Chinese Journal of Applied Chemistry ›› 2019, Vol. 36 ›› Issue (4): 459-464.DOI: 10.11944/j.issn.1000-0518.2019.04.180264

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Synthesis, Crystal Structure and Recognition Properties of One-Dimensional Luminescent Cd Coordination Polymer

TANG Jinga,LIN Xiaoyib,ZHOU Wenyanc,HUANG Qiuyinga*()   

  1. aDepartment of Chemical Engineering,He'nan Polytechnic Institute,Nanyang,He'nan 473009,China
    bDepartment of Chemical Engineering,Dalian University of Technology,Dalian,Liaoning 116024,China
    cCollege of Chemistry and Molecular Engineering,Zhengzhou University,Zhengzhou, 450001,China
  • Received:2018-08-14 Accepted:2018-10-26 Published:2019-04-01 Online:2019-04-02
  • Contact: HUANG Qiuying
  • Supported by:
    Supported by the National Natural Science Foundation of China(No.J1210060), the Henan Province Foundation and Advanced Technology Research Project(No.162300410206), the Foundation of Henan Educational Committee(No.16B150002)

Abstract:

By reaction of an aryl substituted imidazole dicarboxylate ligand 2-(4-cyanophenyl)-1H-imidazole-4,5-dicarboxylic acid(p-CNPhH3IDC) with cadmium nitrate, in the presence of N-containing chelate ligand, 2,2'-bipyridine(2,2'-bipy), a one-dimensional chain-like coordination polymer, [Cd(p-CNPhHIDC)(2,2'-bipy)]n(1) with mixed ligands was prepared hydrothermally. The structure and properties of the coordination polymer were studied by elemental analysis, Fourier transform infrared spectrometer and single crystal X-ray diffraction. The results show that the coordination polymer has good thermal stability under 231.6 ℃. After being soaked in acetonitrile, methanol, acetaldehyde and other solvents, the fluorescence intensity of coordination polymer 1 was weakened(aldehyde, CH2Cl2) or enhanced(DMF, nitrobenzene and acetone) to a certain extent. A 60 nm blue shift in its fluorescence emission, in pyridine indicated a good identification effect on pyridine by this polymer.

Key words: Cd-polymer, imidazole dicarboxylate, crystal structure, recognition properties