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Z. Naturforsch. 2013,
68b, 155 – 160
doi:10.5560/ZNB.2013-2276
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
College of Chemistry and Chemical Engineering, Changchun University of Technology, Changchun 130012, P. R. China
Reprint requests to Prof. Qian Qiao. E-mail:
qiaoqianccut@yahoo.com.cn
Received October 16, 2012 / published online February 20, 2013
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: C34H21MnN5O5, monoclinic, space group P21/c, a = 12.484(4), b = 13.473(5), c = 16.479(3) Å, β = 99.618(6)○ , V = 2732.8(14) Å3, 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, L2− ligands link neighboring Mn(II) atoms to generate a layer structure.
Key words: Crystal Structure, Coordination Polymer, 3-Carboxy-1-(4′-(2′′-carboxy)biphenylmethyl)-2-oxidopyridinium, Pyrazino[2,3-f][1,10]phenanthroline