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Spectroscopic studies of the low-lying singlet excited electronic states and photochemical properties of carotenoids

期刊

ARCHIVES OF BIOCHEMISTRY AND BIOPHYSICS
卷 385, 期 1, 页码 53-60

出版社

ELSEVIER SCIENCE INC
DOI: 10.1006/abbi.2000.2091

关键词

carotenoid; excited state; fluorescence; forbidden transition; optical spectroscopy; polyene

资金

  1. NATIONAL INSTITUTE OF GENERAL MEDICAL SCIENCES [R01GM030353] Funding Source: NIH RePORTER
  2. NIGMS NIH HHS [GM-30353] Funding Source: Medline

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Investigations of the singlet; excited state properties of carotenoids using steady-state fluorescence, transient absorption pump-probe, two-photon excitation, and resonance Raman excitation spectroscopies are described. The application of these experimental techniques to the specific problem of determining the S-1 excited energies of carotenoids is discussed in detail, and the recent literature pertaining to the assignment of charge transfer states in carotenoids and states described as having particular pseudoparity elements is reviewed. Hypothetical schemes for how these states may account for some of the dynamic and photochemical behavior of carotenoids are presented. (C) 2001 Academic Press.

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