Chinese Journal of Applied Chemistry ›› 2017, Vol. 34 ›› Issue (9): 1093-1098.DOI: 10.11944/j.issn.1000-0518.2017.09.170060

• Full Papers • Previous Articles    

Synthesis, Structure and Molecule Recognition Properties of a New Wave-Shaped Chain Cadmium Complex

HUANG Qiuyinga*(),LIN Xiaoyib,WANG Yonga,ZHU Yongchaoc   

  1. aDepartment of Chemical Engineering,He'nan Polytechnic Institute,Nanyang,He'nan 473009,China
    bNo.1 Middle School of Nanyang,Nanyang,He'nan 473000,China
    cCollege of Chemistry and Molecular Engineering,Zhengzhou University,Zhengzhou 450001,China
  • Received:2017-03-07 Accepted:2017-07-18 Published:2017-08-31 Online:2017-08-31
  • Contact: HUANG Qiuying
  • Supported by:
    Supported by the National Natural Science Foundation of China(No.J1210060), Henan Science and Technology Project(No.172102210128)

Abstract:

By the hydrothermal reaction of Cd(NO3)2·4H2O with 2-(2-bromophenyl)-1H-imidazole-4,5-dicarboxylic acid(o-BrPhH3IDC) and ammonium oxalate, a new wave-shaped chain complex {[Cd(o-BrPhH2IDC)2(H2O)]·H2O}n(1) was synthesized and characterized through elemental analysis, Fourier transform infrared spectrometer, thermogravimetric and single crystal X-ray diffraction analysis. The results show that complex 1 crystallizes in the orthorhombic space group Pbca. Excited by the wavelength of 316 nm, complex 1 shows the maximum fluorescence emission peak around 356 nm. Further experiments show that acetonitrile significantly increases the fluorescence intensity of complex 1, and methanol and ethanol may decrease the fluorescence intensity. If complex 1 is treated with pyridine, the fluorescence emission peak of complex 1 disappears, which indicates selective recognition for pyridine.

Key words: Cd-complex, imidazole dicarboxylic acid, crystal structure, fluorescence properties, small molecule recognition