Biphosphammite Khan A A, Baur W H Acta Crystallographica B29 (1973) 2721-2726 Refinement of the crystal structures of ammonium dihydrogen phosphate and ammonium dihydrogen arsenate Locality: synthetic Note: known as ADP _database_code_amcsd 0009493 7.4997 7.4997 7.5494 90 90 90 I-42d atom x y z occ Biso B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) P 0 0 0 .0055 .0055 .0084 0 0 0 N 0 0 .5 .0110 .0110 .0088 0 0 0 O .0843 .1466 .1151 .0075 .0083 .0118 .0013 -.0022 -.0037 H(n) -.002 .089 .563 2.8 H(o) .25 .150 .125 .5 5