Gemischtvalente Oxovanadate, I Ein neuer Strukturtyp für die Verbindung BaV10O15/Oxovanadates with Mixed Valence, I A New Crystal Structure of BaV10O15

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Abstract
BaV10O15 was prepared by high temperature reaction of BaO and V2O3 in H2-atmosphere (T > 1800°). X-ray investigations of single crystals show a new structure type with octa-hedral coordination of V3+/V2+ (statistical distribution) and cuboctahedral surrounding of Ba2+ . Orthorhombic symmetry, space group D18 2h-Ccmb, a = 995,8; b = 1161,8; c = 941,0; Z = 4.