Chemical Research in Chinese Universities ›› 2004, Vol. 20 ›› Issue (3): 338-340.

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Synthesis and Structure of Manganese Coordinated Polymer with Regular X-shaped Cavity

MA Dong-sheng, Gao Shan, HUO Li-hua, GAO Jing-sheng, SUN Zhi-zhong   

  1. College of Chemistry and Chemical Engineering, Heilongjiang University, Harbin 150080, P. R. China
  • Received:2003-01-02 Online:2004-06-24 Published:2011-08-06
  • Supported by:

    Supported by the Natural Science Foundation of Heilongjiang Province(No.B00-07), the Fund of Ministry of Education of Heilongjiang Province and the Scientific Foundation of Remarkable Youths of Heilongjiang University.

Abstract: A coordination polymer [Mn(IDA)2(H2O)4]n(H2IDA=N-iminodiacetic acid) was synthesized and characterized by single crystal X-ray diffraction. The crystal belongs to the tetragonal system, the space group is P-421C with the crystal cell parameters a=0.81120(8) nm, b=0.81120(8) nm, c=0.96196(4) nm, V=0.6330(1) nm3, Mr=355.17, R=0.0224, wR=0.061. The four carboxylic oxygen atoms of the different N-iminodiacetic acid ligands and two water molecules coordinate to the manganese atom. The manganese atom is in an approximates octahedral coordination sphere. Each carboxylic acid ligand bridges two manganese atoms, forming two zig-zag supramolecular chains. The twisted chains construct a two-dimension layer structure with regularly arranged X-shaped window cavity. The three-dimension supramolecular network is formed by coordination bonds and hydrogen bonds.

Key words: Coordination polymer, Synthesis, Crystal structure