Ca2 O7 P2 Boudin S, Grandin A, Borel M, Leclaire A, Raveau B Acta Crystallographica C49 (1993) 2062-2064 Redetermination of the beta-Ca2P2O7 structure _cod_database_code 1001556 _database_code_amcsd 0010288 6.6858 6.6858 24.147 90 90 90 P4_1 atom x y z Ca1 .1374 .2313 0 Ca2 .1591 .5447 .24262 Ca3 .7895 .7337 .13802 Ca4 .3627 .1054 .13548 P1 .6213 .3078 .02345 P2 .8673 .2534 .12431 P3 .0463 .7148 .01863 P4 .2873 .6462 .12074 O1 .4607 .1584 .0426 O2 .7727 .1984 -.0133 O3 .5303 .4921 -.0001 O4 .7395 .3776 .0789 O5 .7364 .0873 .1469 O6 .0519 .1769 .0953 O7 .8994 .4088 .1695 O8 .8537 .7907 .0433 O9 .1855 .8795 -.0011 O10 .0229 .5542 -.0249 O11 .1582 .5873 .0666 O12 .3450 .4526 .1474 O13 .4622 .7756 .1015 O14 .1474 .7722 .1572