Chem. J. Chinese Universities ›› 2023, Vol. 44 ›› Issue (11): 20230107.doi: 10.7503/cjcu20230107

• Articles: Inorganic Chemistry • Previous Articles    

Structural Transformation and Luminescence Properties of Terbium-sulfonylcalix[4]arene Mononuclear Complexes

MAO Dongao, XU Linmeng, BI Yanfeng()   

  1. School of Petrochemical Engineering,Liaoning Petrochemical University,Fushun 113001,China
  • Received:2023-03-14 Online:2023-11-10 Published:2023-04-14
  • Contact: BI Yanfeng E-mail:biyanfeng@lnpu.edu.cn
  • Supported by:
    the Liaoning College Student Innovation and Entrepreneurship Training Program, China(S202110148002);the National Natural Science Foundation of China(91961110)

Abstract:

A mononuclear terbium coordination compound(Tb1-A) was prepared from t-tert-butyl-sulfonylcalixarene(H4TC4A-SO2) and Tb(CH3COO)3. Calixarene can effectively sensitize terbium ions, enabling luminescence of Tb1-A in both solid state and methanol solution. It was found that 1,10-phenanthroline(phen) could influence the luminescence of Tb1-A by two interaction modes in fluorescence titration. Two different contacting modes between phen and Tb1-A were also determined by the single crystal structural characterization of two mononuclear compounds(Tb1-B and Tb1-C), one of which was the coordination between phen and Tb ions, the other was the host-guest interaction between phen and calixarene. Combined with the results of theoretical calculation, it was also found that the host-guest interaction between guest molecules and calixarene was the main factor that caused the fluorescence quenching.

Key words: Rare earth, Calixarene, Crystal structure transition, Luminescence property

CLC Number: 

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