高等学校化学学报 ›› 2023, Vol. 44 ›› Issue (11): 20230107.doi: 10.7503/cjcu20230107

• 研究论文: 无机化学 • 上一篇    

铽-磺酰基杯[4]芳烃单核配合物的单晶结构转变和发光性质

毛东骜, 徐林猛, 毕研峰()   

  1. 辽宁石油化工大学石油化工学院, 抚顺 113001
  • 收稿日期:2023-03-14 出版日期:2023-11-10 发布日期:2023-04-14
  • 通讯作者: 毕研峰 E-mail:biyanfeng@lnpu.edu.cn
  • 基金资助:
    辽宁省大学生创新创业训练计划项目(S202110148002);国家自然科学基金(91961110)

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)

摘要:

由对叔丁基-磺酰基杯[4]芳烃(H4TC4A-SO2)和Tb(CH3COO)3制备了一例单核铽-杯芳烃配位化合物 (Tb1-A). 杯芳烃能够敏化铽离子, 使Tb1-A无论固体状态还是在甲醇溶液中均能有效发光. 通过荧光滴定发 现, 1,10-菲啰啉(phen)与Tb1-A存在两种明显不同的作用模式, 并可影响其发光性能. 通过单晶结构分析表征了滴定过程中的两个单核化合物(Tb1-B和Tb1-C), 确定了phen与Tb1-A两种不同的作用模式, 其中一种作用模式是phen与稀土离子的配位作用, 另一种作用模式是phen与杯芳烃的主-客体相互作用. 两种作用模式对稀土发光的影响不同. 结合理论计算结果发现, 客体分子与杯芳烃间的主-客体相互作用是导致荧光变化的主要因素.

关键词: 稀土, 杯芳烃, 单晶结构转变, 发光性质

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

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