Determination by the mass spectrometric knudsen cell method of the dissociation energies of the group IB chalcogenides

The dissociation or atomization energies of the following gaseous group IB chalcogenides were determined to be (in kcal/mole 1 kcal = 4.184 kJ. ): magnified image The atomization energies of the remaining subchalcogenides were estimated with D o °, at ( M 2 X )/ D o ° ( MX ) = 2.11 ± 0.03, derived from the above results. In addition, the dissociation energies of the molecules CoAu and NiAu were confirmed.