Kinetics of Disappearance of the CN Radical Formed from C2N2

Abstract

The flash photolysis technique has been extended to measurement of absolute concentrations and kinetics of small molecules having fine-lined absorption spectra. The rates of disappearance of CN radicals in cyanogen, cyanogen chloride, hydrogen, and hydrocarbons have been determined. The disappearance of CN in cyanogen was found to obey the expression d(CN)/dt=—k(CN)(C2N2), where k = 7.3×107 e−2100/RT liters/mole sec over the temperature range 301° to 447°K.