A32+Te6+M32+ X25+O14 (A = Pb, Ba, Sr; M = Zn, Mg, Co, Mn, Cu, Cd; X = P, As, V) compounds and Pb3WZn3P2O14, all with Ca3Ga2Ge4O14 structure (space group P321), were prepared by solid-phase synthesis in air at 600–1000°C. Most compounds melt incongruently or experience solid-phase
decomposition.
Original Russian Text © B.V. Mill’, 2009, published in Zhurnal Neorganicheskoi Khimii, 2009, Vol. 54, No. 8, pp. 1270–1274.