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1.
Acta Crystallogr Sect E Struct Rep Online ; 64(Pt 11): m1475, 2008 Oct 31.
Artigo em Inglês | MEDLINE | ID: mdl-21580909

RESUMO

In the title compound, [Cu(C(8)H(7)O(2))(C(12)H(8)N(2))(2)](C(8)H(7)O(2))·6H(2)O, the Cu atom is in a distorted square-pyramidal coordination environment. The six crystallographically independent uncoordinated water mol-ecules are inter-connected by hydrogen bonds, completing dodeca-water (H(2)O)(12) clusters which are hydrogen bonded to the carboxyl-ate groups of phenyl-acetate anions, building up one-dimensional anionic chains propagating along [100]. Between the cationic and anionic chains are hydrogen bonds from water mol-ecules to the carboxyl-ate O atoms belonging to the phenyl-acetato ligands.

2.
Acta Crystallogr Sect E Struct Rep Online ; 64(Pt 1): m228-9, 2007 Dec 21.
Artigo em Inglês | MEDLINE | ID: mdl-21200574

RESUMO

In the title compound, [Cu(C(4)H(2)BrO(4))(2)(C(6)H(6)N(4))(2)], the central Cu(II) atom lies on an inversion center and is six-coordinated in an octahedral geometry by four N atoms from two chelating biimidazole mol-ecules in the equatorial plane and two O atoms from two 2-bromo-fumarate ligands in the axial positions. O-H⋯O, N-H⋯O and C-H⋯O hydrogen bonds lead to a three-dimensional network.

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