Time-resolved photoelectron imaging of large anionic methanol clusters: (Methanol) n- (n∼145-535)

Aster Kammrath; Graham B. Griffin; Jan R R Verlet; Ryan M. Young; Daniel M. Neumark

doi:10.1063/1.2747618

Time-resolved photoelectron imaging of large anionic methanol clusters: (Methanol) n- (n∼145-535)

Aster Kammrath, Graham B. Griffin, Jan R R Verlet, Ryan M. Young, Daniel M. Neumark^*

^*Corresponding author for this work

Paula M. Trienens Institute for Sustainability and Energy

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

28 Scopus citations

Abstract

The dynamics of an excess electron in size-selected methanol clusters is studied via pump-probe spectroscopy with resolution of ∼120 fs. Following excitation, the excess electron undergoes internal conversion back to the ground state with lifetimes of 260-175 fs in (C H3 OH) n- (n=145-535) and 280-230 fs in (C D3 OD) n- (n=210-390), decreasing with increasing cluster size. The clusters then undergo vibrational relaxation on the ground state on a time scale of 760±250 fs. The excited state lifetimes for (C H3 OH) n- clusters extrapolate to a value of 157±25 fs in the limit of infinite cluster size.

Original language	English (US)
Article number	244306
Journal	Journal of Chemical Physics
Volume	126
Issue number	24
DOIs	https://doi.org/10.1063/1.2747618
State	Published - 2007

Funding

This research was funded by the National Science Foundation under Grant No. CHE-0350585.

ASJC Scopus subject areas

General Physics and Astronomy
Physical and Theoretical Chemistry

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10.1063/1.2747618

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title = "Time-resolved photoelectron imaging of large anionic methanol clusters: (Methanol) n- (n∼145-535)",

abstract = "The dynamics of an excess electron in size-selected methanol clusters is studied via pump-probe spectroscopy with resolution of ∼120 fs. Following excitation, the excess electron undergoes internal conversion back to the ground state with lifetimes of 260-175 fs in (C H3 OH) n- (n=145-535) and 280-230 fs in (C D3 OD) n- (n=210-390), decreasing with increasing cluster size. The clusters then undergo vibrational relaxation on the ground state on a time scale of 760±250 fs. The excited state lifetimes for (C H3 OH) n- clusters extrapolate to a value of 157±25 fs in the limit of infinite cluster size.",

author = "Aster Kammrath and Griffin, {Graham B.} and Verlet, {Jan R R} and Young, {Ryan M.} and Neumark, {Daniel M.}",

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language = "English (US)",

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journal = "Journal of Chemical Physics",

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T1 - Time-resolved photoelectron imaging of large anionic methanol clusters

T2 - (Methanol) n- (n∼145-535)

AU - Kammrath, Aster

AU - Griffin, Graham B.

AU - Verlet, Jan R R

AU - Young, Ryan M.

AU - Neumark, Daniel M.

N1 - Funding Information: This research was funded by the National Science Foundation under Grant No. CHE-0350585.

PY - 2007

Y1 - 2007

N2 - The dynamics of an excess electron in size-selected methanol clusters is studied via pump-probe spectroscopy with resolution of ∼120 fs. Following excitation, the excess electron undergoes internal conversion back to the ground state with lifetimes of 260-175 fs in (C H3 OH) n- (n=145-535) and 280-230 fs in (C D3 OD) n- (n=210-390), decreasing with increasing cluster size. The clusters then undergo vibrational relaxation on the ground state on a time scale of 760±250 fs. The excited state lifetimes for (C H3 OH) n- clusters extrapolate to a value of 157±25 fs in the limit of infinite cluster size.

AB - The dynamics of an excess electron in size-selected methanol clusters is studied via pump-probe spectroscopy with resolution of ∼120 fs. Following excitation, the excess electron undergoes internal conversion back to the ground state with lifetimes of 260-175 fs in (C H3 OH) n- (n=145-535) and 280-230 fs in (C D3 OD) n- (n=210-390), decreasing with increasing cluster size. The clusters then undergo vibrational relaxation on the ground state on a time scale of 760±250 fs. The excited state lifetimes for (C H3 OH) n- clusters extrapolate to a value of 157±25 fs in the limit of infinite cluster size.

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Time-resolved photoelectron imaging of large anionic methanol clusters: (Methanol) n- (n∼145-535)

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