Acta Cryst. (2009). E65, m411  [ doi:10.1107/S1600536809008836 ]

catena-Poly[[[diaquathulium(III)]--6-carboxynicotinato--pyridine-2,5-dicarboxylato] dihydrate]

S. Li, Y. Chen, H.-M. He and Y.-F. Ma

Abstract: The title compound, {[Tm(C₇H₃NO₄)(C₇H₄NO₄)(H₂O)₂]·2H₂O}_n, is isotypic with the analogous Tb^III compound [Li et al. (2009). Acta Cryst. E65, m410]. All interatomic distances and angles and the hydrogen-bond geometries are very similar for the two structures. The refined Flack parameter of 0.49 (2) suggests inversion twinning.

Online 19 March 2009

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