Synthesis and structural characterization of novel zinc(II) and cadmium(II) complexes with pyridine-phosphine chalcogenide ligands |
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| Authors: | Svetlana N. Arbuzova Nina I. Ivanova Ludmila I. Larina Grigorii G. Alexandrov Boris A. Trofimov |
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| Affiliation: | a A.E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, 1 Favorsky St., Irkutsk 664033, Russian Federationb Institute of Problems of Chemical Physics RAS, 1 Semenov Av, 142432 Chernogolovka, Russian Federationc Kurnakov Institute of General and Inorganic Chemistry RAS, 31 Leninskii Av, 119991 Moscow, Russian Federation |
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| Abstract: | New pyridine-phosphine chalcogenide ligands, tris[2-(2-pyridyl)ethyl]phosphine sulfide 1a and tris[2-(2-pyridyl)ethyl]phosphine selenide 1b, react with zinc(II) and cadmium(II) chlorides in EtOH at room temperature to afford complexes of compositions 2ZnCl2·2L (2, L = 1a) and 3CdCl2·2L (3a,b, L = 1a,b) in high yields. The solid-state structure of complexes 2, 3 has been proved by X-ray analysis data. Complex 2 is a centrosymmetric dimer, where two atoms of zinc are bonded by two bridging pyridine-phosphine sulfide ligands through N atoms. Complexes 3a,b exist as polymeric chains with each bridging ligand acting as a chelate N,S- or N,Se-donor to one cadmium(II) center and as a pyridine N-donor to the next cadmium(II) center. |
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| Keywords: | Tris[2-(2-pyridyl)ethyl]phosphine sulfide Tris[2-(2-pyridyl)ethyl]phosphine selenide Cadmium(II) Zinc(II) Complexes Solid state structure |
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