Journal
BULLETIN OF THE KOREAN CHEMICAL SOCIETY
Volume 35, Issue 1, Pages 135-140Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.5012/bkcs.2014.35.1.135
Keywords
Fluorescence; Chloroform photolysis; Click chemistry; Intramolecular charge transfer; Protonation
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Funding
- Dankook university
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A bent-shape triazolyl derivative was synthesized via click chemistry, and its photophysical property was investigated in various solvents. In contrast to the invisible ultraviolet emission of other solutions, the chloroform solution exhibited a blue light emission at 460 nm. Furthermore, the blue fluorescence intensified as the UV exposure time at 365 nm increased. On the basis of H-1-NMR, pH paper, and acid-addition studies, we confirmed that chloroform was decomposed into HCl with the aid of the triazolyl derivative. The density functional theory calculations suggested that the eye-detectable blue fluorescence was attributed to an intramolecular charge transfer process of the protonated triazolyl derivative in the chloroform solution.
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