Dissociation Energies of GeCu, GeCo, GeFe, and GeCr

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Abstract
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 = Ge2 + 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.