title: Poly[mu(8)-4,4'-bipyridine-2,2',6,6'-tetracarboxylato-dilead(II)].
abstract: The Pb(II) cation in the title compound, [Pb(2)(C(14)H(4)N(2)O(8))](n), is seven-coordinated by one N atom and six O atoms from four 4,4'-bipyridine-2,2',6,6'-tetracarboxylate (BPTCA(4-)) ligands. The geometric centre of the BPTCA(4-) anion lies on an inversion centre. Each pyridine-2,6-dicarboxylate moiety of the BPTCA(4-) ligand links four Pb(II) cations via its pyridyl N atom and two carboxylate groups to form two-dimensional sheets. The centrosymmetric BPTCA(4-) ligand then acts as a linker between the sheets, which results in a three-dimensional metal-organic framework.
authors.affiliation: College of Chemistry and Chemical Engineering, Guangxi Normal University, Yucai Road 15, Guilin 541004, People's Republic of China.
authors.forename: Su Ping
authors.initials: SP
authors.lastname: Zhou
authors.forename: Xu Xian
authors.initials: XX
authors.lastname: Wu
authors.forename: Chao
authors.initials: C
authors.lastname: Zu
authors.forename: Zi Lu
authors.initials: ZL
authors.lastname: Chen
authors.forename: Fu Pei
authors.initials: FP
authors.lastname: Liang