Ca3 Fe2 O8 Ti Rodriguez Carvajal J, Vallet Regi M, Gonzalez Calbet J Materials Research Bulletin 24 (1989) 423-430 Perovskite Threefold Superlattices: A Structure Determination of the A3 M3 O8 Phase _cod_database_code 1006023 _database_code_amcsd 0014340 5.5295 11.2045 5.4379 90 90 90 Pcm2_1 atom x y z occ Fe1 .309 0 .050 Ti1 .258 .3303 0 .5 Fe2 .258 .3303 0 .5 Ca1 .234 .5 .486 Ca2 .225 .1884 .526 O1 .398 0 .410 O2 .316 .5 -.010 O3 .169 .144 -.018 O4 -.010 .353 .227 O5 .469 .300 .281