Über die Struktur und Eigenschaften der Halbmetalle. VII. Neubestimmung der Struktur des glasigen Selens nach verbesserten röntgenographischen Methoden

Abstract

The X-ray analyses of amorphous selenium, arsenic and antimony hitherto described in the literature do not agree with chemical conceptions. An improved experimental technique and the elimination of certain sources of error give atomic distribution curves which are now in good agreement with chemical ideas. Experiments on selenium and AsSe glass are described. In selenium glass the structural units are high- and low-molecular rings bound by van der Waals forces. The close packing of the chains in hexagonal selenium is destroyed