catena-Poly[[[(1,10-phenanthroline-κ(2)N,N')praseodymium(III)]-di-μ-4-hydroxy-benzoato-κ(4)O(1):O(1')-μ-nitrato-κ(3)O,O':O] bis-(1,10-phenanthroline)].

Title catena-Poly[[[(1,10-phenanthroline-κ(2)N,N')praseodymium(III)]-di-μ-4-hydroxy-benzoato-κ(4)O(1):O(1')-μ-nitrato-κ(3)O,O':O] bis-(1,10-phenanthroline)].
Authors Wang, P.; Xu, D.; Wang, X.
Journal Acta Crystallogr Sect E Struct Rep Online
DOI 10.1107/S1600536812029911

The title complex, [Pr(C(7)H(5)O(3))(2)(NO(3))(C(12)H(8)N(2))]·2C(12)H(8)N(2), has a polymeric chain structure, with two uncoordinated 1,10-phenanthroline mol-ecules in the lattice. The Pr(III) centre has a monocapped square-anti-prismatic coordination geometry, comprised of two N atoms from one chelating 1,10-phenanthroline ligand, four carboxyl-ate O atoms from four 4-hy-droxy-benzoate anions and three O atoms from two nitrate anions. The 4-hy-droxy-benzoate and nitrate anions function as μ(2)-bridging ligands and link the Pr(III) ions into a one-dimensional chain structure along the c axis. Inter-molecular O-H⋯N hydrogen bonds are observed between the 4-hy-droxy-benzoate anions and the uncoordinated 1,10-phenanthroline mol-ecules.

Citation Wang, P.; Xu, D.; Wang, X..catena-Poly[[[(1,10-phenanthroline-κ(2)N,N')praseodymium(III)]-di-μ-4-hydroxy-benzoato-κ(4)O(1):O(1')-μ-nitrato-κ(3)O,O':O] bis-(1,10-phenanthroline)]..

Related Elements


See more Praseodymium products. Praseodymium (atomic symbol: Pr, atomic number: 59) is a Block F, Group 3, Period 6 element with an atomic weight of 140.90765. Praseodymium Bohr Model The number of electrons in each of praseodymium's shells is 2, 8, 18, 21, 8, 2 and its electron configuration is [Xe]4f3 6s2. The praseodymium atom has a radius of 182 pm and a Van der Waals radius of 239 pm. Praseodymium resembles the typical trivalent rare earths, however, it will exhibit a +4 state when stabilized in a zirconia host. Elemental PraseodymiumUnlike other rare-earth metals, which show antiferromagnetic and / or ferromagnetic ordering at low temperatures, praseodymium is paramagnetic at any temperature above 1 K. Praseodymium is found in the minerals monazite and bastnasite. Praseodymium was discovered by Carl Auer von Welsbach in 1885. The origin of the element name comes from the Greek words prasios didymos, meaning green twin.