Author： Morsali Ali Ramazani Ali
Publisher： Taylor & Francis Ltd
ISSN： 0095-8972
Source： Journal of Coordination Chemistry, Vol.58, Iss.9, 2005-06, pp. : 751-758
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Abstract
From the reaction between Zn(II), Cd(II) and Hg(II) with 5-methyl-1-(2'-pyridyl)pyrazole-3-carboxamide (MP y P z CA) in ethanol, the complexes [Zn(MP y P z CA)2(NO3)] + [(NO3)0.60(ClO4)0.40] - ·H2O, Cd(MP y P z CA)2Cl2 and Hg(MP y P z CA)(SCN)2 were obtained. These compounds have been characterized by IR and CHN analyses. The structure of [Zn(MP y P z CA)2NO3] + [(NO3)0.60(ClO4)0.40] - ·H2O has been solved by X-ray crystallography. The coordination environment around the Zn(II) may be described as a trigonal bipyramid in which the ligands are both bidentate, but coordinated differently. The coordination sphere is completed with the oxygen atom of a nitrate anion as a unidentate ligand.
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