Angular Momentum Distribution and Emission Spectrum of OH (2Σ+) in the Photodissociation of H2O

摘要: When water vapor absorbs light of wavelength less than 1350 A, an electronically excited OH fragment may be produced. This process has been observed, using wavelengths 1216, 1236, and 1302 the rotational vibrational excitation product 2Σ+ determined from its emission spectrum. Most energy beyond that necessary to produce goes into rotation molecule. Roughly one‐third molecules have one quantum energy, in these too, highest energetically allowed levels are strongly populated.Knowledge angular momentum allows estimation kinetic orbital H as it flies away center mass. is interpreted terms two‐body forces at large distances, with most probable dissociation corresponding orbiting interaction.