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  

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

作　　者：毛东骜 徐林猛 毕研峰 MAO Dongao;XU Linmeng;BI Yanfeng(School of Petrochemical Engineering,Liaoning Petrochemical University,Fushun 113001,China)

机构地区：[1]辽宁石油化工大学石油化工学院,抚顺113001

出　　处：《高等学校化学学报》2023年第11期1-7,共7页Chemical Journal of Chinese Universities

基　　金：辽宁省大学生创新创业训练计划项目(批准号:S202110148002);国家自然科学基金(批准号:91961110)资助。

摘　　要：由对叔丁基-磺酰基杯[4]芳烃(H_(4)TC4A-SO_(2))和Tb(CH_(3)COO)_(3)制备了一例单核铽-杯芳烃配位化合物(Tb_(1)-A).杯芳烃能够敏化铽离子,使Tb_(1)-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Tb_(1)-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(Tb_(1)-B和Tb_(1)-C),确定了phen与Tb_(1)-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.A mononuclear terbium coordination compound(Tb_(1)-A)was prepared from t-tert-butyl-sulfonylcalixarene(H_(4)TC4A-SO_(2))and Tb(CH_(3)COO)_(3).Calixarene can effectively sensitize terbium ions,enabling luminescence of Tb_(1)-A in both solid state and methanol solution.It was found that 1,10-phenanthroline(phen)could influence the luminescence of Tb_(1)-A by two interaction modes in fluorescence titration.Two different contacting modes between phen and Tb_(1)-A were also determined by the single crystal structural characterization of two mononuclear compounds(Tb_(1)-B and Tb_(1)-C),one of which was the coordination between phen and Tb ions,the other was the host-guest inter-action 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.

关 键 词：稀土 杯芳烃 单晶结构转变 发光性质 

分 类 号：O614[理学—无机化学]