Picosecond Raman Investigation
of the Structure and Reactivity
of 4,4′-Bipyridine in the <em>S</em><sub>1</sub> State

Buntinx, G.; Bussotti, L.; De Waele, V.; Didierjean, C.; Poizat, O.

doi:https://doi.org/10.1155/1999/72170

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Proceedings of the Eighth Conference on Time-Resolved Vibrational Spectroscopy

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Volume 19 | Article ID 072170 | https://doi.org/10.1155/1999/72170

Picosecond Raman Investigation of the Structure and Reactivity of 4,4′-Bipyridine in the S₁ State

G. Buntinx,¹L. Bussotti,¹V. De Waele,¹C. Didierjean,¹and O. Poizat²

Received17 Apr 1997

Abstract

The lowest excited singlet state (S₁) of 4,4′-bipyridine (44BPY) has been studied in water and methanol by using pump-probe time-resolved resonance Raman spectroscopy in the picosecond time domain. Spectroscopic evidence for a disymmetric S₁ structure with localization of the electronic excitation in one of the two pyridyl rings is given. The fast formation of the N-hydro radical 44BPYH• from the S₁ state is clearly observed in methanol.

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Copyright © 1999 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Laser Chemistry

Proceedings of the Eighth Conference on Time-Resolved Vibrational Spectroscopy

Picosecond Raman Investigation of the Structure and Reactivity of 4,4′-Bipyridine in the S1 State

Abstract

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Picosecond Raman Investigation of the Structure and Reactivity of 4,4′-Bipyridine in the S₁ State