H3 O7.5 P2 Rb2 Averbuch-Pouchot M, Durif A Comptes Rendus Hebdomadaires des Seances de l'Academie des Sciences 316 (1993) 469-476 Synthese et structure cristalline du dihydrogenodiphosphate de rubidium hemihydrate: Rb2H2P2O7 . 1/2H2O _cod_database_code 1007212 _database_code_amcsd 0012310 19.568 10.545 7.773 90 90 90 Pnam atom x y z occ Rb1 .01421 .84262 .25 Rb2 .22875 .64913 .75 Rb3 .29738 .17018 .75 Rb4 .03346 .66682 .75 P1 .13860 .9578 .9406 P2 .13319 .3623 .5564 O1 .4119 .5379 .5514 O2 .1264 .8203 .9727 O3 .2108 .0037 .9604 O4 .6134 .5041 .75 O5 .3786 .0017 .0392 O6 .2052 .3244 .4932 O7 .0825 .2744 .4785 O8 .6183 .1861 .75 .43 O9 .6594 .164 .75 .57 O10 .5489 .9228 .25 H1 .738 .089 .01 H2 .602 .378 .03