DOI: 10.1143/jjap.36.l916. Mechanism Activating the 2<sup>1</sup>A<sub>g</sub> State in all-trans-β-Carotene Crystal to Resonance Raman Scattering

Mechanism Activating the 21Ag State in all-trans-β-Carotene Crystal to Resonance Raman Scattering

10.1143/jjap.36.l916

Crossref journal-article

IOP Publishing

Japanese Journal of Applied Physics (266)

Abstract

The mechanism governing the additional excitation peak of the C=C stretching Raman line was studied by comparing randomly oriented crystals of all- trans-β-carotene at 11 K with microcrystals dispersed in a KBr disk at 11 K, a spin-coated film at 11 K and an isopentane solution at 160 K. Only the randomly oriented crystals gave rise to the additional peak. The peak at 14500 cm-1 is assigned to the electronic forbidden transition to the 21A g state, and its oscillator strength is estimated as f a∼1×10-2. An asymmetric distortion in the crystal is proposed to activate the forbidden transition at low temperature.

Bibliography

Hashimoto, H., Koyama, Y., & Yuzo Mori, Y. M. (1997). Mechanism Activating the 21Ag State in all-trans-Î²-Carotene Crystal to Resonance Raman Scattering. Japanese Journal of Applied Physics, 36(7B), L916.

Authors 3

Hideki Hashimoto (first)
Yasushi Koyama (additional)
Yuzo Mori Yuzo Mori (additional)

References 23 Referenced 19

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Dates

Type	When
Created	22 years, 11 months ago (Oct. 1, 2002, 6:25 p.m.)
Deposited	2 years, 8 months ago (Dec. 14, 2022, 11:36 a.m.)
Indexed	6 months, 2 weeks ago (Feb. 21, 2025, 5:34 a.m.)
Issued	28 years, 2 months ago (July 1, 1997)
Published	28 years, 2 months ago (July 1, 1997)
Published Print	28 years, 2 months ago (July 1, 1997)

Funders 0

None

BibTeX

@article{Hashimoto_1997, title={Mechanism Activating the 21Ag State in all-trans-β-Carotene Crystal to Resonance Raman Scattering}, volume={36}, ISSN={1347-4065}, url={http://dx.doi.org/10.1143/jjap.36.l916}, DOI={10.1143/jjap.36.l916}, number={7B}, journal={Japanese Journal of Applied Physics}, publisher={IOP Publishing}, author={Hashimoto, Hideki and Koyama, Yasushi and Yuzo Mori, Yuzo Mori}, year={1997}, month=jul, pages={L916} }

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