B̃2A′-X̃2A′ detection of vibrationally excited HCO produced by the O(3P)+C2H4 reaction

摘要: The distribution of rotational and vibrational energy in HCO produced by the O(3P)+C2H4 reaction has been measured using laser-induced fluorescence detection via B2A′-X2A′ transition. Over a wavelength range 248–290 nm, our experiments have shown that is formed both ground state at least six vibrationally excited states with up to two quanta C-O stretch bending mode. Dispersed were conducted positively assign all bands. confirmed many bands, including B(000)-X(000) band, are affected overlap other Spectral modeling was used separate contributions overlapping B-X bands determine nascent temperature ∼600 K, corresponding ∼6% total from reaction. distributions determined for different average collision energies fit temperatures ...