title: A new trinuclear cobalt(II) complex: decaaqua-1kappa3O,2kappa4O,3kappa3O-bis(benzene-1,3,5-tricarboxylato)-1kappaO,3kappaO-di-mu-4,4'-bipyridine-1:2kappa2N:N';2:3kappa2N:N'-di-4,4'-bipyridine-1kappaN,3kappaN-tricobalt(II) 4,4'-bipyridine solvate octahydrate.
abstract: The principal building units in the title compound, [Co3(C9H3O6)2(C10H8N2)4(H2O)10].C10H8N2.8H2O, are the linear centrosymmetric tricobalt(II) complex molecules resulting from two square-pyramidal [Co(btc)(bpy)(H2O)3]- entities (bpy is 4,4'-bipyridine and btc is the benzene-1,3,5-tricarboxylate trianion) bridged by one trans-[Co(bpy)2(H2O)4]2+ unit. The trinuclear complex molecules are assembled into infinite chains through intermolecular O-H...N hydrogen bonds and pi-pi stacking interactions between adjacent monodentate bpy ligands. The chains and uncoordinated bpy molecules are further assembled into two-dimensional open layers, which are stacked in a staggered manner to give a three-dimensional supramolecular architecture with the solvent water molecules in the cavities.
authors.affiliation: State Key Laboratory Base of Novel Functional Materials and Preparation Science, Faculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, People's Republic of China.
authors.forename: Hong Zhen
authors.initials: HZ
authors.lastname: Xie
authors.forename: Zhi Feng
authors.initials: ZF
authors.lastname: Li
authors.forename: Yue Qing
authors.initials: YQ
authors.lastname: Zheng