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Poly[?-aqua-diaquabis-[?-2-cyano-2-(oxidoimino)-acetato]-copper(II)dipotassium].

ABSTRACT: In the title compound, [CuK(2)(C(3)N(2)O(3))(2)(H(2)O)(3)](n), the Cu(2+) atom is in a distorted square-pyramidal coordination geometry. Two N atoms belonging to the oxime groups and two O atoms belonging to the carboxyl-ate groups of two trans-disposed doubly deprotonated residues of 2-cyano-2-(hy-droxy-imino)-acetic acid make up the basal plane and the apical position is occupied by the water mol-ecule. The neighboring Cu-containing moieties are linked into a three-dimensional framework by K-O and K-N contacts formed by two potassium cations with the carboxyl-ate and the oxime O atoms and the nitrile N atoms of the ligand. The environments of the K(+) cations are complemented to octa- and nona-coordinated, by K-O contacts with H(2)O mol-ecules. The crystal structure features O-H?O hydrogen bonds.

SUBMITTER: Golenya IA

PROVIDER: S-EPMC3470173 | biostudies-literature | 2012 Oct

REPOSITORIES: biostudies-literature

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Poly[μ-aqua-diaquabis-[μ-2-cyano-2-(oxidoimino)-acetato]-copper(II)dipotassium].

Golenya Irina A IA Izotova Yulia A YA Usenko Natalia I NI Kalibabchuk Valentina A VA Kotova Natalia V NV

Acta crystallographica. Section E, Structure reports online 20120926 Pt 10

In the title compound, [CuK(2)(C(3)N(2)O(3))(2)(H(2)O)(3)](n), the Cu(2+) atom is in a distorted square-pyramidal coordination geometry. Two N atoms belonging to the oxime groups and two O atoms belonging to the carboxyl-ate groups of two trans-disposed doubly deprotonated residues of 2-cyano-2-(hy-droxy-imino)-acetic acid make up the basal plane and the apical position is occupied by the water mol-ecule. The neighboring Cu-containing moieties are linked into a three-dimensional framework by K-O ...[more]

PMID: 23125617

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