NO(A 2∑ +) production by photodissociation of nitrites and of CF 3NO in the 1200 – 1700 Å region

Abstract

The fluorescence of NO(A 2∑ +), produced by the photodissociation of deuteromethyl nitrite, ethyl nitrite, isopropyl nitrite and trifluoronitrosomethane, was studied using synchroton radiation as the source of excitation in the 1200 – 1700 Å spectral region. The relative quantum yield for NO(A 2∑ +) production at 1400 Å was measured; fluorescence excitation spectra for NO(A, v′ = 0 and v′ = 1) are reported and are compared with the absorption spectra. The results are discussed in terms of a statistical energy distribution among the fragments, with particular emphasis on possible deviation from RRKM predictions in the case of vibrational energy disposal.