3744-29-4Relevant articles and documents
Quenching of CHF 1A'' (0,02 after Single Vibronic Level Excitation by the Diatomic Molecules H2, O2 and CO
Dornhoefer, G.,Hack, W.
, p. 485 - 490 (2007/10/02)
The elementary deactivation processes of CHF(, v'2) by H2(X1Σg+), O2(X3Σg-, and CO(X1Σ+) were studied in a quasistatic photolysis chamber.Determination of time and spectrally resolved laser-induced fluorescence of CHF (1A'', v'2) in single vibronic excited levels (SVL) (0 2 1A' (0,0,0)> was generated in the fluorescence cell by multiphoton dissociation (MPD) of CH2F2.The overall CHF(, v'2)-depletion rate constants: .Asignificant increase of the rate constants for higher vibronic states was observed.The contribution of vibration deactivation to the overall depletion of the initially excited state was found to be small (2 = 1 and Δv'2 = 2 respectively.The reaction mechanisms are discussed. - Keywords: Elementary Reactions / Energy Transfer / Photochemistry
A Photoelectron Spectroscopic Study of the Ground States of CH2F+ and CD2F+
Andrews, Lester,Dyke, John M.,Jonathan, Neville,Keddar, Noureddine,Morris, Alan,Ridha, Abed
, p. 2364 - 2368 (2007/10/02)
The fluorine atom/methyl fluoride reaction has been studied by photoelectron spectroscopy.A new product band with vibrational components at 9.04 +/- 0.01 eV adiabatic and 9.22 +/- 0.01 eV vertical ionization energies is assigned to the CH2F free radical.The ν'= 0-1 vibronic separation measured as 1450 +/- 30 cm-1 is due to the C-F stretching fundamental of the ground state of CH2F+; this vibronic interval was 1530 +/- 30 cm-1 for CD2F+.The positive deuterium shift for CH2F+ is due to interaction with the H-C-H bending mode, which shifts below the C-F stretching mode on deuteration.The substantial increase in the C-F stretching modes for CH2F+ and CD2F+, as compared to 1163- and 1193-cm-1 values for the CH2F and CD2F free radicals in solid argon, respectively, is due to increased net C-F bonding in the cations.
