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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Antonova A. B., Chudin O. S., Vasiliev A. D., Rubaylo A. I., Verpekin V. V., Sokolenko W. A., Pavlenko N. I., Semeikin O. V.
Заглавие : Chemistry of vinylidene complexes. XX. Intramolecular carbonylation of vinylidene on the MnFe center: Spectroscopic and structural study. X-ray structure of the new trimethylenemethane type MnFe complex
Место публикации : J. Organomet. Chem.: Elsevier, 2011. - Vol. 696, Is. 4. - P.963-970. - ISSN 0022-328X, DOI 10.1016/j.jorganchem.2010.10.035
Примечания : Cited References: 52. - This work was partially supported by the Presidium of the Russian Academy of Sciences (Program for Basic Research, Project No. 7.18) and Russian Foundation for Basic Research (Grant No. 09-03-90745-mob_st). Authors are grateful to Prof. N.A. Ustynyuk for useful discussions, Dr. E.A. Shor and Dr. A.M. Shor for giving the data of quantum chemical study.
Предметные рубрики: MOLECULAR-STRUCTURE
ORGANOMETALLIC CHEMISTRY
TRICARBONYL COMPLEXES
UNSATURATED CARBENES
METAL VINYLIDENES
TRANSITION-METALS
ORGANIC-SYNTHESIS
CRYSTAL-STRUCTURE
IRON TRICARBONYL
MANGANESE
Ключевые слова (''Своб.индексиров.''): manganese--iron--carbonyl complexes--heteronuclear vinylidene complexes--intramolecular vinylidene carbonylation--trimethylenemethane complexes
Аннотация: Reactions of Fe-2(CO)(9) with Cp(CO)(2)Mn=C=CHPh (1) and Cp(CO)(PPh3)Mn=C=CHPh (3) gave the heterometallic trimethylenemethane complexes eta(4)-{C[Mn(CO)(2)Cp](CO)CHPh}Fe(CO)(3) (2) and eta(4)-{C[Mn(CO)(PPh3)Cp](CO)CHPh}Fe(CO)(3) (4), respectively. The formation of the benzylideneketene [PhHC=C=C=O] fragment included in complexes 2 and 4 occurs via intramolecular coupling of the carbonyl and vinylidene ligands. The structures of 3 and 4 were determined by single crystal XRD methods. The influence of the nature of the L ligands at the Mn atom on the structural and spectroscopic characteristics of eta(4)-{C[Mn(CO)(L)Cp](CO)CHPh}Fe(CO)(3) (L = CO (2), PPh3 (4)) is considered. According to the VT H-1 and C-13 NMR spectra, complex 2 reversibly transforms in solution into mu-eta(1):eta(1)-vinylidene isomer Cp(CO)(2)MnFe(mu-C=CHPh)(CO)(4) (2a), whereas complex 4 containing the PPh3 ligand is not able to a similar transformation. (C) 2010 Elsevier B.V. All rights reserved.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Verpekin V. V., Vasiliev A. D., Kondrasenko A. A., Burmakina G. V., Chudin O. S., Pavlenko N. I, Zimonin, Dmitry V., Rubaylo, Anatoly I.
Заглавие : Chemistry of vinylidene complexes. XXIV. A new μ-vinylidene complex containing RePt core, and platinum-bound carbonyl ligand. Spectroscopic, structural and electrochemical study
Коллективы : Russian Academy of Sciences [V.44.1.7]; Krasnoyarsk Region Science and Technology Support Fund [3/15]
Место публикации : J. Mol. Struct. - 2018. - Vol. 1163. - P.308-315. - ISSN 0022-2860, DOI 10.1016/j.molstruc.2018.03.020. - ISSN 1872-8014(eISSN)
Примечания : Cited References: 45. - The reported study was funded by the State budget allocated to the fundamental research in the Russian Academy of Sciences in the framework of Project No. V.44.1.7 and was financially supported by Krasnoyarsk Region Science and Technology Support Fund (the junior scientists project no. 3/15).
Предметные рубрики: TRI-METAL COMPLEXES
RAY CRYSTAL-STRUCTURE
BRIDGING CARBENE
CARBYNE
Ключевые слова (''Своб.индексиров.''): rhenium--platinum--vinylidene complexes--heterometallic complexes--electrochemistry
Аннотация: The novel heterobinuclear μ-vinylidene complex [Cp(CO)2Re(μ-C=CHPh)Pt(PPh3)(CO)] (1) was isolated from the reaction mixture of [Cp(CO)2Re(μ-C=CHPh)Fe(CO)4] and Pt(PPh3)4 for the first time. Alternative high-yield synthetic approaches to 1 were developed including the reactions of [Cp(CO)2Re(μ-C=CHPh)Pt(PPh3)2] (2) with Co2(CO)8 and Rh(acac)(CO)2. The complex was characterized by IR and ¹H, ¹³C and ³¹P NMR spectroscopy, a molecular structure of 1 was determined by X-ray diffraction analysis. The electrochemical behavior of the new complex was studied by cyclic voltammetry at platinum or glassed carbon electrodes and by dc polarography at a dropping mercury electrode.
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Вид документа : Статья из журнала
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Автор(ы) : Verpekin V. V., Vasiliev A. D., Maksimov N. G., Burmakina G. V., Zimonin D. V., Nedelina T. S., Chudin O. S., Rubaylo A. I.
Заглавие : Structure, UV spectroscopic and electrochemical properties of 2-methyl-8-quinolinolato rhodium (I) complexes, containing carbonyl, triphenylphosphine or triphenylphosphite ligands
Место публикации : J. Mol. Struct. - 2022. - Vol. 1249. - Ст.131557. - ISSN 00222860 (ISSN), DOI 10.1016/j.molstruc.2021.131557
Примечания : Cited References: 31. - This work was conducted within the framework of the budget project # 121031500209-6 for Institute of Chemistry and Chemical Technology SB RAS using the equipment of Krasnoyarsk Regional Research Equipment center of Federal Research center, SB RAS. Authors are grateful to Alexander A. Kondrasenko for NMR measurements
Аннотация: The known Rh(2-Me-8-Oxq)(CO)2 complex (1) was prepared through treatment of dicarbonyl(acetylacetonate)rhodium (I) with 2-methyl-8-hydroxyquinoline for the first time. The reactions of 1 with triphenylphosphine and triphenylphosphite result in complexes Rh(2-Me-8-Oxq)(PPh3)(CO) (2) and Rh(2-Me-8-Oxq)[P(OPh)3](CO) (3) that were characterized by IR and NMR spectroscopy. The structures of complexes 2 and 3 were determined by single-crystal X-ray diffraction analysis. The complexes show the 2-methyl-8-quinolinolato ligand in the expected coordination mode with a slightly disordered square planar geometry at the rhodium center. In the crystal, molecules of Rh(2-Ме-8-Oxq)(CO)(PPh3) (2) form centrosymmetric dimers due to π-stacking interactions. No intermolecular contacts are observed in the crystal of 3. The UV spectroscopic and electrochemical properties of complexes 1–3 were studied. Their electronic spectra in CH3CN show three quinoline-centered absorptions. The electrochemical study revealed that the oxidation of the complexes 1–3 is two-electron and leads to the formation of dication Rh (III) species while their reduction gives radical anions, which undergoes rapid decomposition.
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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., Verpekin V.V., Semeikin O.V.
Заглавие : Chemistry of vinylidene complexes
Место публикации : Russ. Chem. Bull. - NEW YORK: SPRINGER, 2009. - Vol. 58, Is. 5. - С. 955-963. - MAY. - ISSN 1066-5285, DOI 10.1007/s11172-009-0122-3
Примечания : Cited Reference Count: 35. - Гранты: This work was financially supported by the Krasnoyarsk Regional Science Foundation (Grants Nos. 10TS145 and 17G002), the Council on Grants at the President of the Russian Federation (Program for State Support of Leading Scientific Schools, Grant NSh-4137.2006.2), and the Presidium of the Russian Academy of Sciences (Program for Basic Research, Project No. 18.18).Финансирующая организация: Krasnoyarsk Regional Science Foundation [10TS145, 17G002]; Council on Grants at the President of the Russian Federation [NSh-4137.2006.2]; Presidium of the Russian Academy of Sciences [18.18]
Предметные рубрики: RAY CRYSTAL-STRUCTURE
MOLECULAR-STRUCTURE
PHENYLVINYLIDENE LIGANDS
BRIDGED COMPLEXES
TRANSITION-METALS
CARBONYL LIGAND
BINUCLEAR
DERIVATIVES
DINUCLEAR
RHENIUM
Ключевые слова (''Своб.индексиров.''): vinylidene complexes--heterometallic complexes--manganese--rhenium--palladium--platinum--ir and nmr spectroscopy--x-ray diffraction study--heterometallic complexes--ir and nmr spectroscopy--manganese--palladium--platinum--rhenium--vinylidene complexes--x-ray diffraction study
Аннотация: The reactions of Cp(CO)(2)Re=C=CHPh (2) with M(PPh(3))(4) (M = Pd, Pt) gave the mu-vinylidene complexes Cp(CO)(2)RePd(mu-C=CHPh)(PPh(3))(2) (3) and Cp(CO)(2)RePt(mu-C=CHPh)(PPh(3))(2) (1), respectively. The substitution of Ph(2)PCH(2)PPh(2) (dppm) for the PPh(3) ligands in 1 resulted in the formation of Cp(CO)RePt(mu-C(1)=C(2)HPh)(mu-CO)(dppm) (4). The structure of complex 4 has been determined by single-crystal X-ray diffraction analysis. The structural and spectroscopic characteristics of complexes 1, 3, and 4 were compared with the corresponding parameters of the manganese-containing analogs Cp(CO)(2)MnPd(mu-C=CHPh)(PPh(3))(2) (5), Cp(CO)(2)MnPt(mu-C=CHPh)(PPh(3))(2) (6) and Cp(CO)(2)MnPt(mu-C=CHPh)(dppm) (7).
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