title: Catena-poly[bis[aqua(2,2-bipyridine-kappa 2N,N')cobalt(II)]-mu-1,2,4,5-benzenetetracarboxylato-kappa 4O1:O2:O3:O4].
abstract: In the title complex, [Co(2)(C(10)H(2)O(8))(C(10)H(8)N(2))(2)(H(2)O)(2)], the four carboxylate groups are fully deprotonated and coordinate to four Co(II) cations in a monodentate fashion, forming a one-dimensional ribbon-like double-chain structure, with centrosymmetric [Co(2)(C(10)H(2)O(8))(C(10)H(8)N(2))(2)(H(2)O)(2)] repeating units and a cavity of approximately 6.8 x 6.6 A. Moreover, a three-dimensional supramolecular structure is formed by face-to-face pi-pi interactions between the aromatic rings of the 2,2'-bipyridine moieties of two adjacent chains, and by hydrogen-bonding interactions between the coordinated aqua O atom and the coordinated carboxyl O atom from different chains.
authors.affiliation: Department of Chemistry and Materials Science, Wenzhou Normal College, Wenzhou 325027, People's Republic of China. xhpch@163.com
authors.forename: Hong-Ping
authors.initials: HP
authors.lastname: Xiao
authors.forename: Ma-Lin
authors.initials: ML
authors.lastname: Hu
authors.forename: Qian
authors.initials: Q
authors.lastname: Shi
authors.forename: Xin-Hua
authors.initials: XH
authors.lastname: Li