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Picosecond vibrational relaxation in the excited-state proton-transfer of 2-(3′-hydroxy-2′-naphthyl)benzimidazole

✍ Scribed by A. Douhal; F. Amat-Guerri; A.U. Acuña; K. Yoshihara

Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
582 KB
Volume
217
Category
Article
ISSN
0009-2614

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✦ Synopsis

The fluorescence of 2-(3'-hydroxy-2'-naphthyl) bcnzimidazole in solution shows two bands at ~400 and 600 MI, respectively assigned to the open-enol form bound to the solvent, and to the phototautomer produced from the closedenol form. Both enol species coexist in the ground state. A fluorescence risetime of 16 ps has been attributed to the vibrational cooling-process of the excited phototautomer.

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