Ein neuer Strukturtyp an Gd2Ti0,78W0,56O6,22 (= Gd18Ti7W5O56)

A New Structure Type of Gd₂Ti_0.78W_0.56O_6.22 (= Gd₁₈Ti₇W₅O₅₆) The hitherto unknown compound Gd₂Ti_0.78W_0.56O_6.22 shows also an unkown structure-type of hexagonal symmetry (space group D–P6₃/mmc; a = 7.382, c = 23.49 Å). Parts of the structure are related to the monoclinic B-Gd₂O₃ and the pyrochlor structure.