INFRARED-SPECTRA OF GES, SGES, SGEO, AND OGEO IN SOLID ARGON

New germanium sulfides, oxides, and mixed sulfide-oxides were prepared from the reaction of elemental sulfur with elemental germanium and oxygen and characterized by infrared absorption spectroscopy. The GeS diatomic product showed absorptions at 564.6, 566.8, 568.1, 569.2, and 571.7 cm-1 for natural isotopic germanium. At higher sulfur concentrations SGeS revealed absorptions at 649.3, 653.3, 655.4, 657.5, and 661.8 cm-1 for the nu-3 fundamental. The Ge-O vibration in SGeO was observed as a weak band with germanium isotopic components at 981.5, 984.3, 985.8, 987.3, and 990.4 cm-1. The nu-3 fundamental of GeO2 exhibited new bands at 1048.2, 1052.3, 1054.5, 1056.7, and 1061.3 cm-1. Sulfur and oxygen isotopic absorptions confirmed the above assignments.