DOI: 10.1073/pnas.96.15.8338. Resolution of concerted versus sequential mechanisms in photo-induced double-proton transfer reaction in 7-azaindole H-bonded dimer

Resolution of concerted versus sequential mechanisms in photo-induced double-proton transfer reaction in 7-azaindole H-bonded dimer

10.1073/pnas.96.15.8338

Crossref journal-article

Proceedings of the National Academy of Sciences

Proceedings of the National Academy of Sciences (341)

Abstract

The experimental and theoretical bases for a synchronous or concerted double-proton transfer in centro-symmetric H-bonded electronically excited molecular dimers are presented. The prototype model is the 7-azaindole dimer. New research offers confirmation of a concerted mechanism for excited-state biprotonic transfer. Recent femtosecond photoionization and coulombic explosion techniques have given rise to time-of-flight MS observations suggesting sequential two-step biprotonic transfer for the same dimer. We interpret the overall species observed in the time-of-flight experiments as explicable without conflict with the concerted mechanism of proton transfer.

Bibliography

CatalÃ¡n, J., del Valle, J. C., & Kasha, M. (1999). Resolution of concerted versus sequential mechanisms in photo-induced double-proton transfer reaction in 7-azaindole H-bonded dimer. Proceedings of the National Academy of Sciences, 96(15), 8338â8343.

Authors 3

Javier Catalán (first)
Juan Carlos del Valle (additional)
Michael Kasha (additional)

References 31 Referenced 116

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Dates

Type	When
Created	23 years, 1 month ago (July 26, 2002, 10:35 a.m.)
Deposited	3 years, 4 months ago (April 13, 2022, 4:40 p.m.)
Indexed	3 hours, 43 minutes ago (Aug. 29, 2025, 6:15 a.m.)
Issued	26 years, 1 month ago (July 20, 1999)
Published	26 years, 1 month ago (July 20, 1999)
Published Online	26 years, 1 month ago (July 20, 1999)
Published Print	26 years, 1 month ago (July 20, 1999)

Funders 0

None

BibTeX

@article{Catal_n_1999, title={Resolution of concerted versus sequential mechanisms in photo-induced double-proton transfer reaction in 7-azaindole H-bonded dimer}, volume={96}, ISSN={1091-6490}, url={http://dx.doi.org/10.1073/pnas.96.15.8338}, DOI={10.1073/pnas.96.15.8338}, number={15}, journal={Proceedings of the National Academy of Sciences}, publisher={Proceedings of the National Academy of Sciences}, author={Catalán, Javier and del Valle, Juan Carlos and Kasha, Michael}, year={1999}, month=jul, pages={8338–8343} }

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