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On the barrier to excited-state intramolecular proton transfer (ESIPT): the controversial assignment of the spectra of 2,5-bis(2-benzoxazolyl)hydroquinone in solid argon

Dick, Bernhard (1989) On the barrier to excited-state intramolecular proton transfer (ESIPT): the controversial assignment of the spectra of 2,5-bis(2-benzoxazolyl)hydroquinone in solid argon. Chemical Physics Letters 158 (1-2), pp. 37-44.

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Abstract

The spectra of 2,5-bis(2-benzoxazolyl)hydroquinone (I) in solid argon at 15 K reveals two species. The major species (96%) undergoes very efficient excited-state intramol. proton transfer (ESIPT) after excitation to S1. It is assigned to the isolated I mol. (solvated by argon atoms) in which ESIPT is not thermally activated. Either no energy barrier exists or it can be overcome by proton ...

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Item type:Article
Date:1989
Additional Information (public):CAN 112:54762 22-9 Physical Organic Chemistry 33450-11-2 Role: PRP (Properties) (fluorescence excitation spectra of); 12408-02-5 Role: PRP (Properties) (protonation and Proton transfer reaction, excited-state, intramol., of bis(benzoxazolyl)hydroquinone)
Institutions:Chemistry and Pharmacy > Institut für Physikalische und Theoretische Chemie > Chair of Chemistry III - Physical Chemistry (Molecular Spectroscopy and Photochemistry) > Prof. Dr. Bernhard Dick
Identification Number:
ValueType
1990:54762Other
10.1016/0009-2614(89)87290-2DOI
Keywords:Potential barrier (to excited-state intramol. proton transfer in bis(benzoxazolyl)hydroquinone); Fluorescence (excitation, of bis(benzoxazolyl)hydroquinone); Protonation and Proton transfer reaction (excited-state, intramol., of bis(benzoxazolyl)hydroquinone); fluorescence excitation benzoxazolylhydroquinone; excited state intramol proton transfer; barrier proton transfer bisbenzoxazolylhydroquinone
Dewey Decimal Classification:500 Science > 540 Chemistry & allied sciences
Status:Published
Refereed:Yes, this version has been refereed
Created at the University of Regensburg:No
Item ID:5499
Owner only: item control page

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