Mass spectrometric evidence for the very high stability f gaseous ThIr and ThPt and method of calculating dissociation energies of diatomic intermetallic compounds with multiple bonds

Abstract

The dissociation energes, D 0 0, of the molecules ThIr and ThPt have been measured by high temperature Knudsen cell mass spectrometry as 136.4=10 and 130.7=10 kcal mole −1 or 570.7±41.8 and 546.6±41.8 kJ mole −1, respectively. A method is proposed for the calculation of dissociation energies of gaseous intermetallic compounds with multiple bonds.