Catena-Poly[[cobalt(II)-μ-[N,N′-1,3-bis(imidazol-1-ylmethyl)benzene]-κ2 N 3:N 3′-μ-(5-carboxybenzene-1,3-dicarboxylato)-κ2 O 1:O 3] monohydrate

Abstract

The title CoII coordination polymer, {[Co(C9H4O6)(C14H14N4)]·H2O} n , was obtained by reaction of Co(NO3)2·6H2O, benzene-1,3,5-tricarboxylic acid (H3BTC) and 1,3-bis(imidazol-1-ylmethyl)benzene (L). Each CoII cation is four-coordinated by an O2N2 donor set in a distorted tetrahedral geometry. The CoII centers are connected into a one-dimensional double-stranded chain by HBTC anions and L ligands. The chains are further connected through hydrogen-bonding interactions between the hydroxyl groups of adjacent HBTC anions and face-to-face π–π interactions between the benzene rings of adjacent L ligands [average face-to-face distance of 3.427 (3) Å], resulting in the formation of a three-dimensional supramolecular structure.