Crystal structure of [3-(1H-benzimidazol-2-yl)propano-ato-κN (3)][3-(1H-benzimid-azol-2-yl)propanoic acid-κN (3)]copper(I)

In the title compound, [Cu(C10H9N2O2)(C10H10N2O2)], the Cu(I) ion is situated at a crystallographic centre of inversion and is coordinated in a linear environment by two benzimidazole N atoms from two symmetry-related 2-propanoic-1H-benzimidazole ligands. The ligands are disordered in a sense that statistically one of the carb-oxy-lic acid groups in each mol-ecule is deprotonated. In the crystal, O-H⋯O hydrogen bonds link the mol-ecules into chains along the a-axis direction. These chains are additionally linked into infinite two-dimensional networks in the ab plane by N-H⋯O hydrogen bonds.