Excited State Spectra and Dynamics of Phenyl-Substituted Butadienes

Stacie E. Wallace-Williams; Benjamin J. Schwartz; Søren Møller; Robert A. Goldbeck; W. Atom Yee; M. Ashraf El-Bayoumi; David S. Kliger

doi:10.1021/j100052a011

Excited State Spectra and Dynamics of Phenyl-Substituted Butadienes

Stacie E. Wallace-Williams, Benjamin J. Schwartz, Søren Møller, Robert A. Goldbeck, W. Atom Yee, M. Ashraf El-Bayoumi, David S. Kliger

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

A combination of steady-state and dynamic spectral measurements are used to provide new insights into the nature of the excited-state processes of all-trans-1,4-diphenyl-1,3-butadiene and several analogs: 1,4-diphenyl- 1,3-cyclopentadiene, 1,1,4,4-tetraphenylbutadiene, 1,2,3,4-tetraphenyl-1,3-cyclopentadiene, and E,E-diindanylidenylethane. Ground-state absorption, fluorescence, and nanosecond transient absorption measurements identify geometry changes upon excitation and provide information regarding the nature of the first excited singlet state. Femtosecond and picosecond transient absorption data indicate that phenyl torsional motion is not important to the excited-state dynamics and reveal alternative excited-state reaction pathways. The results demonstrate how molecular systems that are structually similar can exhibit different electronic properties and excited-state dynamics.

Original language	English
Journal	Journal of Physical Chemistry
Volume	98
Issue number	1
Pages (from-to)	60-67
ISSN	0022-3654
DOIs	https://doi.org/10.1021/j100052a011
Publication status	Published - 1994

Link to document

10.1021/j100052a011

Cite this

@article{e8d5208055c911da99c9000ea68e967b,

title = "Excited State Spectra and Dynamics of Phenyl-Substituted Butadienes",

abstract = "A combination of steady-state and dynamic spectral measurements are used to provide new insights into the nature of the excited-state processes of all-trans-1,4-diphenyl-1,3-butadiene and several analogs: 1,4-diphenyl- 1,3-cyclopentadiene, 1,1,4,4-tetraphenylbutadiene, 1,2,3,4-tetraphenyl-1,3-cyclopentadiene, and E,E-diindanylidenylethane. Ground-state absorption, fluorescence, and nanosecond transient absorption measurements identify geometry changes upon excitation and provide information regarding the nature of the first excited singlet state. Femtosecond and picosecond transient absorption data indicate that phenyl torsional motion is not important to the excited-state dynamics and reveal alternative excited-state reaction pathways. The results demonstrate how molecular systems that are structually similar can exhibit different electronic properties and excited-state dynamics.",

author = "Wallace-Williams, {Stacie E.} and Schwartz, {Benjamin J.} and S{\o}ren M{\o}ller and Goldbeck, {Robert A.} and Yee, {W. Atom} and El-Bayoumi, {M. Ashraf} and Kliger, {David S.}",

year = "1994",

doi = "10.1021/j100052a011",

language = "English",

volume = "98",

pages = "60--67",

journal = "Journal of Physical Chemistry",

issn = "0022-3654",

publisher = "ACS American Chemical Society",

number = "1",

}

TY - JOUR

T1 - Excited State Spectra and Dynamics of Phenyl-Substituted Butadienes

AU - Wallace-Williams, Stacie E.

AU - Schwartz, Benjamin J.

AU - Møller, Søren

AU - Goldbeck, Robert A.

AU - Yee, W. Atom

AU - El-Bayoumi, M. Ashraf

AU - Kliger, David S.

PY - 1994

Y1 - 1994

N2 - A combination of steady-state and dynamic spectral measurements are used to provide new insights into the nature of the excited-state processes of all-trans-1,4-diphenyl-1,3-butadiene and several analogs: 1,4-diphenyl- 1,3-cyclopentadiene, 1,1,4,4-tetraphenylbutadiene, 1,2,3,4-tetraphenyl-1,3-cyclopentadiene, and E,E-diindanylidenylethane. Ground-state absorption, fluorescence, and nanosecond transient absorption measurements identify geometry changes upon excitation and provide information regarding the nature of the first excited singlet state. Femtosecond and picosecond transient absorption data indicate that phenyl torsional motion is not important to the excited-state dynamics and reveal alternative excited-state reaction pathways. The results demonstrate how molecular systems that are structually similar can exhibit different electronic properties and excited-state dynamics.

AB - A combination of steady-state and dynamic spectral measurements are used to provide new insights into the nature of the excited-state processes of all-trans-1,4-diphenyl-1,3-butadiene and several analogs: 1,4-diphenyl- 1,3-cyclopentadiene, 1,1,4,4-tetraphenylbutadiene, 1,2,3,4-tetraphenyl-1,3-cyclopentadiene, and E,E-diindanylidenylethane. Ground-state absorption, fluorescence, and nanosecond transient absorption measurements identify geometry changes upon excitation and provide information regarding the nature of the first excited singlet state. Femtosecond and picosecond transient absorption data indicate that phenyl torsional motion is not important to the excited-state dynamics and reveal alternative excited-state reaction pathways. The results demonstrate how molecular systems that are structually similar can exhibit different electronic properties and excited-state dynamics.

U2 - 10.1021/j100052a011

DO - 10.1021/j100052a011

M3 - Journal article

SN - 0022-3654

VL - 98

SP - 60

EP - 67

JO - Journal of Physical Chemistry

JF - Journal of Physical Chemistry

IS - 1

ER -