摘要
合成了一种新型的铜离子荧光探针CPQ。探针由香豆素和8-氨基喹啉通过哌嗪桥连而成。Cu2+能够使探针CPQ的荧光发生淬灭。室温下在甲醇和水混合溶液中的紫外和荧光性质研究发现,相对于其他金属离子,探针CPQ对Cu2+具有很高的选择性,并且探针与Cu2+作用的化学计量比为1∶1,并且提出了探针分子CPQ和Cu2+相作用的可能模型。
A new coumarin-based fluorescent probe named CPQ for Cu2＋ ion has been developed. The probe is composed of cou- marin and 8-aminoquinoline linked by piperazine. The fluorescence of CPQ can be quenched by the addition of Cu2＋. The probe CPQ shows high selectivity to Cu2＋ over other metal ions in the mixture of water and methanol as solvent at ambient temperature.A 1 .. 1 stoichiometry is shown in the CPQ and Cu2＋ complex. The binding model of CPQ and Cu2＋ was also given.
出处
《中国科技论文》
CAS
北大核心
2013年第12期1298-1301,共4页
China Sciencepaper
基金
高等学校博士学科点专项科研基金资助项目(20100181120040)
