The structure of dichloro(L-histidine)copper(II)

Abstract

The structure of the orthorhombic form of the title compound has been determined by X-ray crystallography. The space group was found to be P2₁2₁2₁ (No.19,D₂⁴ = V⁴) with a 10.01(5), b 5.944(6), c 17.5469(7) Å and Z 4. The structure was refined by least squares to R 0.0614. It consists of chains of molecules with the carboxy oxygen atom, the amino nitrogen atom and the two chlorine atoms forming an approximate square plane about the copper atom, with two bridging chlorine atoms from two adjacent molecules completing a distorted octahedron. Extensive hydrogen bonding links the chains together.