Dynamics of photodissociation of XeF2 in organic solvents

Greg T. Dunning; Thomas J. Preston; Andrew J. Orr-Ewing; Stuart J. Greaves; Gregory M. Greetham; Ian P. Clark; Michael Towrie

doi:10.1039/c4cp01854k

Dynamics of photodissociation of XeF2 in organic solvents

Greg T. Dunning, Thomas J. Preston, Andrew J. Orr-Ewing^*, Stuart J. Greaves, Gregory M. Greetham, Ian P. Clark, Michael Towrie

^*Corresponding author for this work

Research output: Contribution to journal › Article (Academic Journal) › peer-review

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Abstract

Transient electronic absorption measurements with 1 ps time resolution follow XeF2 photoproducts in acetonitrile and chlorinated solvents. Ultraviolet light near 266 nm promptly breaks one Xe-F bond, and probe light covering 320-700 nm monitors the products. Some of the cleaved F atoms remain in close proximity to an XeF fragment and perturb the electronic states of XeF. The time evolution of a perturbed spectral feature is used to monitor the FXe-F complex population, which decays in less than 5 ps. Decay can occur through geminate recombination, diffusive separation or reaction of the complex with the solvent.

Original language	English
Pages (from-to)	16095-16102
Number of pages	8
Journal	Physical Chemistry Chemical Physics
Volume	16
Issue number	30
Early online date	23 Jun 2014
DOIs	https://doi.org/10.1039/c4cp01854k
Publication status	Published - 2014

Keywords

CN RADICAL REACTIONS
MATRIX-ISOLATED XEF
MOLECULAR-DYNAMICS
EMISSION-SPECTRA
XENON DIFLUORIDE
LIQUID-PHASES
GAS
ABSORPTION
SPECTROSCOPY
PHOTOLYSIS

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10.1039/c4cp01854k

XeF2 PCCP 2014Accepted author manuscript, 878 KB

http://pubs.rsc.org/en/Content/ArticleLanding/2014/CP/C4CP01854K#!divAbstract

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NEW HORIZONS IN CHEMICAL AND PHOTOCHEMICAL DYNAMICS
Orr-Ewing, A. J. (Principal Investigator) & Ashfold, M. N. R. (Co-Principal Investigator)
1/10/08 → 1/04/14
Project: Research

Cite this

@article{15c64179350f4aacba4f8d24b65e426b,

title = "Dynamics of photodissociation of XeF2 in organic solvents",

abstract = "Transient electronic absorption measurements with 1 ps time resolution follow XeF2 photoproducts in acetonitrile and chlorinated solvents. Ultraviolet light near 266 nm promptly breaks one Xe-F bond, and probe light covering 320-700 nm monitors the products. Some of the cleaved F atoms remain in close proximity to an XeF fragment and perturb the electronic states of XeF. The time evolution of a perturbed spectral feature is used to monitor the FXe-F complex population, which decays in less than 5 ps. Decay can occur through geminate recombination, diffusive separation or reaction of the complex with the solvent.",

keywords = "CN RADICAL REACTIONS, MATRIX-ISOLATED XEF, MOLECULAR-DYNAMICS, EMISSION-SPECTRA, XENON DIFLUORIDE, LIQUID-PHASES, GAS, ABSORPTION, SPECTROSCOPY, PHOTOLYSIS",

author = "Dunning, {Greg T.} and Preston, {Thomas J.} and Orr-Ewing, {Andrew J.} and Greaves, {Stuart J.} and Greetham, {Gregory M.} and Clark, {Ian P.} and Michael Towrie",

year = "2014",

doi = "10.1039/c4cp01854k",

language = "English",

volume = "16",

pages = "16095--16102",

journal = "Physical Chemistry Chemical Physics",

issn = "1463-9076",

publisher = "Royal Society of Chemistry",

number = "30",

}

TY - JOUR

T1 - Dynamics of photodissociation of XeF2 in organic solvents

AU - Dunning, Greg T.

AU - Preston, Thomas J.

AU - Orr-Ewing, Andrew J.

AU - Greaves, Stuart J.

AU - Greetham, Gregory M.

AU - Clark, Ian P.

AU - Towrie, Michael

PY - 2014

Y1 - 2014

N2 - Transient electronic absorption measurements with 1 ps time resolution follow XeF2 photoproducts in acetonitrile and chlorinated solvents. Ultraviolet light near 266 nm promptly breaks one Xe-F bond, and probe light covering 320-700 nm monitors the products. Some of the cleaved F atoms remain in close proximity to an XeF fragment and perturb the electronic states of XeF. The time evolution of a perturbed spectral feature is used to monitor the FXe-F complex population, which decays in less than 5 ps. Decay can occur through geminate recombination, diffusive separation or reaction of the complex with the solvent.

AB - Transient electronic absorption measurements with 1 ps time resolution follow XeF2 photoproducts in acetonitrile and chlorinated solvents. Ultraviolet light near 266 nm promptly breaks one Xe-F bond, and probe light covering 320-700 nm monitors the products. Some of the cleaved F atoms remain in close proximity to an XeF fragment and perturb the electronic states of XeF. The time evolution of a perturbed spectral feature is used to monitor the FXe-F complex population, which decays in less than 5 ps. Decay can occur through geminate recombination, diffusive separation or reaction of the complex with the solvent.

KW - CN RADICAL REACTIONS

KW - MATRIX-ISOLATED XEF

KW - MOLECULAR-DYNAMICS

KW - EMISSION-SPECTRA

KW - XENON DIFLUORIDE

KW - LIQUID-PHASES

KW - GAS

KW - ABSORPTION

KW - SPECTROSCOPY

KW - PHOTOLYSIS

U2 - 10.1039/c4cp01854k

DO - 10.1039/c4cp01854k

M3 - Article (Academic Journal)

C2 - 24967919

SN - 1463-9076

VL - 16

SP - 16095

EP - 16102

JO - Physical Chemistry Chemical Physics

JF - Physical Chemistry Chemical Physics

IS - 30

ER -

Dynamics of photodissociation of XeF2 in organic solvents

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Keywords

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NEW HORIZONS IN CHEMICAL AND PHOTOCHEMICAL DYNAMICS

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