穴醚晶体结构及其部分镧系元素硝酸盐配合物的荧光性质  

Crystal Structure of a Cryptand and Fluorescence Properties of Its Cryptates with Part Lanthanide(Ⅲ) Nitrates

作　　者：黄勇[1] 王薇[1] 阎兰[1] 杨汝栋[1] 郁开北[2] 

机构地区：[1]兰州大学化学化工学院,兰州730000 [2]中国科学院成都分院

出　　处：《应用化学》2005年第9期1030-1032,共3页Chinese Journal of Applied Chemistry

基　　金：国家自然科学基金(29571013);教育部博士点基金(9573005)资助项目

摘　　要：The crystal structure of cryptand L was determined via X-ray diffraction analysis.Four solid(cryptates) of cryptand(L) with M(Ⅲ) nitrates(M=Sm,Eu,Tb,Dy) were prepared and characterized by means of fluorescence spectroscopy.The fluorescence properties of those complexes show that all the cryptates have stronger luminescence intensity.That the complex of Eu(Ⅲ) has the strongest luminescence intensity(among) them shows that the cryptand′s triplet state energy matches with the vibration energy level of Eu(Ⅲ).The difference between fluorescence intensities of L cryptates and other series of cryptates implies that the (energy) transfer from L is more effective in fluorescence and antenna when L has a more flexibility structure.The crystal structure of cryptand L was determined via X-ray diffraction analysis. Four solid cryptates of cryptand （L） with M （Ⅲ ） nitrates （ M = Sin, Eu, Tb, Dy） were prepared and characterized by means of fluorescence spectroscopy. The fluorescence properties of those complexes show that all the cryptates have stronger luminescence intensity. That the complex of Eu （Ⅲ ） has the strongest luminescence intensity among them shows that the cryptand＇s triplet state energy matches with the vibration energy level of Eu（ Ⅲ ）. The difference between fluorescence intensities of L cryptates and other series of cryptates implies that the energy transfer from L is more effective in fluorescence and antenna when L has a more flexibility structure.

关 键 词：穴醚 晶体结构 镧系元素硝酸盐 配合物 荧光性能 

分 类 号：O641.1[理学—物理化学] O614.3[理学—化学]