PHOTOINITIATED CHARGE-TRANSFER IN N2O -AR

Abstract

Vibrationally structured electronic transitions of N2O+–Ar have been observed by measuring the wavelength-dependent yields of the photodissociation reactions to yield N2O+ or Ar+. There appear to be four structured overlapping electronic band systems which are distinguished by vibrational spacings and by their propensity towards production of either N2O+ or Ar+. Variations in the Ar+/N2O+ photoproduct ratio with wavelength are explained as due to vibrational predissociation on different potential-energy surfaces correlating with either Ar+ or N2O+ products. The first band system, observed exclusively at the N2O mass, has its origin close to 445 nm, corresponding approximately to the differen..