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S. P. Gubin O. M. Chentsova G. V. Burmakina A. A. Loganson 《Russian Chemical Bulletin》1981,30(12):2324-2326
Conclusions By reacting the Na derivatives of metal carbonyls with l-chloro-3-trichlorostannyldodecacarbonyltriosmium ClOs3(CO)12SnCl3 we were the first to obtain pentanuclear linear compounds that contain a fragment composed of three osmium atoms in the metal chain.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 12, pp. 2790–2792, December, 1981. 相似文献
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Comparison of the results of the electrochemical reduction of trinuclear osmium carbonyl halides with linear structure, Os3(CO)12X2, and nonlinear structure, Os3(CO)10(-X)2 (X=I, Br, and Cl) with mononuclear carbonyl halides of transition metals indicates covalent nature of the metal-halogen bonds in these compounds. Chemical dissociation does not occur upon dissolving the trinuclear osmium carbonyl halides in acetonitrile and the cleavage of the Os-X bonds is a result of the electrochemical reduction. The observed order for ease of reduction of the trinuclear osmium carbonyl halides coincides with the change in the E1/2 values in the reduction of the mononuclear carbonyl halides of transition metals and alkyl halides.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 2, pp. 459–460, February, 1990. 相似文献
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Burmakina G. V. Pogrebnyakov D. A. Pavlenko N. I. Antonova A. B. Rubailo A. I. 《Russian Journal of General Chemistry》2003,73(9):1335-1340
Reduction of a series of palladium-containing complexes with MnPd, Fe2Pd, and Fe3Pd skeletons was studied by classical polarography, cyclic voltammetry, and controlled-potential electrolysis in acetonitrile. The electrochemical behavior of these complexes was compared to that of relared platinum complexes. 相似文献
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I. M. Davletbaeva I. I. Zaripov R. R. Karimullin A. M. Gumerov R. S. Davletbaev G. V. Burmakina 《Polymer Science Series B》2017,59(1):69-79
Metal complexes are prepared from poly(oxyethylene glycol) and iron(III) chloride and studied as modifiers of framed aromatic polyurethanes. The latter polymers are synthesized on the basis of macroinitiators, 4,4'-dihydroxy-2,2-diphenylpropane, and polyisocyanate, which is a mixture of 4,4'-diphenylmethane diisocyanate and its branched derivatives. The interaction of iron(III) chloride with poly(oxyethylene glycol) is accompanied by redox processes that lead to its degradation and partial reduction of Fe(III) to Fe(II). Aromatic polyurethanes are modified in the concentration range of metal complexes from 0.5 to 20%. At a concentration of metal complexes of 4–7%, the polymer shows high mechanical characteristics and excellent thermal stability. The framed structure of aromatic polyurethanes hampers the effective contacts of coordinately bonded Fe atoms that are present in various oxidation states. 相似文献
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Verpekin Victor V. Ahremchik Ivan S. Vasiliev Alexander D. Burmakina Galina V. Kondrasenko Alexander A. Nedelina Tatyana S. Kreindlin Arkadii Z. 《Transition Metal Chemistry》2020,45(8):589-594
Transition Metal Chemistry - The new σ-alkynyl iron(II) complex Cp(CO)2Fe-C≡C-(2-C4H3S) was synthesized with application of several known approaches based on the transition metal... 相似文献
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The system peaks that often appear on electropherograms in anion separation by CE with indirect spectrophotometric detection, negative voltage polarity and cathodic EOF are studied. The system peaks are shown to correspond to the zones with the changed concentration of the BGE constituents; they appear while the zone of each analyte anion passes through the outlet end of the capillary and are transported to the detector by EOF. An equation is suggested for predicting migration times of the system peaks with an error of 1%. The ratios of the system peak area to the analyte peak area are found to amount to 20%. It is shown that it is possible to avoid overlapping of the system peaks and analyte peaks by controlling the EOF velocity owing to hydrodynamic pressure. Using the mathematical simulation of CE shows that the system peaks and baseline shift can result from changing the transference numbers of the BGE ions and analyte ions at the capillary edge. The cases when the system peak may be incorrectly identified as the peak of analyte ion are considered. In order to avoid such errors, some practical recommendations are given. 相似文献