Acta Crystallographica Section E (Dec 2009)
catena-Poly[diaquatris(μ3-biphenyl-2,2-dicarboxylato)disamarium(III)]
Abstract
The title compound, [Sm2(C14H8O4)3(H2O)2]n, is composed of one-dimensional chains and is isostructural with previously reported compounds [Wang et al. (2003). Eur. J. Inorg. Chem. pp. 1355–1360]. The asymmetric unit contains two Sm atoms, each of which lies on a crystallographic twofold axis. Both crystallographically independent Sm atoms are coordinated by eight O atoms in a distorted dodecahedral arrangement. The polymeric chains run along [001]. Adjacent chains are connected through π–π interactions [centroid–centroid distance = 3.450 (2) Å], forming a two-dimensional supramolecular network.