Библиотека института физики им. Л.В. Киренского СО РАН

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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Antonova A.B., Chudin O.S., Pavlenko N.I., Sokolenko W.A., Rubaylo A.I., Vasiliev A. D., Semeikin O.V.
Заглавие : 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))
Место публикации : J. Organomet. Chem. - 2009. - Vol. 694, Is. 1. - P.127-130. - ISSN 0022-328X, DOI 10.1016/j.jorganchem.2008.08.037
Примечания : 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]
Предметные рубрики: CLUSTERS
CRYSTAL
MNFEPT
Ключевые слова (''Своб.индексиров.''): 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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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Fedorov A. S., Kovaleva E. A., Sokolov A. Е., Visotin M. A., Lin C. R., Ovchinnikov S. G.
Заглавие : Trimetallic magnetite-Ti-Au nanoparticle formation: A theoretical approach
Место публикации : Mater. Chem. Phys. - 2021. - Vol. 271. - Ст.124847. - ISSN 02540584 (ISSN), DOI 10.1016/j.matchemphys.2021.124847
Примечания : Cited References: 46. - The reported study was funded by Joint Research Project of Russian Foundation for Basic Research # 19-52-52002 and Ministry of Science and Technology, Taiwan MOST # 109-2112-M-153-003 and # 108-2923-M-153-001-MY3
Аннотация: Geometric, electronic and magnetic structure of planar slabs consisting of magnetite Fe3O4, titanium and gold layers are investigated by DFT-GGA calculations. It is assumed that these slabs can be used to simulate the upper layers of magnetite nanoparticles covered with an intermediate layer of titanium and a gold layer on the surface. Specific energies and spreading parameters (wettability) of the magnetite-gold, magnetite-titanium and titanium-gold interfaces are calculated. The specific energy and spreading parameter of the magnetite-gold interface is found to be negative, while these values of the magnetite-titanium (for thin Ti layer) and magnetite-titan-gold interfaces are significantly positive. This allows us to hope that the intermediate thin layer of titanium at the boundary between the surface of the magnetite nanoparticle and the gold layer stabilizes this three-layer structure and allows obtaining magnetite nanoparticles covered with continuous gold coating.
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