Über Erdalkalioxoargentate. I. Strontiumargentat SrAg6O4

On Alkaline Earth Oxoargentates. I. Strontiumargentate SrAg₆O₄ Single crystals of SrAg₆O₄ were prepared at 400–500°C and 4000 atm. O₂-pressure. The X-ray investigation of the single crystals shows the orthorhombic space group D–Pnna (a = 6.518, b = 12.416, c = 8.909 Å). Sr²⁺ is octahedral and most of the Ag⁺ surrounded by weakly angled dumbbells of oxygen. In addition of these configurations metallic regions were found.