Crystal structure of aqua(1H-pyrazole-κN 2)(pyridine-2,6-dicarboxylato-κ3 O 2,N,O 6)copper(II) dihydrate
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چکیده
In the title compound, [Cu(C7H3NO4)(C3H4N2)(H2O)]·2H2O, the CuII atom is coordinated by three O atoms and two N atoms, provided by a tridentate pyridine-2,6-di-carboxyl-ate (pdc), one pyrazole and one water ligand, forming a slightly distorted square-pyramidal geometry [range of O-Cu-O and O-Cu-N bond angles = 79.55 (8)-166.22 (10)°]. The water mol-ecule is positioned at the apical position. In the crystal, the complex mol-ecule and the two crystallographically independent non-coordinating water mol-ecules are linked into a supra-molecular layer structure parallel to the ab plane via O-H⋯O and N-H⋯O hydrogen bonds.
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Bis(3,5-dimethyl-1H-pyrazole-κN 2)(pyridine-2,6-dicarboxylato-κ3 O 2,N,O 6)copper(II)
In the crystal structure of the title compound, [Cu(C(7)H(3)NO(4))(C(5)H(8)N(2))(2)], the Cu(II) cation assumes a distorted trigonal-bipyramidal coordination geometry formed by a pyridine-2,6-dicarboxyl-ate dianion and two 3,5-dimethyl-1H-pyrazole mol-ecules. N-H⋯O hydrogen bonding is present in the crystal structure.
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