22400-26-6Relevant articles and documents
Milligan, D. E.,Jacox, M. E.
, p. 5157 - 5168 (1967)
Brennen, W. R.,Kistiakowski, G. B.
, p. 2695 - 2702 (1966)
Quantification of the 248 nm photolysis products of HCNO (fulminic Acid)
Feng, Wenhui,Hershberger, John F.
, p. 829 - 837 (2014/03/21)
IR diode laser spectroscopy was used to detect the products of HCNO (fulminic acid) photolysis at 248 nm. Five product channels are energetically possible at this photolysis wavelength: O + HCN, H + (NCO), CN + OH, CO + NH, and HNCO. In some experiments, isotopically labeled 18O2, 15N18O and C2D6 reagents were included into the photolysis mixture in order to suppress and/or isotopically label possible secondary reactions. HCN, OC18O, C18O, NCO, DCN, and NH molecules were detected upon laser photolysis of HCNO/reagents/buffer gas mixtures. Analysis of the yields of product molecules leads to the following photolysis quantum yields: 1a (O + HCN) = 0.39 ± 0.07, 1b (H + (NCO)) = 0.21 ± 0.04, 1c (CN + OH) = 0.16 ± 0.04, 1d (CN + NH(a1Δ)) = 0.19 0.03, and 1e (HNCO) = 0.05 ± 0.02, respectively. The uncertainties include both random errors (1σ) and consideration of major sources of systematic error. In conjunction with the photolysis experiment, the H + HCNO reaction was investigated. Experimental data demonstrate that this reaction is very slow and does not contribute significantly to the secondary chemistry.
Kinetics of the C2(a3IIu) radical reacting with selected molecules and atoms
Becker,Donner,Freitas Dinis,Geiger,Schmidt,Wiesen
, p. 503 - 517 (2007/10/03)
Rate coefficients for reactions of the C2 radical in its a3IIu electronic state with H, N and O atoms and with C3O2, C4F6, H2, NO, N2O, C2H2, C2H4, C3 H4 and C6H6 were determined. This work represents the first study of reactions of C2(a3IIu) radicals with the atoms investigated at room temperature and 4 Torr total pressure. The bimolecular rate constants obtained for the atom reactions were kc2+o = (9.8 ± 1.0) × 10-11- , kc2+N = (2.8 ±1.0) × 10-11 and kc2+N-14, in units of cm3 s-1. In addition, the reaction C2 + O was found to be independent of total pressure in the range 2-60 Torr. For the reaction C2(a3IIu) + ethene (C2H4) a temperature and pressure independent rate constant of (9.5 × 1.2) × 10-11 cm3 s-1 was obtained in the temperature range 298-1000 K at 100 Torr total pressure and in the pressure range 5-100 Torr at 298 K. The following rate constants were determined at room temperature and a total pressure of 4 Torr for the reactions of C2(a3IIu) radicals with benzene (C6H6), acetylene (C2H2) and allene (C3H4): kc2+C6H6 = (4.9 ± 0.1) ×10-10, kc2+C2H2 = (1.0 ± 0.1) ± 10-10 and kc2+C3H4 = (1.9 ± 0.3) ×10-10, in units of cm3 s-1. The reaction C2 + NO was investigated at room temperature and 100 Torr total pressure, a rate constant kc2+NO = (6.8 ± 0.3) × 10-11 cm3 s-1 was obtained. The reaction C2 + N2O was studied at 4 Torr total pressure in the temperature range 300-700 K for which a temperature independent rate constant kc2+N2O = (3.1 ± 0.4)X 10-14 cm3 s-1 was determined. by Oldenbourg Wissenschaftsverlag, Muenchen.
