DISSOCIATION ENERGIES OF GECU GECO GEFE AND GECR

The molecules GeCu, GeCo, GeFe, and GeCr have been shown to exist in the vapor phase over liquid solutions of germanium and transition metal at temperatures above 1600°K. Using information derived from a combination of effusion and mass spectrometric techniques the equilibrium constants and energetics of the gaseous reactions GeX+Ge=Gea+X, where X=Co, Fe, and Cr and 2GeCu=Ge2+Cu2, have been determined. The dissociation energies of the molecules GeCu, GeCo, GeFe, and GeCr as obtained by the third-law method are 47.8±5, 56±6, 49.4±7, and 39.6±7 kcal/mole, respectively.