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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
Шифр издания :
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) : Krinitsyn D. O., Romanchenko A. S., Vorob'ev S. A., Likhatskii M. N., Karacharov A. A., Krylov A. S., Volochaev M. N., Mikhlin, Yu L.
Заглавие : Synthesizing zinc sulfide films on the gold surface as the sensor for electrochemical quartz crystal microbalance
Коллективы : Russian Scientific FoundationRussian Science Foundation (RSF) [18-17-00135]
Место публикации : Russ. J. Electrochem. - 2021. - Vol. 57, Is. 12. - P.1157-1163. - ISSN 1023-1935, DOI 10.1134/S1023193521120041. - ISSN 1608-3342(eISSN)
Примечания : Cited References: 23. - The study was supported by the Russian Scientific Foundation (grant no. 18-17-00135)
Предметные рубрики: CHEMICAL BATH DEPOSITION
ZNS
SPHALERITE
ELECTRODES
ACTIVATION
Аннотация: A zinc sulfate film is deposited from aqueous solutions of zinc sulfate onto the gold surface with the aim of preparation of a sensor for electrochemical quartz crystal microbalance (EQCM). The kinetics of this process, the particles formed in solution, and the film itself are studied by the methods of electrochemical quartz crystal microbalance, X-ray photoelectron spectroscopy, transmission electron microscopy, atomic force microscopy, optical and Raman spectroscopies, and dynamic light scattering. The effect of the procedure of gold surface preparation, the reagent concentration, and the temperature on the film adhesion, the length of induction period, the kinetics of film growth, and its structure and thickness are studied. It is shown that the film formation proceeds as a result of deposition of sufficiently coarse 200-700 nm colloid particles of sphalerite. It is demonstrated that this sensor can be used in studying the electrochemical reactions of ZnS and the interface phenomena by the methods of EQCM and cyclic voltammetry.
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