A Novel 2D Mn(II) Coordination Polymer Based on the New Flexible 3-Carboxy-1-(4'-(2''-carboxy)biphenylmethyl)-2-oxidopyridinium and the Pyrazino[2,3-f][1,10]phenanthroline Ligands

摘要

A novel 2D coordination polymer, [Mn(pyphen)(L)] (1) (L=3-carboxy-1-(4'-(2''- carboxy)biphenylmethyl)-2-oxidopyridinium and pyphen=pyrazino[2,3- f][1,10]phenanthroline), has been synthesized under hydrothermal conditions, and characterized by elemental analysis, IR, UV=Vis spectra and its optical band gap. Crystal data for 1: C_(34)H_(21)MnN_5O_5, monoclinic, space group P2_1=c, a=12.484(4), b=13.473(5), c=16.479(3) ?, b =99.618(6)°, V =2732.8(14) ?~3, Z =4. In 1, each L ligand coordinates to three Mn(II) atoms through its two carboxylate groups and one phenolate unit. In this way, L~(2-) ligands link neighboring Mn(II) atoms to generate a layer structure.