摘要:
New fluorescent hexylaminoalkylamidonaphthalimides were synthesized and their fluorescence was investigated in different solvents. The fluorescence intensity of hexylaminoalkylamidonaphthalimides is directly related to the number of carbons in the intervening chain between the naphthalimide and n-hexylamine. Among the hexylaminoalkylamidonaphthalimides, 2-hexylaminoethylamidonaphthalimide was developed into a new fluorogenic probe. The bidentate 2-hexylaminoethylamidonaphthalimide acted as fluorescent chemosensor with a high selectivity and suitable affinity towards Cu2+ in aqueous medium (pH 7.4). This technique of detection of Cu2+ is highly sensitive and can detect 0.1 mu M range. (C) 2014 Elsevier B.V. All rights reserved.