Vibrational structure of the S2 (1Bu) excited state of diphenyloctatetraene observed by femtosecond stimulated Raman spectroscopy

Philipp Kukura; David W. McCamant; Paul H. Davis; Richard A. Mathies

doi:10.1016/j.cplett.2003.10.051

Vibrational structure of the S₂ (1B_u) excited state of diphenyloctatetraene observed by femtosecond stimulated Raman spectroscopy

Philipp Kukura, David W. McCamant, Paul H. Davis, Richard A. Mathies

Chemistry Department

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

35 Scopus citations

Abstract

Femtosecond time-resolved stimulated Raman spectroscopy (FSRS) is used to study the vibrational structure and dynamics of the S₂ state of diphenyloctatetraene. Strong vibrational features at 1184, 1259 and 1578 cm ^-1 whose linewidths are determined by the S₂ electronic lifetime are observed at early times after photoexcitation at 397 nm. Kinetic analysis of the integrated Raman intensities as well as the transient absorption reveals an exponential decay of the S₂ state on the order of 100 fs. These results demonstrate the ability of FSRS to study the vibrational structure of excited state and chemical reaction dynamics on the femtosecond timescale.

Original language	English
Pages (from-to)	81-86
Number of pages	6
Journal	Chemical Physics Letters
Volume	382
Issue number	1-2
DOIs	https://doi.org/10.1016/j.cplett.2003.10.051
State	Published - 28 Nov 2003

Access to Document

10.1016/j.cplett.2003.10.051

Cite this

@article{b0f3ce01e4c64c72b0286767229d996c,

title = "Vibrational structure of the S2 (1Bu) excited state of diphenyloctatetraene observed by femtosecond stimulated Raman spectroscopy",

abstract = "Femtosecond time-resolved stimulated Raman spectroscopy (FSRS) is used to study the vibrational structure and dynamics of the S2 state of diphenyloctatetraene. Strong vibrational features at 1184, 1259 and 1578 cm -1 whose linewidths are determined by the S2 electronic lifetime are observed at early times after photoexcitation at 397 nm. Kinetic analysis of the integrated Raman intensities as well as the transient absorption reveals an exponential decay of the S2 state on the order of 100 fs. These results demonstrate the ability of FSRS to study the vibrational structure of excited state and chemical reaction dynamics on the femtosecond timescale.",

author = "Philipp Kukura and McCamant, {David W.} and Davis, {Paul H.} and Mathies, {Richard A.}",

year = "2003",

month = nov,

day = "28",

doi = "10.1016/j.cplett.2003.10.051",

language = "English",

volume = "382",

pages = "81--86",

number = "1-2",

}

TY - JOUR

T1 - Vibrational structure of the S2 (1Bu) excited state of diphenyloctatetraene observed by femtosecond stimulated Raman spectroscopy

AU - Kukura, Philipp

AU - McCamant, David W.

AU - Davis, Paul H.

AU - Mathies, Richard A.

PY - 2003/11/28

Y1 - 2003/11/28

N2 - Femtosecond time-resolved stimulated Raman spectroscopy (FSRS) is used to study the vibrational structure and dynamics of the S2 state of diphenyloctatetraene. Strong vibrational features at 1184, 1259 and 1578 cm -1 whose linewidths are determined by the S2 electronic lifetime are observed at early times after photoexcitation at 397 nm. Kinetic analysis of the integrated Raman intensities as well as the transient absorption reveals an exponential decay of the S2 state on the order of 100 fs. These results demonstrate the ability of FSRS to study the vibrational structure of excited state and chemical reaction dynamics on the femtosecond timescale.

AB - Femtosecond time-resolved stimulated Raman spectroscopy (FSRS) is used to study the vibrational structure and dynamics of the S2 state of diphenyloctatetraene. Strong vibrational features at 1184, 1259 and 1578 cm -1 whose linewidths are determined by the S2 electronic lifetime are observed at early times after photoexcitation at 397 nm. Kinetic analysis of the integrated Raman intensities as well as the transient absorption reveals an exponential decay of the S2 state on the order of 100 fs. These results demonstrate the ability of FSRS to study the vibrational structure of excited state and chemical reaction dynamics on the femtosecond timescale.

UR - http://www.scopus.com/inward/record.url?scp=0344420159&partnerID=8YFLogxK

U2 - 10.1016/j.cplett.2003.10.051

DO - 10.1016/j.cplett.2003.10.051

M3 - Article

AN - SCOPUS:0344420159

SN - 0009-2614

VL - 382

SP - 81

EP - 86

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 1-2

ER -

Vibrational structure of the S₂ (1B_u) excited state of diphenyloctatetraene observed by femtosecond stimulated Raman spectroscopy

Abstract

Access to Document

Other files and links

Fingerprint

Cite this