Wavelength dependence of the I(52P12,32) branching ratio from ICN Ã state photolysis

Quantum yields for the production of I(5²P$\text{1}\text{2}$) atoms from the photolysis of ICN in the à state continuum are presented as a function of wavelength. Evidence is presented for the existence of at least three electronic states giving rise to the absorption spectra. Primary photophysical processes involved in the dissociation of ICN are discussed.