TY - JOUR
T1 - Laser magnetic resonance spectroscopy of ClO and kinetic studies of the reactions of ClO with NO and NO2
AU - Lee, Yuan-Pern
AU - Stimpfle, Richard M.
AU - Perry, Robert A.
AU - Mucha, John A.
AU - Evenson, Kenneth M.
AU - Jennings, Donald A.
AU - Howard, Carleton J.
PY - 1982/6
Y1 - 1982/6
N2 - Far‐infrared rotational transitions in ClO(X2∏3/2, υ = 0) have been observed using laser magnetic resonance (LMR) with an optically pumped spectrometer. Five observed transitions at wavelengths between 444 and 713 µm have been compared with values predicted with spectroscopic constants from the literature. LMR detection of ClO has been used to study its reactions with NO and NO2 in a discharge flow system under pseudo‐first‐order conditions for ClO. The measured rate constants are k(ClO + NO) = (7.1 ± 1.4) × 10−12 exp[(270 ± 50)/T] cm3/molec·s for the temperature range of 202 < T < 393 K; k(ClO + NO2 + M) = (2.8 ± 0.6) × 10−33 exp[(1090 ± 80)/T] cm6/molec2·s (M = He, 250 < T < 387 K), (3.5 ± 0.6) × 10−33 exp[(1180 ± 80)/T] (M = O2, 250 < T < 416 K), and (2.09 ± 0.3) × 10−31 (M = N2, T = 297 K). All measurements were made at low pressures, between 0.6 and 6.6 torr. These results are compared with those from other studies.
AB - Far‐infrared rotational transitions in ClO(X2∏3/2, υ = 0) have been observed using laser magnetic resonance (LMR) with an optically pumped spectrometer. Five observed transitions at wavelengths between 444 and 713 µm have been compared with values predicted with spectroscopic constants from the literature. LMR detection of ClO has been used to study its reactions with NO and NO2 in a discharge flow system under pseudo‐first‐order conditions for ClO. The measured rate constants are k(ClO + NO) = (7.1 ± 1.4) × 10−12 exp[(270 ± 50)/T] cm3/molec·s for the temperature range of 202 < T < 393 K; k(ClO + NO2 + M) = (2.8 ± 0.6) × 10−33 exp[(1090 ± 80)/T] cm6/molec2·s (M = He, 250 < T < 387 K), (3.5 ± 0.6) × 10−33 exp[(1180 ± 80)/T] (M = O2, 250 < T < 416 K), and (2.09 ± 0.3) × 10−31 (M = N2, T = 297 K). All measurements were made at low pressures, between 0.6 and 6.6 torr. These results are compared with those from other studies.
UR - http://www.scopus.com/inward/record.url?scp=84985315703&partnerID=8YFLogxK
U2 - 10.1002/kin.550140612
DO - 10.1002/kin.550140612
M3 - Article
AN - SCOPUS:84985315703
SN - 0538-8066
VL - 14
SP - 711
EP - 732
JO - International Journal of Chemical Kinetics
JF - International Journal of Chemical Kinetics
IS - 6
ER -