Production of O2 Herzberg states in the deep UV photodissociation of ozone

Abstract

High-resolution imaging experiments combined with new electronic structure and dynamics calculations strongly indicate that the O (-Rfpag-temp) + O2 products with very low kinetic energy release (Etr <0.2 eV) formed in the deep UV (226 nm) photodissociation of ozone reflect excitation of the Herzberg states of O2: A′ 3Δu (v=0,1,2) and A′ 3Δ u+ (v=0,1). This interpretation contradicts the earlier assignment to very high (v26) vibrational states of O2 ( 3Δ u-). © 2009 American Institute of Physics.