Direct measurement of the lowest excited singlet state lifetime of all-trans-β-carotene and related carotenoids

Michael R Wasielewski, Lowell D. Kispert

Research output: Contribution to journalArticle

127 Citations (Scopus)

Abstract

A 4 ps, 510 nm laser pulse was used to electronically excite toluene solutions of all-trans-β-carotene, canthaxanthin, and β-8'-apocarotenal. The 430-510 nm electronic absorption band of each carotene bleaches immediately upon excitation and recovers with single-exponential kinetics: τ = 8.4 ± 0.6 ps for all-trans-β-carotene, 5.2 ± 0.6 ps for canthaxanthin, and 25.4 ± 0.2 ps for β-8'-apocarotenal. The results are discussed in terms of the excited singlet state properties of carotenoids.

Original languageEnglish
Pages (from-to)238-243
Number of pages6
JournalChemical Physics Letters
Volume128
Issue number3
DOIs
Publication statusPublished - Jul 25 1986

Fingerprint

carotene
carotenoids
Carotenoids
Excited states
Canthaxanthin
life (durability)
excitation
toluene
Toluene
absorption spectra
Absorption spectra
Laser pulses
kinetics
pulses
electronics
Kinetics
lasers
apocarotenal

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Spectroscopy
  • Condensed Matter Physics
  • Atomic and Molecular Physics, and Optics
  • Surfaces and Interfaces

Cite this

Direct measurement of the lowest excited singlet state lifetime of all-trans-β-carotene and related carotenoids. / Wasielewski, Michael R; Kispert, Lowell D.

In: Chemical Physics Letters, Vol. 128, No. 3, 25.07.1986, p. 238-243.

Research output: Contribution to journalArticle

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