Research Article: catena-Poly[[[aqua­[3-(3-hy­droxy­phen­yl)prop-2-enoato]samarium(III)]-bis­[μ2-3-(3-hy­droxy­phen­yl)prop-2-enoato]] monohydrate]

Date Published: May 01, 2012

Publisher: International Union of Crystallography

Author(s): Jing-ke Guo, Yi-Hang Wen.


The title SmIII compound, {[Sm(C9H7O3)3(H2O)]·H2O}n, was obtained under hydrothermal conditions. Its structure is isotypic with the analogous Eu complex. The latter was reported incorrectly in space group P1 by Yan et al. [J. Mol. Struct. (2008), 891, 298–304]. This was corrected by Marsh [Acta Cryst. B65, 782–783] to P-1. The SmIII ion is nine-coordinated by O atoms from one coordinating water molecule and the remaining ones from the 3-(3-hy­droxy­phen­yl)prop-2-enoatate anions (one bidentate, two bidentate and bridging, two monodentate bridging), leading to a distorted tricapped trigonal–prismatic coordination polyhedron surrounded by solvent water mol­ecules. In the crystal, extensive intermolecular O—H⋯O hydrogen-bonding inter­actions and π–π inter­actions [centroid–centroid separation = 3.9393 (1) Å] lead to the formation of a three-dimensional supra­molecular network.

Partial Text

For the isotypic Eu structure, see: Yan et al. (2008 ▶) and for the corrected space-group assignment, see: Marsh (2009 ▶). For related structures, see: Niu et al. (2008 ▶); Tang et al. (2009 ▶); Wang & Feng (2010 ▶); Xue et al. (2007 ▶); Ye et al. (2005 ▶).