New polynuclear cobalt trimethylacetate complexes: synthesis and structure |
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| Authors: | M. A. Golubnichaya A. A. Sidorov I. G. Fomina M. O. Ponina S. M. Deomidov S. E. Nefedov I. L. Ermenko I. I. Moiseev |
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| Affiliation: | (1) N. S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, 31 Leninsky prosp, 117907 Moscow, Russian Federation |
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| Abstract: | Extraction of polymer (1), formed in the reaction of CoCl2 with KOOCBut, with boiling hexane gives crystals of hexamer Co6(μ3-OH)2(OOCBu1)10(HOOCBu1)4 (2). According to data of X-ray study, four Co11 atoms in the hexanuclear molecule2 have an octahedral ligand environment and two Co11 atoms have a tetrahedral one. Dissolution of polymer1 in EtOH results in its splitting into Co4(μ3-OH)2(OOCBu1)6(HOEt)6 tetramers (3). In molecule3, two asymmetric dimeric (η2-OOCBut)(EtOH)Co(μ-OOCBut)Co(HOEt)2 fragments are bound by two tridentate bridging OH groups. Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 9, pp. 1773–1778, September, 1999. |
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| Keywords: | cobalt trimethylacetates polynuclear complexes carboxylate ligands synthesis X-ray analysis |
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