Coordination properties of trimeric porphyrin in acetic acidRussian Journal of General Chemistry - Tập 85 - Trang 1470-1473 - 2015
E. M. Kuvshinova, I. A. Vershinina, S. A. Syrbu
Trimeric porphyrin H6TP as well as its binuclear Cu2H2TP and trinuclear Cu3TP copper complexes have been prepared. Kinetic features of H6TP and Cu2H2TP complexes formation with copper(II) acetate in acetic acid as well as dissociation kinetics of Cu2H2TP and Cu3TP in acetic acid medium in the presence of sulfuric acid have been studied.
New complexes of 3,4-dimethoxyphenylacetic acid with selected transition metal ions: Spectral, thermal, and magnetic propertiesRussian Journal of General Chemistry - Tập 87 - Trang 2045-2055 - 2017
W. Ferenc, D. Osypiuk, B. Cristóvão, J. Sarzyński, H. Głuchowska
3,4-Dimethoxyphenylacetates of Mn(II), Co(II), Ni(II), Cu(II), and Zn(II) of general formula M(C10H11O4)2·nH2O, where n = 1, 2 or 4 depending on M(II) ions, are obtained. The complexes crystallize in monoclinic or triclinic systems. The carboxylate groups act as bidentate chelating or bridging ligands. On heating in the air (293–1173 K) they decompose in three steps finally forming oxides of the c...... hiện toàn bộ
Reactions of Trimethylsilyl Isocyanate with Alcohols and PhenolsRussian Journal of General Chemistry - Tập 71 - Trang 325-326 - 2001
M. A. Pudovik, N. E. Krepysheva, D. I. Kharitonov, A. N. Pudovik
Mono- and diphenols add to trimethyl isocyanate on heating to give the corresponding aryl urethanes. Ethanol reacts with trimethylsilyl isocyanate to give ethyl urethane and ethyl allophanate in a ratio determined by reaction conditions.
Carbon sorbents for immobilization of tritium-containing waste oilsRussian Journal of General Chemistry - Tập 81 - Trang 1999-2006 - 2011
A. B. Sazonov, Aung Djo Thun, E. P. Magomedbekov, A. V. Ponomarev, I. G. Tananaev, B. F. Myasoedov
Emission of tritium from the pump oil-carbon sorbent-cement compositions (where the carbon sorbent is thermally expanded graphite or charcoal fabricated by thermal or radiation evaporation of a cellulose material) was studied. The compositions are characterized by a high hold-up ability with respect to oil components, when the matrix is contacted with water. The apparent diffusion coefficients of ...... hiện toàn bộ
Unexpected formation of 6,7-dihydrobenzo[4′,5′]imidazo-[1′,2′: 1,6]pyrimido[5,4-a]indolizine derivative in the alkylation of 2-amino-1-(benzimidazol-2-yl)-3-(4-methoxybenzoyl)indolizineRussian Journal of General Chemistry - Tập 81 - Trang 2172-2175 - 2011
T. A. Saraeva, G. E. Khoroshilov, V. S. Brovarets, R. I. Zubatyuk, O. V. Shishkin
An attempt to effect exhaustive alkylation of 2-amino-1-(benzimidazol-2-yl)-3-(4-methoxybenzoyl) indolizine with alkyl iodides in boiling acetone led to the formation of 6,6-dimethyl-8-(4-methoxybenzoyl)-6,7-dihydrobenzo[4′,5′]imidazo[1′,2′: 1,6]pyrimido[5,4-a]indolizine instead of expected N-alkyl derivatives. The product structure was proved by X-ray analysis.
Theoretical approaches to prediction of polymer propertiesRussian Journal of General Chemistry - Tập 81 - Trang 268-276 - 2011
S. I. Kuchanov
A brief introduction to statistical theory of polymers was provided in a popular manner, with emphasis on quantitative description of polymer liquids. This is essential in view of fact that (1) samples of synthetic polymers differ fundamentally from those of low-molecular-weight compounds by normally several orders of magnitude higher molecular weights and that (2) polymer products represent a set...... hiện toàn bộ
Biphasic catalysis in petrochemical processesRussian Journal of General Chemistry - Tập 79 - Trang 1370-1383 - 2009
E. A. Karakhanov, A. L. Maksimov
Main features of the concept of homogeneous metal complex biphasic catalysis are considered. Different techniques for immobilization of metal complexes in water, ionic liquids, supercritical carbon dioxide, and fluorous solvents are discussed. The use of discussed approaches in petrochemical processes is analyzed.