Photoionization studies of sulfur radicals and products of their reactions

Bing Ming Cheng; Eh Piew Chew; Wen Ching Hung; Jürg Eberhard; Yuan-Pern Lee

doi:10.1107/S0909049597016075

Photoionization studies of sulfur radicals and products of their reactions

Bing Ming Cheng^*, Eh Piew Chew, Wen Ching Hung, Jürg Eberhard, Yuan-Pern Lee

^*Corresponding author for this work

Department of Applied Chemistry

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

9 Scopus citations

Abstract

A discharge flow-photoionization mass spectrometric system coupled to a synchrotron is employed to study intermediates and products of sulfur radical reactions related to atmospheric chemistry. Sulfur radicals are generated from reactions of oxygen or chlorine atoms with sulfur compounds in a flow tube. The gaseous reaction products are sampled into the ionization region via a three-stage differential pumping scheme. Photoionization spectra and ionization energies are measured by dispersing synchrotron radiation to ionize the samples. Using this technique, photoionization spectra and ionization energies of HSO, CH₃SO, C₂H₅SO, HSCl, and some secondary reaction products, SSCl, HSSCl, HSSSH, CH₃SOH and CH₃SS(O)CH₃, were measured for the first time.

Original language	English
Pages (from-to)	1041-1043
Number of pages	3
Journal	Journal of Synchrotron Radiation
Volume	5
Issue number	3
DOIs	https://doi.org/10.1107/S0909049597016075
State	Published - 1 May 1998

Keywords

Ionization energy
Photoionization mass spectrometry
Photoionization spectra
Sulfur radicals

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10.1107/S0909049597016075

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title = "Photoionization studies of sulfur radicals and products of their reactions",

abstract = "A discharge flow-photoionization mass spectrometric system coupled to a synchrotron is employed to study intermediates and products of sulfur radical reactions related to atmospheric chemistry. Sulfur radicals are generated from reactions of oxygen or chlorine atoms with sulfur compounds in a flow tube. The gaseous reaction products are sampled into the ionization region via a three-stage differential pumping scheme. Photoionization spectra and ionization energies are measured by dispersing synchrotron radiation to ionize the samples. Using this technique, photoionization spectra and ionization energies of HSO, CH3SO, C2H5SO, HSCl, and some secondary reaction products, SSCl, HSSCl, HSSSH, CH3SOH and CH3SS(O)CH3, were measured for the first time.",

keywords = "Ionization energy, Photoionization mass spectrometry, Photoionization spectra, Sulfur radicals",

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T1 - Photoionization studies of sulfur radicals and products of their reactions

AU - Cheng, Bing Ming

AU - Chew, Eh Piew

AU - Hung, Wen Ching

AU - Eberhard, Jürg

AU - Lee, Yuan-Pern

PY - 1998/5/1

Y1 - 1998/5/1

N2 - A discharge flow-photoionization mass spectrometric system coupled to a synchrotron is employed to study intermediates and products of sulfur radical reactions related to atmospheric chemistry. Sulfur radicals are generated from reactions of oxygen or chlorine atoms with sulfur compounds in a flow tube. The gaseous reaction products are sampled into the ionization region via a three-stage differential pumping scheme. Photoionization spectra and ionization energies are measured by dispersing synchrotron radiation to ionize the samples. Using this technique, photoionization spectra and ionization energies of HSO, CH3SO, C2H5SO, HSCl, and some secondary reaction products, SSCl, HSSCl, HSSSH, CH3SOH and CH3SS(O)CH3, were measured for the first time.

AB - A discharge flow-photoionization mass spectrometric system coupled to a synchrotron is employed to study intermediates and products of sulfur radical reactions related to atmospheric chemistry. Sulfur radicals are generated from reactions of oxygen or chlorine atoms with sulfur compounds in a flow tube. The gaseous reaction products are sampled into the ionization region via a three-stage differential pumping scheme. Photoionization spectra and ionization energies are measured by dispersing synchrotron radiation to ionize the samples. Using this technique, photoionization spectra and ionization energies of HSO, CH3SO, C2H5SO, HSCl, and some secondary reaction products, SSCl, HSSCl, HSSSH, CH3SOH and CH3SS(O)CH3, were measured for the first time.

KW - Ionization energy

KW - Photoionization mass spectrometry

KW - Photoionization spectra

KW - Sulfur radicals

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Photoionization studies of sulfur radicals and products of their reactions

Abstract

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