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Acta Cryst. (2007). E63, i102-i104 [ doi:10.1107/S1600536806043510 ]
Abstract: In the title compound, (Ba0.741Sr0.259)C2O4 or C2Ba0.741O4Sr0.259, the asymmetric unit consists of one disordered barium/strontium ion lying on a crystallographic twofold rotation axis and half of a centrosymmetric oxalate ion (one C and two O atoms). The crystal structure can be described as double parallel zigzag chains runnning along the c axis and linked together by additional monodentate oxalate-metal bonding. The distance between two chains is b/2. Each metal ion has six O-atom neighbours and they are linked together via the different coordination modes of the oxalate groups, resulting in the formation of a three-dimensional network.
Online 14 March 2007
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