The use of electron impact dissociation and the photon-photon cascade technique to measure the lifetime of the B2Σ+ state of CN

The Influence of Collisional Transfers and Perturbations on Measured A and B State Lifetimes in CN

“…Thus, the influence of cascades can (as usual in molecular lifetime investigations) be completely disregarded in spite of the fact that one upper state ( H ) is known from which transitions to the B state have been observed. Indeed the measurement [9] is of one of the two described cases where photon-photon cascade technique has been applied to molecular lifetimes.…”

“…Average value heads v ' = 0-4. T = 61.1 i 7.6 Photon-photon coincidences [9]. Average value heads 64.2 ?…”

“…A number of experiments have been performed where the intensities of the various A-X bands were measured at a constant (low) CzNz pressure and various catalyser gases added in the same way as in the lifetime experiments. Indeed, the relative the shape of the curves is solely determined by the ratios kYA/AYX and uy/uA which then may be estimated by fitting (9) to Fig. 7.…”

Chemiluminescent and other processes leading to the excitation of cyanogen

“…Electron Impact Dissociation of Cyanides Electron impact dissociation of cyanides has been found to produce CN red and violet emissions. 42,89,116,181,201 Studies of these emissions have been used for the determination of cross section for CN formation or for the determination of excitation function. 89,116,201 Though no systematic studies for the intensity distribution in the red and violet systems seem to be available, the study of Tokue, Urisu, and Kuchitsu using HCN, CH3CN, C2N2, C1CN, and BrCN is fairly extensive.…”