PREDISSOCIATIONS OF THE C12O AND C13O MOLECULES

Abstract

The Ångström bands of C¹²O and C¹³O have been photographed with a high dispersion spectrograph and the predissociations previously reported in these bands have been re-examined. The predissociations provide good evidence that C¹²O has a dissociation limit 89595 ± 30 cm.⁻¹ above the ν = 0 level of the ground state. The fourth positive (A¹Π − X¹Σ) bands have been re-examined and it has been shown that, contrary to earlier reports, there is no evidence for predissociation in the A¹Π state.