Synthesis of silicophosphates containing SiO_6-octahedra under ambient conditions - reactions of anhydrous H_3PO_4 with alkoxysilanes

摘要

Anhydrous H_3PO_4 reacts in diethylether solution at room temperature with ethoxysilanes to form silicophosphates which contain SiO6-units. A single crystal X-ray structure provides evidence for silicophosphate structures comprised of alternating SiO_4- and PO_4-tetrahedra as well as SiO_6-octahedra.