H Mn O7 P2 Durif A, Averbuch-Pouchot M Acta Crystallographica B38 (1982) 2883-2885 Structure du Diphosphate Acide de Manganese(III): Mn H P2 O7 _cod_database_code 1007088 _database_code_amcsd 0009783 7.951 12.645 4.922 90 100.92 90 P2_1/n atom x y z Mn1 -.00446 .37443 .1265 P1 .2509 .46294 .6525 P2 .2423 .17624 .0625 O1 .1630 .0703 .9086 O2 .1983 .4020 .3868 O3 .3901 .2079 .9281 O4 .0990 .4875 .7936 O5 .2937 .1490 .3666 O6 .0943 .2525 .0032 O7 .3968 .4090 .8463 H1 .406 .342 .85