title: Bis(μ-3-nitro-phthalato-κO:O)bis-[(thio-urea-κS)zinc] dihydrate.
abstract: In the title complex, [Zn(2)(C(8)H(3)NO(6))(2)(CH(4)N(2)S)(4)]·2H(2)O, the carboxyl-ate groups of the 3-nitro-phthalate ligands coordinate in a bis-monodentate mode to the Zn(II) cations. This results in the formation of a centrosymmetric dimer containing two Zn(II) cations with distorted tetra-hedral geometries provided by the O atoms of two different 3-nitro-phthalate dianions and the S atoms of two non-equivalent coordinated thio-urea mol-ecules. The crystal structure exhibits N-H⋯O and O-H⋯O hydrogen bonds which link the dimers into a three-dimensional network.
authors.affiliation: School of Environment and Chemical Engineering, and Key Laboratory of Hollow Fiber Membrane Materials and Membrane Process, Tianjin Polytechnic University, Tianjin 300387,  People's Republic of China.
authors.forename: Hui-Peng
authors.initials: HP
authors.lastname: Gao
authors.forename: Ming-Lin
authors.initials: ML
authors.lastname: Guo