Acta Cryst. (2005). E61, m2548-m2549  [ doi:10.1107/S1600536805036081 ]

Poly[diaqua(₆-benzene-1,2,4,5-tetracarboxylato)(₆-2,5-dicarboxybenzene-1,4-dicarboxylato)disamarium]

Y.-M. Dai, X.-Q. Wang and J.-F. Huang

Abstract: The title compound, [Sm₂(C₁₀H₂O₈)(C₁₀H₄O₈)(H₂O)₂]_n or [Sm₂(btec)(H₂btec)(H₂O)₂]_n, was synthesized hydrothermally by the reaction of Sm₂O₃ with 1,2,4,5-benzenetetracarboxylic acid (H₄btec). The Sm atom is coordinated by nine O atoms, three from H₂btec^2-, five from btec^4- and one from a coordinated water molecule. Sm-O distances range from 2.376 (3) to 2.558 (5) Å.

Online 10 November 2005

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