Measurement of absolute rate data for the reaction of atomic potassium, K(42S½), with CH3F, C2H5F, C6H5F, CH3Br, C2H5Br, HCl and HBr by time‐resolved atomic resonance absorption spectroscopy at λ = 404 nm (K(52PJ) ← K(42S½))

D. Husain, Yook Heng Lee

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

We present a kinetic study of atomic potassium in its electronic ground state, K(42S½), generated in the “single‐shot mode” by pulsed irradiation at elevated temperatures and monitored by time‐resolved atomic resonance absorption spectroscopy using the Rydberg doublet at λ = 404 nm (K[52PJ]←K[42S½]). Profiles for the decay of atomic potassium in the presence of various halogenated reactants were recorded at different temperatures, yielding the following Arrhenius parameters (kR = A exp(−E/RT), errors 1σ): (Table presented) A limited body of data is reported for k(K + C2H5Br) = 3.6 × 10−11 cm3 molecule−1 s−1 for the temperature range 704–733 K. These results for atomic potassium constitute a new body of absolute rate data which are compared with some previous results for reactions of atomic potassium with other reactants, and for reactions of atomic sodium, also determined by time‐resolved atomic resonance absorption spectroscopy. The data for HCl and HBr are finally compared with early estimates reported using diffusion flames.

Original languageEnglish
Pages (from-to)223-240
Number of pages18
JournalInternational Journal of Chemical Kinetics
Volume20
Issue number3
DOIs
Publication statusPublished - 1988
Externally publishedYes

Fingerprint

Absorption spectroscopy
Spectrum Analysis
potassium
Potassium
absorption spectroscopy
Temperature
diffusion flames
Ground state
temperature
Sodium
sodium
Irradiation
Kinetics
irradiation
ground state
kinetics
decay
estimates
profiles
electronics

ASJC Scopus subject areas

  • Biochemistry
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry

Cite this

@article{bc2edfb15f114fe0bbfb1528a05e86fd,
title = "Measurement of absolute rate data for the reaction of atomic potassium, K(42S½), with CH3F, C2H5F, C6H5F, CH3Br, C2H5Br, HCl and HBr by time‐resolved atomic resonance absorption spectroscopy at λ = 404 nm (K(52PJ) ← K(42S½))",
abstract = "We present a kinetic study of atomic potassium in its electronic ground state, K(42S½), generated in the “single‐shot mode” by pulsed irradiation at elevated temperatures and monitored by time‐resolved atomic resonance absorption spectroscopy using the Rydberg doublet at λ = 404 nm (K[52PJ]←K[42S½]). Profiles for the decay of atomic potassium in the presence of various halogenated reactants were recorded at different temperatures, yielding the following Arrhenius parameters (kR = A exp(−E/RT), errors 1σ): (Table presented) A limited body of data is reported for k(K + C2H5Br) = 3.6 × 10−11 cm3 molecule−1 s−1 for the temperature range 704–733 K. These results for atomic potassium constitute a new body of absolute rate data which are compared with some previous results for reactions of atomic potassium with other reactants, and for reactions of atomic sodium, also determined by time‐resolved atomic resonance absorption spectroscopy. The data for HCl and HBr are finally compared with early estimates reported using diffusion flames.",
author = "D. Husain and Lee, {Yook Heng}",
year = "1988",
doi = "10.1002/kin.550200304",
language = "English",
volume = "20",
pages = "223--240",
journal = "International Journal of Chemical Kinetics",
issn = "0538-8066",
publisher = "John Wiley and Sons Inc.",
number = "3",

}

TY - JOUR

T1 - Measurement of absolute rate data for the reaction of atomic potassium, K(42S½), with CH3F, C2H5F, C6H5F, CH3Br, C2H5Br, HCl and HBr by time‐resolved atomic resonance absorption spectroscopy at λ = 404 nm (K(52PJ) ← K(42S½))

AU - Husain, D.

AU - Lee, Yook Heng

PY - 1988

Y1 - 1988

N2 - We present a kinetic study of atomic potassium in its electronic ground state, K(42S½), generated in the “single‐shot mode” by pulsed irradiation at elevated temperatures and monitored by time‐resolved atomic resonance absorption spectroscopy using the Rydberg doublet at λ = 404 nm (K[52PJ]←K[42S½]). Profiles for the decay of atomic potassium in the presence of various halogenated reactants were recorded at different temperatures, yielding the following Arrhenius parameters (kR = A exp(−E/RT), errors 1σ): (Table presented) A limited body of data is reported for k(K + C2H5Br) = 3.6 × 10−11 cm3 molecule−1 s−1 for the temperature range 704–733 K. These results for atomic potassium constitute a new body of absolute rate data which are compared with some previous results for reactions of atomic potassium with other reactants, and for reactions of atomic sodium, also determined by time‐resolved atomic resonance absorption spectroscopy. The data for HCl and HBr are finally compared with early estimates reported using diffusion flames.

AB - We present a kinetic study of atomic potassium in its electronic ground state, K(42S½), generated in the “single‐shot mode” by pulsed irradiation at elevated temperatures and monitored by time‐resolved atomic resonance absorption spectroscopy using the Rydberg doublet at λ = 404 nm (K[52PJ]←K[42S½]). Profiles for the decay of atomic potassium in the presence of various halogenated reactants were recorded at different temperatures, yielding the following Arrhenius parameters (kR = A exp(−E/RT), errors 1σ): (Table presented) A limited body of data is reported for k(K + C2H5Br) = 3.6 × 10−11 cm3 molecule−1 s−1 for the temperature range 704–733 K. These results for atomic potassium constitute a new body of absolute rate data which are compared with some previous results for reactions of atomic potassium with other reactants, and for reactions of atomic sodium, also determined by time‐resolved atomic resonance absorption spectroscopy. The data for HCl and HBr are finally compared with early estimates reported using diffusion flames.

UR - http://www.scopus.com/inward/record.url?scp=84985348708&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84985348708&partnerID=8YFLogxK

U2 - 10.1002/kin.550200304

DO - 10.1002/kin.550200304

M3 - Article

AN - SCOPUS:84985348708

VL - 20

SP - 223

EP - 240

JO - International Journal of Chemical Kinetics

JF - International Journal of Chemical Kinetics

SN - 0538-8066

IS - 3

ER -