Kinetics of the unimolecular decomposition of iso-C[sub 3]H. Weak collision effects in helium, argon, and nitrogen

Kinetics of the unimolecular decomposition of iso-C[sub 3]H. Weak collision effects in helium, argon, and nitrogen

Rate constants for the unimolecular decomposition of iso-C[sub 3]H[sub 7] have been determined by laser flash photolysis coupled with photoionization mass spectrometry, over the temperature range 720--910 K. The reaction was studied in He, at densities of (3--30) [times] 10[sup 16] atoms cm[sup [min...

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Veröffentlicht in:Journal of physical chemistry (1952) 1993-04, Vol.97:17
Hauptverfasser: Seakins, P.W., Robertson, S.H., Pilling, M.J., Slagle, I.R., Gmurczyk, G.W., Bencsura, A., Gutman, D., Tsang, W.
Format: Artikel
Sprache:eng
Schlagworte:
400102 - Chemical & Spectral Procedures
400201 - Chemical & Physicochemical Properties
664300 - Atomic & Molecular Physics- Collision Phenomena- (1992-)
ALKYL RADICALS
ARGON
ATOMIC AND MOLECULAR PHYSICS
BASIC INTERACTIONS
CHEMICAL REACTIONS
COLLISIONS
DATA
DECOMPOSITION
ELEMENTS
EXPERIMENTAL DATA
FLUIDS
GASES
HELIUM
INFORMATION
INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY
INTERACTIONS
KINETICS
NITROGEN
NONMETALS
NUMERICAL DATA
PROPYL RADICALS
RADICALS
RARE GASES
REACTION KINETICS
WEAK INTERACTIONS
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Zusammenfassung:Rate constants for the unimolecular decomposition of iso-C[sub 3]H[sub 7] have been determined by laser flash photolysis coupled with photoionization mass spectrometry, over the temperature range 720--910 K. The reaction was studied in He, at densities of (3--30) [times] 10[sup 16] atoms cm[sup [minus]3]. More limited measurements were made for Ar and N[sub 2]. The reaction is in the falloff region under all conditions studied. Three methods of data analysis were employed. 49 refs., 8 figs., 5 tabs.
ISSN:0022-3654
1541-5740
DOI:10.1021/j100119a032