H2 O4 P Rb Averbuch-Pouchot M, Durif A Acta Crystallographica C41 (1985) 665-667 Structure of a New Form of Rubidium Dihydrogenphosphate, Rb H2 P O4 _cod_database_code 1007144 _database_code_amcsd 0010007 9.606 6.236 7.738 90 109.07 90 P2_1/a atom x y z Rb1 .28464 .2383 .26559 P1 .4823 .2458 .7577 O1 .4452 .7551 .3979 O2 .9307 .5839 .0944 O3 .6751 .8198 .3312 O4 .0010 .9747 .1618 H1 .501 .55 .07 H2 .346 .74 .37