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https://open.uns.ac.rs/handle/123456789/14830
Title: | The dual fluorescence of cyano-5-phenyltetrazoles | Authors: | Kakaǎs M. Janić I. Gúth I. |
Issue Date: | 1-Jan-1992 | Journal: | Journal of Molecular Structure | Abstract: | Absorption, excitation and luminescence spectra of ortho-, meta- and para-cyano-5-phenyltetrazole in solvents of different polarity and proton-accepting ability, werer examined. The dual fluorescence, which appears in some solvents at room temperature, can by explained by the formation of the hydrogen-bonded complexes between the solute and solvent molecules which can results in proton transfer in the excited state, and formation of anion. In the excited anion of cyano-5-phenyl tetrazole, a considerable charge transfer from tetrazole to phenyl ring take place, accompanied by mutual twisting of the rings. That twisted conformation of the anion is responsible longwave band of dual fluorescence. © 1992. | URI: | https://open.uns.ac.rs/handle/123456789/14830 | ISSN: | 00222860 | DOI: | 10.1016/0022-2860(92)80093-W |
Appears in Collections: | Naučne i umetničke publikacije |
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