Picosecond near-infrared excited transient Raman spectra of b-carotene in the excited S sub(2) state: Solvent effects on the in-phase C[double bond; length as m-dash]C stretching band and vibronic coupling

Picosecond time-resolved Raman spectra of b-carotene in the excited S sub(2) ([MathML equation]) state have been obtained in resonance with its near-infrared transient absorption. The Raman band due to the in-phase C[double bond; length as m-dash]C stretching mode of b-carotene in the S sub(2) state...

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Bibliographic Details
Published in:Journal of molecular structure 2010-07, Vol.976 (1-3), p.310-313
Main Authors: Sakamoto, Akira, Matsuno, Shinya, Tasumi, Mitsuo
Format: Article
Language:English
Subjects:
Bands
Bonding
Coupling (molecular)
Excitation spectra
Mathematical analysis
Raman spectra
Solvent effect
Stretching
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Summary:Picosecond time-resolved Raman spectra of b-carotene in the excited S sub(2) ([MathML equation]) state have been obtained in resonance with its near-infrared transient absorption. The Raman band due to the in-phase C[double bond; length as m-dash]C stretching mode of b-carotene in the S sub(2) state has been observed at about 1550 cm super(-1). The solvent effects on this band are discussed in comparison with the previous results on the corresponding bands in the ground S sub(0) ([MathML equation]) state and the excited S sub(1) ([MathML equation]) state.
ISSN:0022-2860
DOI:10.1016/j.molstruc.2010.04.012