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

Michael R Wasielewski; Lowell D. Kispert

doi:10.1016/0009-2614(86)80332-3

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

Michael R Wasielewski, Lowell D. Kispert

Northwestern University

Research output: Contribution to journal › Article › peer-review

133 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 language	English
Pages (from-to)	238-243
Number of pages	6
Journal	Chemical Physics Letters
Volume	128
Issue number	3
DOIs	https://doi.org/10.1016/0009-2614(86)80332-3
Publication status	Published - Jul 25 1986

ASJC Scopus subject areas

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

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

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.",

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T1 - Direct measurement of the lowest excited singlet state lifetime of all-trans-β-carotene and related carotenoids

AU - Wasielewski, Michael R

AU - Kispert, Lowell D.

PY - 1986/7/25

Y1 - 1986/7/25

N2 - 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.

AB - 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.

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