Acta Cryst. (2012). E68, m1148
[ doi:10.1107/S1600536812029911 ]
Abstract: 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 2-bridging ligands and link the PrIII ions into a one-dimensional chain structure along the c axis. Intermolecular O-HN hydrogen bonds are observed between the 4-hydroxybenzoate anions and the uncoordinated 1,10-phenanthroline molecules.
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