Chemical Research in Chinese Universities ›› 2018, Vol. 34 ›› Issue (1): 8-12.doi: 10.1007/s40242-018-7259-2

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Synthesis and Characterization of [Cu(N-MeIm)4(BF4)2] in Ionic Liquid

WANG Jingyang1, ZHANG Meng1,2, XU Xiaodong2, FENG Jing2, WANG Yanli2, ZHANG Milin2, HAN Wei2, CHEN Yitung3, TIAN Guoxin1   

  1. 1. Fundamental Science on Nuclear Safety and Simulation Technology Laboratory, Harbin Engineering University, Harbin 150001, P. R. China;
    2. Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, Harbin Engineering University, Harbin 150001, P. R. China;
    3. Department of Mechanical Engineering, University of Nevada Las Vegas, Las Vegas, NV 89154-4027, USA
  • Received:2017-08-07 Online:2018-02-01 Published:2018-01-20
  • Contact: ZHANG Meng,E-mail:happymeng1980@126.com;XU Xiaodong,E-mail:xuxiaodong@hrbeu.edu.cn E-mail:happymeng1980@126.com;xuxiaodong@hrbeu.edu.cn
  • Supported by:
    Supported by the National Natural Science Foundation of China(Nos. 51104050, 51301050, 51202047), the Natural Science Foundation of Heilongjiang Province, China(No. E201413), the Technology Foundation for Selected Overseas Chinese Scholar of Heilongjiang Province, China(No. 159150130002), the Postdoctoral Scientific Research Developmental Fund of Heilongjiang Province, China(No.LBH-3236310448) and the Fundamental Research Funds for the Central Universities, China(No. GK2150260120).

Abstract: A new transition metal complex, [Cu(N-MeIm)4(BF4)2](N-MeIm=N-methylated imidazoles, BF4= tetrafluoroborate), was synthesized via the solvothermal method in ionic liquid. The ionic liquid acts as thermal decomposition reaction medium, soft temple agent and ligand compound. The central Cu(II) ion is coordinated by four N atoms from four N-methylated imidazole ligands, and the four N-methylated imidazole rings are perpendicular to each other. The crystal structure of [Cu(N-MeIm)4(BF4)2] was determined by single crystal X-ray diffraction. The results of thermogravimetry(TG) and Fourier transform infrared spectrometry(FTIR) analyses were in accordance with that of crystal structure. The complex showed strong ligand-based absorbance with maximum wavelength at 208 and 231 nm, which are attributed to π-π* transition of the N-methylated imidazole ligands.

Key words: Transition metal complex, Ionic liquid, Solvothermal method, Crystal structure, 1-Butyl-3-methylimidazo- lium tetrafluoroborate