Acta Cryst. (2008). E64, m303-m304  [ doi:10.1107/S1600536808000160 ]

catena-Poly[[[aqua(propane-1,3-diamine-²N,N')copper(II)]--fumarato-²O:O'] monohydrate]

M. Padmanabhan, J. C. Joseph, S. Olsson and M. Bakir

Abstract: The asymmetric unit of the title compound, {[Cu(C₄H₂O₄)(C₃H₁₀N₂)(H₂O)]·H₂O}_n, consists of two Cu^II 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 Cu^II atoms in adjacent chains, forming a three-dimensional framework. One of the Cu^II atoms is in a distorted square-pyramidal environment and the other is in a pseudo-octahedral geometry of the [5+1] type. O-HO and N-HO hydrogen bonds are observed in the crystal structure.

Online 9 January 2008

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