DOI: 10.1111/j.1751-1097.1993.tb02253.x. LOCATION OF THE CAROTENOID 2A<sub>g</sub>‐STATE AND ITS ROLE IN PHOTOSYNTHESIS

LOCATION OF THE CAROTENOID 2Ag‐STATE AND ITS ROLE IN PHOTOSYNTHESIS

10.1111/j.1751-1097.1993.tb02253.x

Crossref journal-article

Wiley

Photochemistry and Photobiology (311)

Abstract

AbstractThe location of the carotenoid 2Ag‐state (S1) was studied by fluorescence spectroscopy in two series of carotenoids. One consisted of natural polyenes like phytoene, phytofluene, β‐carotene, and neurosporene, and the other of minicarotenes, i.e., compounds similar to β‐carotene, but with a smaller number of double bonds (n=3–9). A decrease of the S1‐S0 energy gap with n was observed in both series, and extrapolation to n= 11 gave the energies 14 500 and 13 200 cm−1 for β‐carotene and lycopene, respectively. The neurosporene S1 state was located at ca 16 000 cm−1. A good relationship between the nonradiative relaxation rate and the number of conjugation was observed. The rate increased by a factor of 2.5 per double bond. The possible role of the S1 state in reversible carotenoid ← chlorophyll electron‐exchange energy transfer is discussed.

Bibliography

Gillbro, T., Andersson, P. O., Liu, R. S. H., Asato, A. E., Takaishi, S., & Cogdell, R. J. (1993). LOCATION OF THE CAROTENOID 2AgâSTATE AND ITS ROLE IN PHOTOSYNTHESIS. Photochemistry and Photobiology, 57(1), 44â48. Portico.

Authors 6

T. Gillbro (first)
P. O. Andersson (additional)
R. S. H. Liu (additional)
A. E. Asato (additional)
S. Takaishi (additional)
R. J. Cogdell (additional)

References 35 Referenced 46

10.1016/0304-4173(85)90006-0
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{'key': 'e_1_2_1_12_2', 'first-page': '000', 'article-title': 'Carotenoid singlet states and their involvement in photosynthetic', 'volume': '57', 'author': 'Cogdell R. J.', 'year': '1992', 'journal-title': 'J. Photochem. Photobiol.'} / J. Photochem. Photobiol. / Carotenoid singlet states and their involvement in photosynthetic by Cogdell R. J. (1992)
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Dates

Type	When
Created	17 years, 7 months ago (Jan. 2, 2008, 3:10 p.m.)
Deposited	1 year, 10 months ago (Oct. 24, 2023, 7:27 p.m.)
Indexed	3 months, 2 weeks ago (May 14, 2025, 12:48 a.m.)
Issued	32 years, 7 months ago (Jan. 1, 1993)
Published	32 years, 7 months ago (Jan. 1, 1993)
Published Online	17 years, 7 months ago (Jan. 2, 2008)
Published Print	32 years, 7 months ago (Jan. 1, 1993)

Funders 0

None

BibTeX

@article{Gillbro_1993, title={LOCATION OF THE CAROTENOID 2Ag‐STATE AND ITS ROLE IN PHOTOSYNTHESIS}, volume={57}, ISSN={1751-1097}, url={http://dx.doi.org/10.1111/j.1751-1097.1993.tb02253.x}, DOI={10.1111/j.1751-1097.1993.tb02253.x}, number={1}, journal={Photochemistry and Photobiology}, publisher={Wiley}, author={Gillbro, T. and Andersson, P. O. and Liu, R. S. H. and Asato, A. E. and Takaishi, S. and Cogdell, R. J.}, year={1993}, month=jan, pages={44–48} }

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