
IONIC-CONDUCTIVITY
OPTICAL-PROPERTIES
Ключевые слова (''Своб.индексиров.''): triple molybdate--sodium--cesium--bismuth--crystal structure--raman spectroscopy--crystal-structure--single-crystals--vibrational properties--raman-spectroscopy--hydrothermal synthesis--dielectric-properties--selective oxidation;--bismuth molybdates--ionic-conductivity--optical-properties
Аннотация: New ternary molybdate Cs2NaBi(MoO4)3 is synthesized in the system Na2MoO4–Cs2MoO4–Bi2(MoO4)3. The structure of Cs2NaBi(MoO4)3 of a new type is determined in noncentrosymmetric space group R3c, a=10.6435(2), c=40.9524(7) Å, V=4017.71(13) Å3, Z=12 in anisotropic approximation for all atoms taking into account racemic twinning. The structure is completely ordered, Mo atoms are tetrahedrally coordinated, Bi(1) and Bi(2) atoms are in octahedra, and Na(1) and Na(2) atoms have a distorted trigonal prismatic coordination. The Cs(1) and Cs(2) atoms are in the framework cavities with coordination numbers 12 and 10, respectively. No phase transitions were found in Cs2NaBi(MoO4)3 up to the melting point at 826 K. The compound shows an SHG signal, I2w/I2w(SiO2)=5 estimated by the powder method. The vibrational properties are evaluated by Raman spectroscopy, and 26 narrow lines are measured.
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