Date Published: September 01, 2012
Publisher: International Union of Crystallography
Author(s): Panfeng Wang, Dingding Xu, Xinqing Wang.
The title complex, [Pr(C7H5O3)2(NO3)(C12H8N2)]·2C12H8N2, has a polymeric chain structure, with two uncoordinated 1,10-phenanthroline molecules in the lattice. The PrIII centre has a monocapped square-antiprismatic coordination geometry, comprised of two N atoms from one chelating 1,10-phenanthroline ligand, four carboxylate O atoms from four 4-hydroxybenzoate anions and three O atoms from two nitrate anions. The 4-hydroxybenzoate and nitrate anions function as μ2-bridging ligands and link the PrIII ions into a one-dimensional chain structure along the c axis. Intermolecular O—H⋯N hydrogen bonds are observed between the 4-hydroxybenzoate anions and the uncoordinated 1,10-phenanthroline molecules.
For related structures, see: Zhou et al. (2008 ▶); Zhu et al. (2010 ▶)