Acta Cryst. (2006). E62, m480-m482  [ doi:10.1107/S1600536806004491 ]

Poly[[aqua(₄-1,4-cyclohexanedicarboxylato)praseodymium(III)] hemihydrate]

G.-B. Che, C.-B. Liu, H. Liu and B. Liu

Abstract: In the title compound, {[Pr(C₁₂H₁₅O₆)(H₂O)]·0.5H₂O}_n, the central praseodymium(III) cation is nine-coordinated by O atoms from six different chdc^2- ligands (chdc^2- is the 1,4-cyclohexanedicarboxylate dianion) and one terminal water molecule. An interesting feature of the compound is the presence of two strands of cis-chdc^2- ligands wrapped around each other, held together by praseodymium(III) cations to form a double-stranded chain. trans-Chdc^2- ligands further bridge adjacent double-stranded chains to yield a three-dimensional framework.

Online 10 February 2006

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