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Aver'yanov, E. M.
Dimension of mesogenic molecules as atomic clusters / E. M. Aver'yanov // Phys. Solid State. - 2005. - Vol. 47, Is. 2. - P. 378-389, DOI 10.1134/1.1866424. - Cited References: 19 . - ISSN 1063-7834

РУБ Physics, Condensed Matter
Рубрики:
LIQUID-CRYSTAL CHEMISTRY
ORIENTATIONAL ORDER
TRANSITION
Аннотация: The problem regarding the mass dimension D of mesogenic molecules as atomic clusters is formulated and solved using computer simulation and analytical calculations. For a large number of compounds belonging to different chemical classes, it is shown that the cores of discotic lacunar (rodlike, lathlike) molecules forming nematic or columnar discotic (calamitic) phases have a fractional dimension 1 D-c 2 (D-c approximate to 1). The dependences of the dimension D-c on the symmetry, the conformation, and the structural-chemical features of the molecular core are determined. It is demonstrated that, in the region of side flexible chains in molecules of both types, the dimension D-ch can be either smaller or larger than unity, depending on the chain conformation. An analytical expression accounting for the results of numerical experiments is obtained for the dimension D-ch. (C) 2005 Pleiades Publishing, Inc.

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Держатели документа:
Russian Acad Sci, Siberian Div, Kirensky Inst Phys, Krasnoyarsk 660036, Russia
ИФ СО РАН
Kirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Аверьянов, Евгений Михайлович
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Beta-phase silicon nanowires: structure and properties [Text] / P. B. Sorokin, P. V. Avramov [et al.] // 9th Biennial International Workshop "Fullerenes and Atomic Clusters" (IWFAC 2009) : July 6-10, 2009, St Petersburg, Russia : abstracts. - 2009. - Ст. P4.4. - P99

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Доп.точки доступа:
Sorokin, P.B.; Avramov, P.V.; Demin, V.A.; Chernozatonskii, L.A.; "Fullerenes and Atomic Clusters", Biennial International Workshop(9 ; 2009 ; JUL)
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Butenko, A. V.
Giant impurity nonlinearities in optics of fractal clusters / A. V. Butenko, V. M. Shalayev, M. I. Stockman // Zhurnal |Eksperim. Teor. Fiz. - 1988. - Vol. 94, Is. 1. - P. 107-124. - Cited References: 12 . - ISSN 0044-4510

РУБ Physics, Multidisciplinary

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Держатели документа:
LV KIRENSKII PHYS INST,KRASNOYARSK,USSR
KRASNOYARSK STATE UNIV,KRASNOYARSK,USSR
ИФ СО РАН
Доп.точки доступа:
Shalayev, V. M.; Шалаев, Владимир Михайлович; Stockman, M. I.; Бутенко, Андрей Викторович
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Chemistry of vinylidene complexes. XIII. The reaction between Cp(CO)2MnPt(?-C=CHPh)(?2-dppm) and Fe2(CO)9: Simultaneous formation of the ?3-vinylidene MnFePt and ?4-vinylidene PtFe3 clusters. Crystal structure of (?5-C5H5)MnFePt(? 3-C=CHPh)(CO)6. / A. B. Antonova [et al.] // Journal of Organometallic Chemistry. - 1999. - Т. 577, № 2. - P. 238-242 . - ISSN 0022-328X

ГРНТИ

31.17

РИНЦ
Держатели документа:
A.N. Nesmeyanov Inst. Organo-E.,Russ. Acad. Sci., Vavilov S.
Inst. of Chem. and Chem. Technology,Siberian Br. Russ. Acad. Sci., K.
Доп.точки доступа:
Antonova, A.B.; Johansson, A.A.; Deykhina, N.A.; Pogrebnyakov, D.A.; Pavlenko, N.I.; Rubaylo, A.I.; Dolgushin, F.M.; Petrovskii, P.V.; Ginzburg, A.G.
}
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    Chemistry of vinylidene complexes. XVIII. Synthesis and molecular structure of the novel trinuclear mu(3)-vinylidene complex CpReFePt(mu(3)-C=CHPh)(CO)(6)(PPh(3)) / A. B. Antonova [et al.] // J. Organomet. Chem. - 2009. - Vol. 694, Is. 1. - P. 127-130, DOI 10.1016/j.jorganchem.2008.08.037. - Cited Reference Count: 17. - Гранты: This work was supported by the Council of the Russian Federation President for Support of Young Scientists and Leading Scientific Schools (Project No. NSch-4137.2006.2) and the Krasnoyarsk Regional Science Foundation (Grants 10TS145 and 17G002). - Финансирующая организация: Council of the Russian Federation President for Support of Young Scientists and Leading Scientific Schools [NSch-4137.2006.2]; Krasnoyarsk Regional Science Foundation [10TS145, 17G002] . - ISSN 0022-328X
Рубрики:
CLUSTERS
   CRYSTAL
   MNFEPT
Кл.слова (ненормированные):
Vinylidene complexes -- Heterometallic clusters -- Rhenium -- Iron -- Platinum -- Crystal structure -- Crystal structure -- Heterometallic clusters -- Iron -- Platinum -- Rhenium -- Vinylidene complexes -- Atomic physics -- Atoms -- Bond length -- Chemical bonds -- Coordination reactions -- Crystal structure -- Iron compounds -- Nuclear magnetic resonance -- Nuclear magnetic resonance spectroscopy -- Platinum -- Quantum chemistry -- Rhenium -- Rhenium compounds -- Bond angles -- Co groups -- Double bonds -- Fe atoms -- Heterometallic -- Heterometallic clusters -- Pt atoms -- Trimetallic -- Vinylidene complexes -- X-ray diffractions -- Platinum compounds
Аннотация: The interaction between Cp(CO)(2)RePt(mu-C=CHPh)(PPh(3))(2) (1) and Fe(2)(CO)(9) afforded the new heterometallic mu(3)-vinylidene cluster CpReFePt(mu(3)-C=CHPh)(CO)(6)(PPh(3)) (2). An X-ray diffraction study shows the complex 2 possesses a trimetallic Re-Fe-Pt chain core. The bond lengths are Re-Fe 2.8221(8), Fe-Pt 2.5813(8) angstrom; the Re center dot center dot center dot Pt distance is 3.3523(7) angstrom; the bond angle Re-Fe-Pt is 76.55(3)degrees. The mu(3)-C=CHPh ligand is eta(1)-bound to the Re and Pt atoms and eta(2)-coordinated to the Fe atom. The C=C bond length is 1.412(4) angstrom. The Pt atom is coordinated by the PPh(3) and CO groups. Complex 2 is characterized by the IR and (1)H, (13)C and (31)P NMR spectra. (C) 2008 Elsevier B.V. All rights reserved.

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Держатели документа:
Russian Acad Sci, Inst Chem & Chem Technol, Siberian Branch, Krasnoyarsk 660049, Russia
Russian Acad Sci, Inst Phys, Siberian Branch, Krasnoyarsk 660036, Russia
Siberian Fed Univ, Krasnoyarsk 660041, Russia
Russian Acad Sci, AN Nesmeyanov Organoelement Cpds Inst, Moscow 119991, Russia

Доп.точки доступа:
Antonova, A.B.; Chudin, O.S.; Pavlenko, N.I.; Sokolenko, W.A.; Rubaylo, A.I.; Vasiliev, A. D.; Васильев, Александр Дмитриевич; Semeikin, O.V.
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Chemistry of vinylidene complexes. XXIII. Binuclear rhenium-palladium vinylidene bridged complexes, their reactions with diiron nonacarbonyl / V. V. Verpekin [et al.] // J. Organomet. Chem. - 2014. - Vol. 770. - P. 42-50, DOI 10.1016/j.jorganchem.2014.07.024. - Cited References: 56. - This article is dedicated to the memory of Alla B. Antonova. . - ISSN 0022-328X. - ISSN 1872-8561

РУБ Chemistry, Inorganic & Nuclear + Chemistry, Organic
Рубрики:
TRANSITION-METAL-COMPLEXES
   CATIONIC CARBYNE COMPLEXES
   RAY CRYSTAL-STRUCTURE
   MOLECULAR-STRUCTURE
   HETEROBIMETALLIC COMPLEXES
   LIGANDS
   MANGANESE
   CLUSTERS
   DINUCLEAR
   PD2CL2(MU-PH2PCH2PPH2)2
Кл.слова (ненормированные):
Rhenium -- Palladium -- Iron -- Vinylidene complexes -- Heterometallic complexes
Аннотация: The reaction of [Cp(CO)2ReCCHPh] (1) with [Pd(PPh3)4] followed by the treatment of resulting [Cp(CO)2RePd(μ-CCHPh)(PPh3)2] (2) with diphosphines (dppe, dppp) gave new complexes [Cp(CO)2RePd(μ-CCHPh)(dppe)] (3) and [Cp(CO)2RePd(μ-CCHPh)(dppp)] (4). Treatment of the synthesized complexes with [Fe2(CO)9] led to mixtures of [Cp(CO)2ReFe(μ-CCHPh)(CO)4] (5), [(dppe)PdFe2(CO)8] (6), [CpReFe2(μ3-CCHPh)(CO)8] (7), [CpReFePd(μ3-CCHPh)(CO)5(dppe)] (8) and of 5, [(dppp)PdFe2(CO)8] (9), [CpReFePd(μ3-CCHPh)(CO)5(dppp)] (10), respectively. The main products of both reactions were trinuclear μ3-vinylidene clusters 8 and 10. Reactions of the trinuclear μ3-vinylidene ReFePd clusters 8 and 10 with Fe2(CO)9 were also studied. New complexes were characterized by IR, 1H, 13C, 31P NMR spectroscopy and cyclic voltammetry. The structure of [CpReFe2(μ3-CCHPh)(CO)8] was determined by single-crystal X-ray diffraction.

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Держатели документа:
Russian Acad Sci, Inst Chem & Chem Technol, Siberian Branch, Krasnoyarsk 660036, Russia
Russian Acad Sci, Inst Phys, Siberian Branch, Krasnoyarsk 660036, Russia
RAS, Siberian Branch, Krasnoyarsk Sci Ctr, Krasnoyarsk 660036, Russia
Siberian Fed Univ, Krasnoyarsk 660041, Russia

Доп.точки доступа:
Verpekin, V. V.; Верпекин В. В.; Kondrasenko, A. A.; Кондрасенко, Александр Александрович; Chudin, O. S.; Чудин О. С.; Vasiliev, A. D.; Васильев, Александр Дмитриевич; Burmakina, G. V.; Бурмакина Г. В.; Pavlenko, N. I.; Павленко, Нина Ивановна; Rubaylo, A. I.; Рубайло, Анатолий Иосифович
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Churilov, G. N.
Fullerene C-60 formation in partially ionized carbon vapor / G. N. Churilov, A. S. Fedorov, P. V. Novikov // JETP Letters. - 2002. - Vol. 76, Is. 8. - P. 522-526, DOI 10.1134/1.1533779. - Cited References: 15 . - ISSN 0021-3640

РУБ Physics, Multidisciplinary
Рубрики:
TOTAL-ENERGY CALCULATIONS
   WAVE BASIS-SET
   CLUSTERS
   GROWTH
Аннотация: The assembling rate of a fullerene C-60 molecule has been theoretically studied as a function of electron concentration and temperature in partially ionized carbon vapor. For C-60 formation via one or two intermediate stages of cluster collisions, it has been shown that there is a region of plasma parameters (the temperature and electron concentration) in which fullerene C-60 is formed more efficiently. The C-60 formation rate versus temperature and electron concentration relationships have been found to correlate with the trends in the collision cross-section of carbon clusters as functions of these parameters. (C) 2002 MAIK "Nauka/Interperiodica".

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Держатели документа:
Russian Acad Sci, Siberian Div, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
ИФ СО РАН
Kirenskii Institute of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Fedorov, A. S.; Федоров, Александр Семенович; Novikov, P. V.; Чурилов, Григорий Николаевич
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Dynamic chaos in magnetic systems / K. N. Alekseyev [et al.] // Uspekhi Fiz. Nauk. - 1992. - Vol. 162, Is. 7. - P. 81-118. - Cited References: 99 . - ISSN 0042-1294

РУБ Physics, Multidisciplinary
Рубрики:
CLASSICAL SPIN CLUSTERS
   YTTRIUM-IRON-GARNET
   PARALLEL-PUMPED MAGNONS
   NON-LINEAR SYSTEMS
   QUANTUM CHAOS
   FAT FRACTALS
   FERROMAGNETIC (CH3NH3)2CUCL4
   NONLINEAR DYNAMICS
   LEVEL REPULSION
   KICKED TOP
Аннотация: A review of the theoretical and experimental investigations of chaos in magnetic systems is represented. Both dissipative and Hamiltonian systems are considered. Basic scenarios of transitions to chaos in such systems are overlooked. Models and characteristics of chaotic oscillations in a parametric excitation of spin waves. NMR-masers, dynamics of spin chains, motion of spin in an external oscillating magnetic field and nonlinear NMR with a dynamic frequency shift are discussed. A problem of the quantum chaos in spin systems is analysed.

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Доп.точки доступа:
Alekseyev, K. N.; Berman, G. P.; Берман, Геннадий Петрович; Tsifrinovich, V. I.; Цифринович, Владимир Ильич; Frishman, A. M.
}
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Effects of size polydispersity on the extinction spectra of colloidal nanoparticle aggregates / A. E. Ershov [et al.] // Phys. Rev. B. - 2012. - Vol. 85, Is. 4. - Ст. 045421. - P. , DOI 10.1103/PhysRevB.85.045421. - Cited References: 41. - This work was supported by grants from the following foundations of the Russian Federation: Presidium of RAS, OFN RAS, and SB RAS. . - ISSN 1098-0121

РУБ Physics, Condensed Matter
Рубрики:
METAL FRACTAL CLUSTERS
   OPTICAL-PROPERTIES
   ABSORPTION
   NONLINEARITIES
   COMPOSITES
   SCATTERING
   PARTICLES
   SPHERES
   GRAINS
Аннотация: We investigate the effect of particle polydispersity on the optical extinction spectra of colloidal aggregates of spherical metallic (silver) nanoparticles, taking into account the realistic interparticle gaps caused by layers of stabilizing polymer adsorbed on the metal surface (adlayers). The spectra of computer-generated aggregates are computed using two different methods. The coupled-multipole method is used in the quasistatic approximation and the coupled-dipole method beyond the quasistatics. The latter approach is applicable if the interparticle gaps are sufficiently wide relative to the particle radii. Simulations are performed for two different particle size distribution functions (bimodal and Gaussian), varying the number of particles per aggregate, and different distribution functions of the interparticle gap width. The strong influence of the latter factor on the spectra is demonstrated and investigated in detail.

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Держатели документа:
[Ershov, Alexander E.
Isaev, Ivan L.
Semina, Polina N.
Karpov, Sergei V.] Russian Acad Sci, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
[Ershov, Alexander E.
Karpov, Sergei V.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
[Markel, Vadim A.] Univ Penn, Dept Bioengn, Dept Radiol, Philadelphia, PA 19104 USA
[Markel, Vadim A.] Univ Penn, Grad Grp Appl Math & Computat Sci, Philadelphia, PA 19104 USA

Доп.точки доступа:
Ershov, A. E.; Ершов, Александр Евгеньевич; Isaev, I. L.; Исаев, Иван Леонидович; Semina, P. N.; Семина, Полина Николаевна; Markel, V. A.; Karpov, S. V.; Карпов, Сергей Васильевич
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10.

Electromagnetic density of states and absorption of radiation by aggregates of nanospheres with multipole interactions / V. A. Markel [et al.] // Phys. Rev. B. - 2004. - Vol. 70, Is. 5. - Ст. 54202, DOI 10.1103/PhysRevB.70.054202. - Cited References: 81 . - ISSN 1098-0121

РУБ Physics, Condensed Matter
Рубрики:
DISCRETE-DIPOLE APPROXIMATION
   ENHANCED RAMAN-SCATTERING
   METAL FRACTAL CLUSTERS
   OPTICAL-PROPERTIES
   SELECTIVE PHOTOMODIFICATION
   DISORDERED CLUSTERS
   NUMERICAL-SIMULATION
   SPECTRAL DEPENDENCE
   PARTICULATE MATTER
   LIGHT-SCATTERING
Кл.слова (ненормированные):
carbon -- iron -- palladium -- silver -- article -- dipole -- electromagnetic field -- geometry -- mathematical analysis -- molecular interaction -- nanoparticle -- radiation absorption
Аннотация: We calculate the quasistatic electromagnetic density of states for aggregates of touching spheres, in particular, linear chains and computer-generated random fractal aggregates. Multipole moments with orders of up to L=64 are taken into account for random aggregates with the number of particles of up to N=100 and up to L=8000 for linear chains. Extensive comparisons with the dipole approximation and geometrical cluster renormalization method are performed. Extinction spectra are calculated for several metals and black carbon. Long wavelength electromagnetic properties of fractal aggregates are considered in details.

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Держатели документа:
Univ Penn, Dept Radiol, Philadelphia, PA 19104 USA
Jackson State Univ, Dept Phys, Jackson, MS 39217 USA
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
Moscow Inst Phys & Technol, Dolgoprudnyi 141700, Russia
Krasnoyarsk State Tech Univ, Dept Phys & Engn, Krasnoyarsk 660028, Russia
Natl Acad Sci Ukraine, Inst Surface Chem, UA-03164 Kiev, Ukraine
ИФ СО РАН
Department of Radiology, University of Pennsylvania, Philadelphia, PA 19104, United States
Department of Physics, Jackson State University, Jackson, MS 39217, United States
L. V. Kirensky Institute of Physics, Russian Academy of Sciences, Siberian Branch, Krasnoyarsk 660036, Russian Federation
Moscow Inst. of Phys. and Technology, Dolgoprudny, Moscow Region 141700, Russian Federation
Dept. of Physics, and Engineering, Krasnoyarsk State Tech. University, Krasnoyarsk 660028, Russian Federation
Institute of Surface Chemistry, Natl. Academy of Sciences of Ukraine, 17 General Naumov St., 03164 Kiev, Ukraine

Доп.точки доступа:
Markel, V. A.; Pustovit, V. N.; Karpov, S. V.; Карпов, Сергей Васильевич; Obuschenko, A. V.; Gerasimov, V. S.; Герасимов, Валерий Сергеевич; Isaev, I. L.; Исаев, Иван Леонидович
}
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