Cavity Ringdown Spectroscopy of the à − X̃ Electronic Transition of the CH 3 C ( O ) O 2 Radical
نویسندگان
چکیده
Cavity ringdown spectra of the near IR Ã2A′ − X̃2A′′ electronic transition of acetyl peroxy radical and its perdeutero analogue are reported. The electronic origin for the CH3C(O)O2 is observed at 5582.5(5) cm−1. Extensive ab initio calculations have been carried out to predict frequencies and help assign the electronic origin, observed vibrational hot bands and several à state vibrational frequencies. An empirical absorption cross section for the origin of the Ã2A′ − X̃2A′′ transition is estimated at σCH3C(O)O2 = (1± 0.5) · 10−19 cm.
منابع مشابه
Observation of the à − X̃ Electronic Transition of the CF 3 O 2 Radical
The first observation of a sharp, structured electronic spectrum for a fluorinated alkyl peroxy radical is reported using the technique of cavity ringdown spectroscopy (CRDS). The T00 value for the Ã2A′ − X̃2A′′ transition of CF3O2 has been determined to be 6656(3) cm−1; values for à state vibrational frequencies have also been determined. Initial kinetic observations on CF3O2 have been carried ...
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