Crystal structure of bis-[2-(1 H-benzimidazol-2-yl-κ N 3)aniline-κ N]bis-(nitrato-κ O)cadmium(II)

Abstract

In the title compound, [Cd(NO₃)₂(C₁₃H₁₁N₃)₂], the Cd^II atom lies on a twofold rotation axis and is coordinated by four N atoms and two O atoms, provided by two bidentate 2-(1H-benzimidazol-2-yl)aniline ligands, and two nitrato O atoms, forming a distorted octa-hedral geometry [range of bond angles around the Cd atom = 73.82 (2)-106.95 (8)°]. In the ligand, the dihedral angle between the aniline ring and the benzimidazole ring system is 30.43 (7)°. The discrete complex mol-ecule is stabilized by an intra-molecular N-H⋯O hydrogen bond. In the crystal, inter-molecular N-H⋯O hydrogen bonds link the mol-ecules, forming a three-dimensional network.

Keywords: CdIIN-heterocyclic complex; N—H⋯O hydrogen bonds; benzimidazole; crystal structure.