2-Hexylaminoethylamidonaphthalimide as Cu2+ sensor

[Display omitted] •Synthesis of 2-Hexylaminoethylamidonaphthalimide and 4-Hexylaminobutylamidonaphthalimide.•Fluorescence study of 2-Hexylaminoethylamidonaphthalimide and 4-Hexylaminobutylamidonaphthalimide.•Study of effect of Cu2+ and Ni2+ ions fluorescence of 2-Hexylaminoethylamidonaphthalimide. N...

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Bibliographic Details
Published in:Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy Molecular and biomolecular spectroscopy, 2014-07, Vol.128, p.880-886
Main Authors: Sheshashena Reddy, T., Ram Reddy, A.
Format: Article
Language:English
Subjects:
1,8-Naphthalic anhydride and Quantum efficiency
2-Hexylaminoethylamidonaphthalimide
Fluorescence
Quenching
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Summary:[Display omitted] •Synthesis of 2-Hexylaminoethylamidonaphthalimide and 4-Hexylaminobutylamidonaphthalimide.•Fluorescence study of 2-Hexylaminoethylamidonaphthalimide and 4-Hexylaminobutylamidonaphthalimide.•Study of effect of Cu2+ and Ni2+ ions fluorescence of 2-Hexylaminoethylamidonaphthalimide. 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 0.1μM range.
ISSN:1386-1425
DOI:10.1016/j.saa.2014.02.120