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Acta Cryst. (2012). E68, m1148
[ doi:10.1107/S1600536812029911 ]

catena-Poly[[[(1,10-phenanthroline-[kappa]2N,N')praseodymium(III)]-di-[mu]-4-hydroxybenzoato-[kappa]4O1:O1'-[mu]-nitrato-[kappa]3O,O':O] bis(1,10-phenanthroline)]

P. Wang, D. Xu and X. Wang

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 [mu]2-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.

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