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Titolo:
Kinetics of the reactions of Cl(P-2(1/2)) and Cl(P-2(3/2)) atoms with C2H6, C2D6, CH3F, C2H5F, and CH3CF3 at 298 K
Autore:
Hitsuda, K; Takahashi, K; Matsumi, Y; Wallington, TJ;
Indirizzi:
Nagoya Univ, Solar Terr Environm lab, Aichi 4428507, Japan Nagoya Univ Aichi Japan 4428507 Terr Environm lab, Aichi 4428507, Japan Nagoya Univ, Grad Sch Sci, Aichi 4428507, Japan Nagoya Univ Aichi Japan 4428507 Univ, Grad Sch Sci, Aichi 4428507, Japan Ford Motor Co, Ford Res Lab, Dearborn, MI 48121 USA Ford Motor Co Dearborn MI USA 48121 Ford Res Lab, Dearborn, MI 48121 USA
Titolo Testata:
JOURNAL OF PHYSICAL CHEMISTRY A
fascicolo: 21, volume: 105, anno: 2001,
pagine: 5131 - 5136
SICI:
1089-5639(20010531)105:21<5131:KOTROC>2.0.ZU;2-P
Fonte:
ISI
Lingua:
ENG
Soggetto:
LASER MAGNETIC-RESONANCE; CL ATOMS; GAS-PHASE; ATMOSPHERIC CHEMISTRY; ANGULAR-DISTRIBUTIONS; CHLORINE ATOMS; RADICALS; PHOTODISSOCIATION; OXIDATION; METHANES;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
32
Recensione:
Indirizzi per estratti:
Indirizzo: Matsumi, Y Nagoya Univ, Solar Terr Environm lab, Honohara 3-13, Aichi 4428507, Japan Nagoya Univ Honohara 3-13 Aichi Japan 4428507 i 4428507, Japan
Citazione:
K. Hitsuda et al., "Kinetics of the reactions of Cl(P-2(1/2)) and Cl(P-2(3/2)) atoms with C2H6, C2D6, CH3F, C2H5F, and CH3CF3 at 298 K", J PHYS CH A, 105(21), 2001, pp. 5131-5136

Abstract

The title reactions were studied using laser flash photolysis in conjunction with laser-induced fluorescence techniques. Separate monitoring of the two spin-orbit states, Cl(P-2(1/2)) and Cl(P-2(3/2)), was used to measure the kinetics of the reactions of CI(P-2(3/2)) with C2H6, C2D6, CH3F, C2H5F, and CH3CF3, the reaction of Cl(P-2(1/2)) with C2H6, and the relaxation of Cl(P-2(1/2)) by collisions with C2H6, C2D6, CH3F, C2H5F, and CH3CF3. Measuredreaction rate constants were (units of cm(3) molecule(-1) s(-1)): k(Cl(P-2(3/2)) + C2H6) = (5.85 +/- 0.55) x 10(-11) k(Cl(P-2(3/2)) + C2D6) = (1.87 +/- 0.12) x 10(-11), k(Cl(P-2(3/2)) + CH3F)= (2.7 +/- 0.2) x 10(-13), k(Cl(P-2(3/2)) + CH3CH2F) = (6.8 +/- 0.5) x 10(-12), and k(Cl(P-2(3/2)) + CH3CF3)< 1 x 10(-14) cm(3) molecule(-1) s(-1). Measured relaxation rate constantsfor deactivation of Cl(P-2(1/2)) to Cl(P-2(3/2)) via collisions with C2H6. C2D6, CH3F, C2H5F, CH3CF3, and CF4 were (1.22 +/- 0.09) x 10(-10), (2.4 +/- 0.2) x 10(-10), (6.3 +/- 0.5) x 10-(11), (1.9 +/- 0.2) x 10(-10) (2.0 +/-0.2) x 10(-10), and (2.3 +/- 0.4) x 10(-11), respectively. Collisions of Cl(P-2(1/2)) With C2H6 and C2D6 resulted mainly in the relaxation of Cl(P-2(1/2)) to Cl(P-2(3/2)) and not in the reactive formation of HCl (DCl). The rate constant of the reactive path for Cl(P-2(1/2)) + C2H6 was < 3 x 10(-11)cm(3) molecule(-1) s(-1).

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Documento generato il 30/03/20 alle ore 10:11:58