Beilstein J. Org. Chem.2013,9, 1311–1318, doi:10.3762/bjoc.9.147
(3H)-yl)benzoic acid (4) was found to be a sensitive molecular probe for ZnO nanoparticles. We investigated in detail one- andtwo-photonabsorption properties of this fluorophore. In nonpolar solvents, the acid 4 absorbs at about 400 nm and fluoresces at 500 nm with a fluorescence lifetime of about 7
patterns.
Keywords: fluorescence; hydrogen bond; 1,8-naphthalimide; one- andtwo-photonabsorption; zinc oxide; Introduction
1,8-Naphthalimide derivatives are useful for a variety of applications owing to their strong fluorescence, electroactivity and photostability. These compounds can be employed as
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Graphical Abstract
Scheme 1:
Synthesis and structures of 1,8-naphthalimides.