Femtosecond dynamics of excited-state intramolecular proton transfer in o-tosylaminobenzaldehyde

M. N. Khimich; V. A. Nadtochenko; L. D. Popov; A. S. Burlov; V. L. Ivanov; N. N. Denisov; F. E. Gostev; I. V. Shelaev; O. M. Sarkisov; B. M. Uzhinov

doi:10.1134/S001814391204008X

High Energy Chemistry

July 2012, Volume 46, Issue 4, pp 247–252

Femtosecond dynamics of excited-state intramolecular proton transfer in o-tosylaminobenzaldehyde

Authors
Authors and affiliations

M. N. KhimichEmail author
V. A. Nadtochenko
L. D. Popov
A. S. Burlov
V. L. Ivanov
N. N. Denisov
F. E. Gostev
I. V. Shelaev
O. M. Sarkisov
B. M. Uzhinov

Photochemistry

First Online:: 05 July 2012

Received:: 31 January 2012
Accepted:: 26 February 2012

DOI: 10.1134/S001814391204008X

Cite this article as:: Khimich, M.N., Nadtochenko, V.A., Popov, L.D. et al. High Energy Chem (2012) 46: 247. doi:10.1134/S001814391204008X

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Abstract

Dynamics of excited-state intramolecular proton transfer (ESIPT) in o-tosylaminobenzaldehyde has been studied by femtosecond absorption spectroscopy with a time resolution of 30 fs. The characteristic time of this process is ∼100 fs. Differential absorption rate curves exhibit oscillations that are consistent with theoretically predicted ESIPT-promoting vibrational modes. Efficient nonradiative deactivation with a rate constant of 6.25 × 10¹⁰ s⁻¹ occurs in the excited product of proton transfer, with internal rotation followed by intersystem crossing being one of the feasible deactivation pathways.

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Copyright information

Authors and Affiliations

M. N. Khimich
- 1
Email author
V. A. Nadtochenko
- 2
L. D. Popov
- 3
A. S. Burlov
- 3
V. L. Ivanov
- 1
N. N. Denisov
- 2
F. E. Gostev
- 2
I. V. Shelaev
- 2
O. M. Sarkisov
- 2
B. M. Uzhinov
- 1

Femtosecond dynamics of excited-state intramolecular proton transfer in o-tosylaminobenzaldehyde

Abstract

Copyright information

Authors and Affiliations

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