Ca0.40H1.20Nb2O6*H2O Groult D, Michel C, Raveau B Journal of Inorganic and Nuclear Chemistry 37 (1975) 2203-2205 Sur de nouveaux pyrochlores lacunaires d'ions bivalents synthetises par echanges d'ions Locality: synthetic _database_code_amcsd 0013040 10.512 10.512 10.512 90 90 90 *Fd3m .125 .125 .125 atom x y z occ Biso Ca .5 .5 .5 .2 .1 H .5 .5 .5 .6 .1 Nb 0 0 0 1.0 O .315 .125 .125 2.4 Wat .5 .5 .5 .5 3.0