排序方式: 共有59条查询结果,搜索用时 15 毫秒
1.
I. S. Vasil’chenko T. E. Shestakova V. N. Ikorskii T. A. Kuz’menko V. G. Vlasenko L. N. Divaeva A. S. Burlov A. I. Uraev I. V. Pirog G. S. Borodkin P. B. Chepurnoi I. G. Borodkina O. A. Beletskii O. A. Karpov I. E. Uflyand A. D. Garnovskii 《Russian Journal of Coordination Chemistry》2007,33(3):176-183
Azomethine derivatives of 1-amino-2-thiobenzimidazole (H2L) were synthesized and studied by IR and 1H NMR spectroscopy. Thiobenzimidazoline tautomeric form of these compounds was found to predominate in a solid state and DMSO solution. Novel mono-and binuclear metal chelates M(HL)2 and M2L2 (M = Ni(II), Cu(II), Co(II), Zn(II), Cd(II)) were synthesized on the basis of H2L derivatives and their composition and structures were established from IR, 1H NMR, EXAFS, and magnetochemical data. The composition of coordination sphere was shown to produce no effect on ferromagnetic exchange in binuclear Cu(II) complexes. 相似文献
2.
A Study of Competitive Coordination of Benzochalcogenazole Ligands by Heteronuclear NMR Spectroscopy
Borodkina I. G. Uraev A. I. Borodkin G. S. Sadekov I. D. Garnovskii A. D. Minkin V. I. 《Russian Journal of General Chemistry》2003,73(11):1810-1814
Complexes of 2-methyl(phenyl)benzo-1,3-tellurazole and 2-methyl(phenyl)benzo-1,3-selenazole with tungsten pentacarbonyl and boron trifluoride were studied by heteronuclear NMR spectroscopy (1H, 13C, 77Se, and 125Te). The coordination mode of the ambident ligand can be determined from the coordination shifts of the 125Te and 77Se NMR signals: upfield at coordination via Te and Se atoms and downfield at N coordination. 相似文献
3.
Milutka M. S. Burlov A. S. Vlasenko V. G. Koshchienko Yu. V. Korshunova E. V. Uraev A. I. Trigub A. L. Zubenko A. A. Klimenko A. I. Gusev A. N. 《Russian Journal of General Chemistry》2022,92(7):1297-1308
Russian Journal of General Chemistry - Azomethines were synthesized from 2,4,6-trimethylaniline, salicylaldehyde, and its 3(5)-halogen derivatives, as well as their complexes with zinc(II) (ZnL2).... 相似文献
4.
A. I. Uraev L. D. Popov S. I. Levchenkov I. N. Shcherbakov V. G. Vlasenko K. Yu. Suponitskii S. S. Beloborodov D. A. Garnovskii V. A. Kogan 《Russian Journal of Coordination Chemistry》2014,40(9):599-606
The copper(II) and nickel(II) complexes based on bis(azomethine), which is the condensation product of 1-phenyl-3-methyl-4-formyl-5-mercaptopyrazole with 1,3-diaminopropan-2-ol, are synthesized. Bis-azomethines can form both binuclear and mononuclear complexes in which the hydroxy group is not involved in coordination. The binuclear copper(II) complexes with the acetate and pyrazolate bridges exhibit an antiferromagnetic exchange, which strength is determined by the nature of the bridge (2J = ?154 and ?424 cm?1, respectively). The structure parameters of the coordination spheres of the complexes are determined by X-ray absorption spectroscopy. The structure of the CHCl3 solvate of the binuclear copper(II) complex with the pyrazolate bridge is solved by X-ray diffraction analysis (CIF file CCDC 964655). 相似文献
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6.
Borodkina I. G. Antsyshkina A. S. Sadikov G. G. Mistryukov A. E. Garnovskii D. A. Uraev A. I. Borodkin G. S. Garnovskaya E. D. Sergienko V. S. Garnovskii A. D. 《Russian Journal of Coordination Chemistry》2003,29(7):519-523
2-Amino-1-methyl-benzoimidazolium chloride hydrate was structurally characterized by X-ray diffraction analysis. Its crystal is built from organic cations, chloride anions, and molecules of crystallization water, which are united through a related system of hydrogen bonds. In the organic cation, the proton is localized at the N atom of the pyridine type. 相似文献
7.
A. S. Burlov A. I. Uraev K. A. Lysenko G. G. Chigarenko A. G. Ponomarenko P. V. Matuev S. A. Nikolaevskii E. D. Garnovskaya G. S. Borodkin A. D. Garnovskii 《Russian Journal of Coordination Chemistry》2006,32(9):686-691
Novel Cu(II) and Pd(II) complexes with o-phenylaminoazo compounds were synthesized and studied by X-ray diffraction. Distorted tetrahedral chelate complex of Cu contains two six-membered CuN3C2 metal cycles. The complexes under study can be used as industrial lubricant additives. 相似文献
8.
V. G. Vlasenko A. I. Uraev Ya. V. Zubavichus A. A. Chernyshov A. D. Garnovskii R. K. Mamin 《Bulletin of the Russian Academy of Sciences: Physics》2008,72(4):468-470
A series of copper metallochelates C22H18CuN4O2 X (X = Se, S, O) as models of active centers of natural metalloproteins have been synthesized on the basis of new azomethine ligand systems. The structure of the complexes has been studied by extended X-ray absorption fine-structure spectroscopy. It is shown that, in the metallochelates with X = Se or S, one azomethine chalcogen-containing ligand undergoes tridentate interaction with copper ions, while the other ligand is an acetate group. As a result, a complex with the N2O2 X environment is formed, where one of the oxygen atoms of the acetate group is at a large distance from the metal ion: R = 2.56–2.68 Å. For the metallochelate with X = O, coordination of the acetate group by a copper ion is found to be absent, and only interaction with azomethine ligands having average Cu-N/O distances R = 1.96–2.04 Å is observed. 相似文献
9.
A.?S.?BurlovEmail author S.?A.?Mashchenko V.?G.?Vlasenko S.?A.?Nikolaevskii M.?A.?Kiskin Ya.?V.?Zubavichus A.?I.?Uraev D.?A.?Garnovskii E.?V.?Korshunova S.?I.?Levchenkov 《Russian Journal of General Chemistry》2018,88(2):262-270
Novel Cu(II), Co(II), Ni(II), and Zn(II) complexes of 5-methyl-2-phenyl-4-[(4-phenylazo)anilinemethylylidene]- 2,4-dihydro-3H-pyrazole-3-thione and 5-methyl-4-[4-methyl-2-(4-methylphenylazo)anilinemethylylidene]- 2-phenyl-2,4-dihydro-3H-pyrazole-3-thione, i.e. ligands containing the phenylazo group in the ortho and para positions of the aniline fragment, were synthesized by the chemical and electrochemical methods. The complexes and ligands were characterized by IR, 1H NMR, X-ray absorption spectroscopy and magnetochemistry. The azo group of the ligands is not involved in coordination to the metal. 相似文献
10.
A. S. Burlov V. N. Ikorskii S. A. Nikolaevskii Yu. V. Koshchienko V. G. Vlasenko Ya. V. Zubavichus A. I. Uraev I. S. Vasil’chenko D. A. Garnovskii G. S. Borodkin A. D. Garnovskii 《Russian Journal of Inorganic Chemistry》2008,53(10):1566-1572
Tridentate azomethine ligands with N2O4 and N3donor atoms and their copper complexes were synthesized and characterized. The dimeric structure of copper(II) chelates was confirmed by EXAFS studies. Complexes based on 2-tosylaminobenzaldehyde azomethines tend to undergo ferromagnetic exchange, whereas similar salicylaldehyde derivatives have antiferromagnetic exchange. 相似文献