Research Article: catena-Poly[[[triaqua­cobalt(II)]-μ-10-methyl­phenothia­zine-3,7-dicarboxyl­ato] monohydrate]

Date Published: April 01, 2012

Publisher: International Union of Crystallography

Author(s): Yun-Xia Hu, Yan Zhou, Fang-Ming Wang, Wen-Wei Zhang.


The polymeric title compound, {[Co(C15H9NO4S)(H2O)3]·H2O}n, consists of chains along [001] made up from Co2+ ions bridged by 10-methyl­phenothia­zine-3,7-dicarboxyl­ate anions. The Co2+ ion, coordinated by three O atoms from two different carboxyl­ate groups and three water mol­ecules, displays a distorted octa­hedral environment. In the crystal, π–π inter­chain inter­actions, with centroid–centroid distances of 3.656 (2) and 3.669 (2) Å between the benzene rings of the ligands, assemble the chains into sheets parallel to (100). O—H⋯O hydrogen-bonding inter­actions between the coordinating water mol­ecules and carboxyl­ate O atoms link the sheets into a three-dimensional network.

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For background to phenothia­zine as a pharmacophore, see: Albery et al. (1979 ▶); Tsakovska & Pajeva (2006 ▶). For compounds with organic framework structures and with electro-optic or electronic properties, see: Chakraborty et al. (2005 ▶); Cho et al. (2006 ▶); Park et al. (2008 ▶); Krämer et al. (2001 ▶); Zhang et al. (2007 ▶). For structure elucidation, see: Spek (2009 ▶).