Selective and Sensitive Fluorescent Chemosensors for Cu2＋ Ion Based upon Bis-1,8-naphthalimide Dyads  

作　　者：Dai,Huiling Xu,Hui 

机构地区：[1]Laboratory of Pharmaceutical Design&Synthesis,College of Science,Northwest Agrieulture&Forestry University,Yangling,Shaanxi 712100,China

出　　处：《Chinese Journal of Chemistry》2012年第2期267-272,共6页中国化学（英文版）

摘　　要：A series of new fluorescent chemosensors 5a--5e, composed of two aminonaphthalimide fluorophores and 2,6-bis（（N-aminoalkyl）aminocarboxy）pyridines, were prepared, characterized, and their fluorescent properties to- wards heavy and transition metal （HTM） ions were investigated. Chemosensors 5e--Se exhibited high selectivity and sensitivity for Cu2＋ ion over other HTM ions with fluorescent quenching （green to colourless）. It clearly demonstrated that the length of the linkers （diamines） between the aminonaphthalimides and 2,6-dicarboxypyridine of 5a--Se was very important for their sensitivity and selectivity for Cu2~ ion over other HTM ions.A series of new fluorescent chemosensors 5a--5e, composed of two aminonaphthalimide fluorophores and 2,6-bis（（N-aminoalkyl）aminocarboxy）pyridines, were prepared, characterized, and their fluorescent properties to- wards heavy and transition metal （HTM） ions were investigated. Chemosensors 5e--Se exhibited high selectivity and sensitivity for Cu2＋ ion over other HTM ions with fluorescent quenching （green to colourless）. It clearly demonstrated that the length of the linkers （diamines） between the aminonaphthalimides and 2,6-dicarboxypyridine of 5a--Se was very important for their sensitivity and selectivity for Cu2~ ion over other HTM ions.

关 键 词：fluorescence sensors 1 8-NAPHTHALIMIDE metal ion SELECTIVITY 

分 类 号：O614.121[理学—无机化学] TP212.2[理学—化学]