Diaqua-bis-(nitrato-κ(2)O,O')bis-(pyrazine-2-carboxamide-κN(4))cadmium-pyrazine-2-carboxamide (1/2).
作者信息
Shirvan Sadif A, Haydari Dezfuli Sara
机构信息
Department of Chemistry, Omidieh Branch, Islamic Azad University, Omidieh, Iran.
出版信息
Acta Crystallogr Sect E Struct Rep Online. 2012 Jul 1;68(Pt 7):m1008-9. doi: 10.1107/S1600536812028577. Epub 2012 Jun 30.
Abstract
In the title compound, [Cd(NO(3))(2)(C(5)H(5)N(3)O)(2)(H(2)O)(2)]·2C(5)H(5)N(3)O, the Cd(II) cation is located on a twofold rotation axis and is coordinated by two pyrazine-2-carboxamide ligands and two water mol-ecules and chelated by two nitrate anions in a distorted square-anti-prismatic geometry. Extensive inter-molecular N-H⋯O, N-H⋯N, O-H⋯O and O-H⋯N hydrogen bonds, as well as weak inter-molecular C-H⋯N and C-H⋯O inter-actions occur in the crystal. π-π stacking between between pyrazine rings of coordinating ligands and lattice molecules [centroid-centroid distance = 3.5669 (14) Å] may further stabilize the structure.
摘要
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