Selective and Sensitive Fluorescent Chemosensors for Cu2+ Ion Based upon Bis-1,8-naphthalimide Dyads
作者:Huiling Dai、Hui Xu
DOI:10.1002/cjoc.201180481
日期:2012.2
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 towards heavy and transition metal (HTM) ions were investigated. Chemosensors 5c–5e exhibited high selectivity and sensitivity for Cu2+ ion over other HTM ions with fluorescent quenching (green
制备,表征了一系列新型荧光化学传感器5a - 5e,该传感器由两个氨基萘二甲酰亚胺荧光团和2,6-双((N-氨基烷基)氨基羧基)吡啶组成,并表征了它们对重金属和过渡金属(HTM)离子的荧光特性。调查。化学传感器5c – 5e对Cu 2+离子具有其他选择性,对其他具有荧光猝灭作用(绿色至无色)的HTM离子具有较高的灵敏度。它清楚地表明,氨基萘二甲酰亚胺和5a - 5e的2,6-二羧基吡啶之间的连接基(二胺)的长度对于它们对Cu 2+的敏感性和选择性非常重要。 离子超过其他HTM离子。