A picosecond time-resolved resonance Raman study of S1 cis-stilbene

P. Matousek; A. W. Parker; D. Phillips; G. D. Scholes; W. T. Toner; M. Towrie

doi:10.1016/S0009-2614(97)01000-2

A picosecond time-resolved resonance Raman study of S₁ cis-stilbene

P. Matousek, A. W. Parker, D. Phillips, G. D. Scholes, W. T. Toner, M. Towrie

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Abstract

The time-resolved resonance Raman (TR³) spectrum of S₁ cis-stilbene in n-hexane is presented. Raman bands are observed at 243, 475, 742, 977, 1200 and 1440 cm^-1. Their positions and relative intensities suggest that these belong to a high-order overtone progression (up to the fifth order) originating from the 243 cm^1- fundamental. This observation implies a large difference between S₁ and the resonant S_n states in the equilibrium nuclear coordinate corresponding to the 243 cm^-1 mode, with displacement Δ ∼ 12. Ground and excited state equilibrium geometries and frequencies are determined using ab initio molecular orbital calculations.

Original language	English (US)
Pages (from-to)	56-62
Number of pages	7
Journal	Chemical Physics Letters
Volume	278
Issue number	1-3
DOIs	https://doi.org/10.1016/S0009-2614(97)01000-2
State	Published - Oct 24 1997
Externally published	Yes

All Science Journal Classification (ASJC) codes

General Physics and Astronomy
Physical and Theoretical Chemistry

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10.1016/S0009-2614(97)01000-2

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@article{6a472d23534d4265ae03a8ce73aaf6a1,

title = "A picosecond time-resolved resonance Raman study of S1 cis-stilbene",

abstract = "The time-resolved resonance Raman (TR3) spectrum of S1 cis-stilbene in n-hexane is presented. Raman bands are observed at 243, 475, 742, 977, 1200 and 1440 cm-1. Their positions and relative intensities suggest that these belong to a high-order overtone progression (up to the fifth order) originating from the 243 cm1- fundamental. This observation implies a large difference between S1 and the resonant Sn states in the equilibrium nuclear coordinate corresponding to the 243 cm-1 mode, with displacement Δ ∼ 12. Ground and excited state equilibrium geometries and frequencies are determined using ab initio molecular orbital calculations.",

author = "P. Matousek and Parker, {A. W.} and D. Phillips and Scholes, {G. D.} and Toner, {W. T.} and M. Towrie",

note = "Funding Information: We should like to thank I.R. Gould and S.M. Tavender for contributions to this work and D.L. Phillips, T.L. Gustafson, R.E. Hester and K. Iwata for valuable comments during the preparation of this article. This work was supported by EPSRC. GDS gratefully acknowledges support of the Ramsay Memorial Fellowship Trust.",

year = "1997",

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doi = "10.1016/S0009-2614(97)01000-2",

language = "English (US)",

volume = "278",

pages = "56--62",

journal = "Chemical Physics Letters",

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publisher = "Elsevier B.V.",

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TY - JOUR

T1 - A picosecond time-resolved resonance Raman study of S1 cis-stilbene

AU - Matousek, P.

AU - Parker, A. W.

AU - Phillips, D.

AU - Scholes, G. D.

AU - Toner, W. T.

AU - Towrie, M.

N1 - Funding Information: We should like to thank I.R. Gould and S.M. Tavender for contributions to this work and D.L. Phillips, T.L. Gustafson, R.E. Hester and K. Iwata for valuable comments during the preparation of this article. This work was supported by EPSRC. GDS gratefully acknowledges support of the Ramsay Memorial Fellowship Trust.

PY - 1997/10/24

Y1 - 1997/10/24

N2 - The time-resolved resonance Raman (TR3) spectrum of S1 cis-stilbene in n-hexane is presented. Raman bands are observed at 243, 475, 742, 977, 1200 and 1440 cm-1. Their positions and relative intensities suggest that these belong to a high-order overtone progression (up to the fifth order) originating from the 243 cm1- fundamental. This observation implies a large difference between S1 and the resonant Sn states in the equilibrium nuclear coordinate corresponding to the 243 cm-1 mode, with displacement Δ ∼ 12. Ground and excited state equilibrium geometries and frequencies are determined using ab initio molecular orbital calculations.

AB - The time-resolved resonance Raman (TR3) spectrum of S1 cis-stilbene in n-hexane is presented. Raman bands are observed at 243, 475, 742, 977, 1200 and 1440 cm-1. Their positions and relative intensities suggest that these belong to a high-order overtone progression (up to the fifth order) originating from the 243 cm1- fundamental. This observation implies a large difference between S1 and the resonant Sn states in the equilibrium nuclear coordinate corresponding to the 243 cm-1 mode, with displacement Δ ∼ 12. Ground and excited state equilibrium geometries and frequencies are determined using ab initio molecular orbital calculations.

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U2 - 10.1016/S0009-2614(97)01000-2

DO - 10.1016/S0009-2614(97)01000-2

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VL - 278

SP - 56

EP - 62

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 1-3

ER -

A picosecond time-resolved resonance Raman study of S₁ cis-stilbene

Abstract

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