摘要
应用荧光物质的激发光谱和发射光谱对九种芳香单酮与稀土离子（Ｅｕ￣（３＋），Ｔｂ￣（３＋）间的能量转移进行了研究，并探讨了能量关系、苯环上猝灭取代基团及空间效应对能量转移的影响。
The intermolecular energy transfer from nice aromatic monoketones to rare earthions(Eu￣(3+),Tb￣(3+))in acetone solution were investigated using fluorescence excitation and e-mission spectroscopies. The lowest triplet of aromatic monotonies must be higher than the excited state of rareearth ions if the energy transfer takes place. The energy dependence is a necessary condition.But other factors such as the nature of the substituent attached to the benzene,the steric ef-fect will greatly influence the efficiency and tlie occurence of energy transfer.This transfer isrealized by means of collision‘q due to some stable chelate in general.
出处
《吉林大学自然科学学报》
CAS
CSCD
1994年第3期89-94,共6页
Acta Scientiarum Naturalium Universitatis Jilinensis
关键词
能量转移
稀土离子
芳酮
荧光光谱
rare earth compiexes,sensitized fluorescence,energy transfer
