Ba3 F9 O Ta Crosnier-Lopez M, Duroy H, Fourquet J, Laligant Y European Journal of Solid State and Inorganic Chemistry 32 (1995) 457-468 Synthesis and crystal structure of Ba3 Ta O F9 _cod_database_code 1000393 _database_code_amcsd 0012597 5.9422 26.39499 5.9590 90 90 90 Cmcm atom x y z occ U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) Ta1 0 .16318 .25 .0291 .0261 .0229 0 0 0 Ba1 0 .31269 .25 .0535 .0179 .0561 0 0 0 Ba2 0 .55842 .25 .0182 .0185 .0239 0 0 0 Ba3 0 .94031 .25 .0245 .0221 .0165 0 0 0 O1 .246 0 0 .5 .0165 .0376 .0152 0 0 .0015 F1 .246 0 0 .5 .0165 .0376 .0152 0 0 0 F2 0 .0867 .25 .0951 .0323 .0793 0 0 0 F3 .228 .1390 .0232 .1300 .1286 .1078 -.0202 .0926 -.0142 F4 0 .4110 .25 .1557 .0266 .2365 0 0 0 F5 .151 .2187 .0961 .5 .1309 .0307 .1169 -.0136 .0752 .0063