Synthesis and Characterization of a Cobalt Coordination Polymer with Bis(4-(1H-Imidazol-1-Yl)Phenyl)Methanone and 1,1′-Biphenyl-2,2′-Dicarboxylate

Abstract

A cobalt coordination polymer with the formula {[Co(bipmo)(bpa)]_n · H₂O}_n(1) (bipmo = = bis(4-(1H-imidazol-1-yl)phenyl)methanone, H₂bpa = 1,1′-biphenyl-2,2′-dicarboxylic acid) is synthesized and structurally characterized. The single crystal X-ray diffraction analysis shows that the coordination geometry of the Co(II) ion is a quite distorted octahedron. The Co1 atom is octahedrally coordinated by four O atoms from two bpa²⁻ ligands, and two N atoms from two bipmo ligands. Interestingly, adjacent Co ions are linked by bpa²⁻ bridges to generate an infinite one-dimensional coordination chain along the b axis, which are further connected by bipmo to generate two-dimension layers parallel to the (1 0 1) plane. The thermal stability of the complex are also investigated.