Campus Units

Chemistry

Document Type

Article

Publication Version

Published Version

Publication Date

11-1993

Journal or Book Title

Journal of the American Chemical Society

Volume

115

Issue

22

First Page

10158

Last Page

10166

DOI

10.1021/ja00075a035

Abstract

The proton inventory technique is used for the first time to investigate excited-state proton-transfer processes. The nonradiative pathways of the biological probe, 7-azaindole, in methanol, ethanol, and water are examined. Results in methanol and ethanol demonstrate the involvement of two protons in the transition state for the excited-state doubleproton transfer process. These data provide the first experimental evidence suggesting a concerted tautomerization reaction of 7-azaindole in alcohols. The data for 7-azaindole in water are interpreted in terms of a nonradiative pathway that is qualitatively different from that in alcohols. We propose abstraction of the N1 hydrogen by water as a possible nonradiative decay process.

Comments

Reprinted (adapted) with permission from Journal of the American Chemical Society 115 (1993): 10158, doi: 10.1021/ja00075a035. Copyright 1993 American Chemical Society.

Copyright Owner

American Chemical Society

Language

en

File Format

application/pdf

Included in

Chemistry Commons

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