1-amino-2-thiobenzimidazoleimines as novel ambidentate ligand systems |
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| Authors: | 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 |
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| Affiliation: | (1) Institute of Physical and Organic Chemistry, Rostov State University, pr. Stachki 194/3, Rostov-on-Don, 344104, Russia;(2) Rostov State Peadagogical University, Rostov-on-Don, Russia;(3) International Tomography Center, Siberian Division, Russian Academy of Sciences, Novosibirsk, Russia;(4) Research Institute of Physics, Rostov State University, pr. Stachki 194, Rostov-on-Don, 344104, Russia |
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| Abstract: | 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. |
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