Date Published: June 01, 2010
Publisher: International Union of Crystallography
Author(s): Jin-Sheng Gao, Xue Wang, Zhi-Yong Ding, Guang-Feng Hou.
In the title compound, [Co(NO3)2(C20H18N4)]n, the CoII atom lies on a crystallographic twofold axis and the coordination geometry can be considered as a slightly distorted tetrahedron defined by two O atoms from two nitrate groups and two N atoms from two ligand molecules. A distorted octahedron may be assumed when two of the symmetry-related nitrate O atoms with Co—O distances of 2.3449 (19) Å are added to the coordination environment. Another twofold axis, passing through the middle of the biphenyl bonds, is observed in the crystal structure. A chain is built up by the ligands linking the CoII ions along .
For a related polymeric bis(pyrazole) dinitratocobalt(II) structure, see: Chen et al. (1997 ▶). For the isotypic Zn structure, see: Wang et al. (2010 ▶). For the synthesis and structure of a three-dimensional polymeric Zn(II) network compound, see: Zhu et al. (2002 ▶).