Phosphammite Khan A A, Roux J P, James W J Acta Crystallographica B28 (1972) 2065-2069 The crystal structure of diammonium hydrogen phosphate, (NH4)2HPO4 _database_code_amcsd 0009438 11.043 6.700 8.031 90 113.42 90 P2_1/c atom x y z Biso B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) N1 .4517 .1190 .1608 .0050 .0128 .0129 .0003 .0031 -.0001 N2 .1217 .3857 .2620 .0052 .0099 .0114 -.0002 .0026 -.0006 H1 .179 .876 .137 3.1 H2 .513 .160 .115 1.3 H3 .418 .000 .115 1.1 H4 .496 .121 .285 1.8 H5 .392 .205 .127 1.2 H6 .170 .405 .186 1.9 H7 .125 .498 .315 .5 H8 .161 .292 .348 .9 H9 .043 .351 .197 .8 P .24913 .89110 .43043 .0040 .0080 .0078 .0002 .0022 -.0004 O1 .2039 .9678 .2277 .0098 .0102 .0094 .0003 .0039 .0002 O2 .2644 .0823 .5394 .0064 .0108 .0113 -.0010 .0038 -.0023 O3 .3767 .7735 .4845 .0054 .0159 .0136 .0022 .0034 -.0001 O4 .1389 .7602 .4409 .0049 .0111 .0110 -.0007 .0023 .0005