Magnetic Rotation Spectrum and Heat of Dissociation of the Sodium Molecule

Abstract
Wood's magnetic rotation spectrum of Na2 had been extended by the method previously used with Li2 and K2, to higher vibrational levels. This leaves a very short extrapolation to dissociation. The energy of dissociation of the normal molecule, is D0=0.76±0.02 volt, which is in good agreement with the best chemical data.