Detail of "353-85-5"

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Photoabsorption and fluorescence excitation spectra of CF3CN in the region of 6-41 eV

Photoabsorption and fluorescence excitation spectra of CF3CN in the region of 6-41 eV. Ibuki, Toshio; Okada, Kazumasa (Institute for Molecular Science, Myodaiji, Okazaki 444, Japan). Chemical Physics Letters, 263(1,2), 173-177 (English) 1996 Elsevier. CODEN: CHPLBC. ISSN: 0009-2614.There are some reagents like 353-85-5 is used in this study. DOCUMENT TYPE: Journal CA Section: 73 (Optical, Electron, and Mass Spectroscopy and Other Related Properties) Photoabsorption and fluorescence cross sections of CF3CN were measured at 6-41 eV by using synchrotron radiation. The bands obsd. were assigned as the Rydberg transitions of the lone pair electrons on N and F atoms. The CYN and C-F stretching and FCF bending frequencies are excited in the Rydberg states. Emissions from the CN(A 2Pi, B 2S+?X 2S+) transitions were obsd. even in the ionization region, and increased at u22 eV by the ionization of the (2e)-1 and (4a1)-1 valence electrons. .

The kinetics and mechanisms of the reactions of atomic oxygen(3P) atoms with methyl cyanide and trifluoromethyl cyanide

The kinetics and mechanisms of the reactions of atomic oxygen(3P) atoms with methyl cyanide and trifluoromethyl cyanide. Bonanno, R. J.; Timmons, Richard B.; Stief, Louis J.; Klemm, R. Bruce (Dep. Chem., Cathol. Univ. America, Washington, D. C., USA). J. Chem. Phys., 66(1), 92-8 (English) 1977. CODEN: JCPSA6. DOCUMENT TYPE: Journal CA Section: 22 (Physical Organic Chemistry) Section cross-reference(s): 67 Abs. rate consts. for the reactions of O(3P) atoms with MeCN and CF3CN were measured at 383-500 K using the flash photolysis-resonance fluorescence method under conditions which minimized complications from secondary reactions. The Arrhenius expression obtained for O(3P) + MeCN was (7.27 .+-. 1.75) .times. 75-05-8 and 353-85-5 which are cas registry numbers are also used here. 10-13 exp(-4770 .+-. 200/RT) cm3 mol.-1 s-1, while that for the O(3P) + CF3CN reaction was (14.2 .+-. 5.2) .times. 10-13 exp(-6130 .+-. 310)/RT) cm3 mol-1 s-1. Mechanistic information concering these reactions was obtained from kinetic isotope-effect studies using CD3CN in place of MeCN and from fast flow-tube studies of both reactions using direct mass-spectrometric and ESR detection methods. The lack of an isotope effect in the CD3CN/MeCN expts. coupled with the reaction products identified mass spectrometrically led to the conclusion that the major reaction channel in both systems involves displacement of CH3 and CF3 by O(3P). In addn., there may be some contribution to the overall reaction from a direct mol. rearrangement for both O(3P) + MeCN and O(3P) + CF3CN and from abstractiion of H atom for O(3P) + MeCN, the latter being more significant at higher temps. The kinetic parameters were compared with values from O(3P) reactions with other nitriles, alkynes, and olefins. In all 3 reaction classes, the major initial step is assumed to be interaction of the electrophilic O(3P) atom with the .pi. bonds of the substrate mols. .