pubmed-article:21202206 | pubmed:abstractText | In the title compound, {[Zn(C(10)H(8)N(2))(H(2)O)(4)](C(4)H(2)O(4))·4H(2)O}(n), the Zn(II) atom is coordinated by two N atoms from two ?-4,4'-bipyridine ligands and four water mol-ecules in a distorted octa-hedral geometry. The coordination unit is extended through the Zn-N bond, leading to a one-dimensional cationic chain. A twofold rotation axis passes through the Zn atom and along the axis of the 4,4'-bipyridine ligand. Each uncoordinated water mol-ecule acts as both hydrogen-bond donor and acceptor. A three-dimensional network is constructed through hydrogen bonds involving water mol-ecules and fumarate dianions. | lld:pubmed |