Ba Cs4 O18 P6 Averbuch-Pouchot M, Durif A Acta Crystallographica C42 (1986) 928-930 Structure of monobarium tetracaesium polyphosphate _cod_database_code 1007248 _database_code_amcsd 0015930 11.549 11.549 9.114 90 90 120 P31c atom x y z Ba1 1/3 2/3 .7592 Cs1 1/3 2/3 .25 Cs2 .2354 .0069 .5066 P1 .5503 .0057 .0006 P2 .3082 .2847 .2510 O1 .546 .120 .045 O2 .451 .580 -.024 O3 .382 .426 .337 O4 .162 .209 .271 O5 .392 .221 .267 O6 .346 .319 .586