Determination of absolute rate data for the reactions of atomic potassium, K(4 2S 1 2), with CH3Cl, C2H5Cl, (CH3)2CHCL, C2H5CHClCH3 and (CH3)3CCl as a function of temperature by time-resolved atomic resonance absorption spectroscopy

David Husain, Yook Heng Lee

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8 Citations (Scopus)

Abstract

We present a kinetic study of the reactions of atomic potassium in its electronic ground state K(4 2S 1 2) with the alkyl chlorides CH3Cl, C2H5Cl, (CH3)2CHCl, C2H5CHClCH3 and (CH3)3CCl. The ground state atom was generated by pulsed irradiation and monitored photoelectrically in the single-shot mode by time-resolved atomic resonance absorption spectroscopy of the Rydberg doublet at λ = 404 nm (K(5 2PJ) ← K(4 2S 1 2)). Absolute rate constants kRCl for reaction were measured as a function of temperature, yielding the following results in Arrhenius form (kRCl = A exp(- E/RT), errors, 1σ: {A figure is presented} These constitute the first measurements of absolute bulk rate constants for these fundamental processes involving atomic potassium. Comparison is made, where possible, with relative rate data derived previously from competitive techniques using diffusion flames for which there is reasonable agreement.

Original languageEnglish
Pages (from-to)13-26
Number of pages14
JournalJournal of Photochemistry and Photobiology, A: Chemistry
Volume42
Issue number1
DOIs
Publication statusPublished - 1988
Externally publishedYes

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Absorption spectroscopy
Ground state
Potassium
Rate constants
potassium
absorption spectroscopy
Chlorides
ground state
diffusion flames
Irradiation
Atoms
Temperature
shot
Kinetics
temperature
chlorides
irradiation
kinetics
electronics
atoms

ASJC Scopus subject areas

  • Bioengineering
  • Physical and Theoretical Chemistry

Cite this

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title = "Determination of absolute rate data for the reactions of atomic potassium, K(4 2S 1 2), with CH3Cl, C2H5Cl, (CH3)2CHCL, C2H5CHClCH3 and (CH3)3CCl as a function of temperature by time-resolved atomic resonance absorption spectroscopy",
abstract = "We present a kinetic study of the reactions of atomic potassium in its electronic ground state K(4 2S 1 2) with the alkyl chlorides CH3Cl, C2H5Cl, (CH3)2CHCl, C2H5CHClCH3 and (CH3)3CCl. The ground state atom was generated by pulsed irradiation and monitored photoelectrically in the single-shot mode by time-resolved atomic resonance absorption spectroscopy of the Rydberg doublet at λ = 404 nm (K(5 2PJ) ← K(4 2S 1 2)). Absolute rate constants kRCl for reaction were measured as a function of temperature, yielding the following results in Arrhenius form (kRCl = A exp(- E/RT), errors, 1σ: {A figure is presented} These constitute the first measurements of absolute bulk rate constants for these fundamental processes involving atomic potassium. Comparison is made, where possible, with relative rate data derived previously from competitive techniques using diffusion flames for which there is reasonable agreement.",
author = "David Husain and Lee, {Yook Heng}",
year = "1988",
doi = "10.1016/1010-6030(88)80045-5",
language = "English",
volume = "42",
pages = "13--26",
journal = "Journal of Photochemistry and Photobiology A: Chemistry",
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TY - JOUR

T1 - Determination of absolute rate data for the reactions of atomic potassium, K(4 2S 1 2), with CH3Cl, C2H5Cl, (CH3)2CHCL, C2H5CHClCH3 and (CH3)3CCl as a function of temperature by time-resolved atomic resonance absorption spectroscopy

AU - Husain, David

AU - Lee, Yook Heng

PY - 1988

Y1 - 1988

N2 - We present a kinetic study of the reactions of atomic potassium in its electronic ground state K(4 2S 1 2) with the alkyl chlorides CH3Cl, C2H5Cl, (CH3)2CHCl, C2H5CHClCH3 and (CH3)3CCl. The ground state atom was generated by pulsed irradiation and monitored photoelectrically in the single-shot mode by time-resolved atomic resonance absorption spectroscopy of the Rydberg doublet at λ = 404 nm (K(5 2PJ) ← K(4 2S 1 2)). Absolute rate constants kRCl for reaction were measured as a function of temperature, yielding the following results in Arrhenius form (kRCl = A exp(- E/RT), errors, 1σ: {A figure is presented} These constitute the first measurements of absolute bulk rate constants for these fundamental processes involving atomic potassium. Comparison is made, where possible, with relative rate data derived previously from competitive techniques using diffusion flames for which there is reasonable agreement.

AB - We present a kinetic study of the reactions of atomic potassium in its electronic ground state K(4 2S 1 2) with the alkyl chlorides CH3Cl, C2H5Cl, (CH3)2CHCl, C2H5CHClCH3 and (CH3)3CCl. The ground state atom was generated by pulsed irradiation and monitored photoelectrically in the single-shot mode by time-resolved atomic resonance absorption spectroscopy of the Rydberg doublet at λ = 404 nm (K(5 2PJ) ← K(4 2S 1 2)). Absolute rate constants kRCl for reaction were measured as a function of temperature, yielding the following results in Arrhenius form (kRCl = A exp(- E/RT), errors, 1σ: {A figure is presented} These constitute the first measurements of absolute bulk rate constants for these fundamental processes involving atomic potassium. Comparison is made, where possible, with relative rate data derived previously from competitive techniques using diffusion flames for which there is reasonable agreement.

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U2 - 10.1016/1010-6030(88)80045-5

DO - 10.1016/1010-6030(88)80045-5

M3 - Article

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SP - 13

EP - 26

JO - Journal of Photochemistry and Photobiology A: Chemistry

JF - Journal of Photochemistry and Photobiology A: Chemistry

SN - 1010-6030

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