A new three-dimensional cobalt(II) coordination polymer with a 4-connected CdSO4-like topology

• Published in: Acta crystallographica. Section C, Crystal structure communications Vol. 65; no. 8; pp. m273 - m275
• Main Authors: Xu, Zhan-Lin, Kong, Zhi-Guo, Sun, Shu-Bo, Wang, Xiu-Yan
• Format: Journal Article
• Language: English
• Published: 5 Abbey Square, Chester, Cheshire CH1 2HU, England International Union of Crystallography 01.08.2009; Wiley Subscription Services, Inc
• Subjects: Cobalt; Crystal structure; Crystallography; Geometry; Polymers
• ISSN: 0108-2701; 1600-5759
• DOI: 10.1107/S010827010902438X

The title cobalt(II) coordination polymer, poly[[diaquacobalt(II)]‐μ4‐3,3′‐(p‐phenylene)diacrylato], [Co(C12H8O4)(H2O)2]n, was obtained by reaction of Co(NO3)2·6H2O and 3,3′‐(p‐phenylene)diacrylic acid (H2L) under hydrothermal conditions. Each CoII cation sits on a centre of inversion and is hexacoordinated by six O‐atom donors in an octahedral geometry. The CoII centres are connected by four centrosymmetric L2− anions, resulting in a three‐dimensional framework structure. The coordinated water molecules and carboxylate O atoms form hydrogen‐bond interactions, stabilizing the structure of the three‐dimensional framework. Topologically, the framework represents a rare example of the three‐dimensional 4‐connected CdSO4 network type. The metal cations and the organic ligand both show in‐plane coordination with respect to the extended structure.