| Conţinutul numărului revistei |
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 SM ISO690:2012TSAPKOV, Victor I., SAMUSI, Nina. Cobalt, Nickel, Copper, and Zinc Complexes with Pyruvic Acid Isonicotinoyl- and Benzoylhydrazones. In: Russian Journal of General Chemistry, 1996, vol. 66, pp. 1649-1652. ISSN 1070-3632. |
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  Russian Journal of General Chemistry |
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| Volumul 66 / 1996 / ISSN 1070-3632 /ISSNe 1608-3350 | ||||||
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| Pag. 1649-1652 | ||||||
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Isonicotinic or benzoic acid hydrazide and pyruvic acid react with cobalt, nickel, copper, and zinc halides in ethanol to form the coordination compounds M(L-H)X·nH2O, M(L′-H)X·nH2O [M = Co, Ni, Cu, Zn; L = NC5H4C(O)NHN=C(CH3)COOH; L′ = C6H5C(O)NHN=C(CH3)COOH; X = Cl, Br; n = 0-3] and M(L-H)2·nH2O, M(L′-H)2·nH2O (M = Co, Ni; n = 1, 2). The structure of the complexes is octahedral for Co and Ni, square-planar for Cu, and tetrahedral for Zn. In all the compounds hydrazones L and L′ act as monobasic tridentate ligands. Thermolysis of the substances involves removal of outer-sphere (70-100°C) and inner-sphere (160-175°C) water, followed by exhaustive thermooxidative degradation (370-510°C). |
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