Transient Raman Spectroscopy
of Isotope-Substituted Species
of Bacteriochlorophyll a,
Bacteriopheophytin a And
Chlorophyll a: Changes in the
Bond Orders in the Macrocycles
Upon Triplet and Singlet
Excitation

Koyama, Yasushi; Limantara, Leenawaty; Sashima, Tokutake

doi:https://doi.org/10.1155/1999/12721

Laser Chemistry

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Proceedings of the Eighth Conference on Time-Resolved Vibrational Spectroscopy

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Volume 19 | Article ID 012721 | https://doi.org/10.1155/1999/12721

Transient Raman Spectroscopy of Isotope-Substituted Species of Bacteriochlorophyll a, Bacteriopheophytin a And Chlorophyll a: Changes in the Bond Orders in the Macrocycles Upon Triplet and Singlet Excitation

Yasushi Koyama,¹Leenawaty Limantara,¹and Tokutake Sashima¹

Received07 Apr 1997

Abstract

The S₀, T₁ and S₁ Raman spectra of bacteriochlorophyll a, bacteriopheophytin a and chlorophyll a were recorded for the species of natural abundance isotopic composition and those of totally substituted with ¹⁵N, ¹³C and ²H isotopes. Based on empirical assignments of the Raman lines, changes in the bond orders in the macrocycle upon triplet and singlet excitation are discussed.

Copyright

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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