catena-Poly[[[aqua(propane-1,3-diamine-κ2N,N′)copper(II)]-μ-fumarato-κ2O:O′] monohydrate]

Abstract

The asymmetric unit of the title compound, {[Cu(C4H2O4)(C3H10N2)(H2O)]·H2O}n, consists of two CuII atoms, half each of two propane-1,3-diamine ligands and two coordinated water molecules, all lying on crystallographic mirror planes, also one fumarate dianion and one uncoordinated water molecule in a general position. The Cu(C3H10N2)(H2O) units are linked via fumarate dianions into a zigzag chain running along the a axis. A longer Cu—O distance [2.873 (3) Å] is to a water molecule bridging equivalent CuII atoms in adjacent chains, forming a three-dimensional framework. One of the CuII atoms is in a distorted square-pyramidal environment and the other is in a pseudo-octahedral geometry of the [5+1] type. O—H...O and N—H...O hydrogen bonds are observed in the crystal structure.