NH4H2AsO4
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
Note: known as ADA
_database_code_amcsd 0009494
7.6998 7.6998 7.7158 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)
As       0     0     0           .0057  .0057  .0089      0      0      0
N        0     0    .5           .0112  .0112  .0089      0      0      0
O    .0869 .1578 .1233           .0078  .0088  .0145  .0019 -.0028 -.0048
H(n)  .014  .120  .567      2.4
H(o)   .25  .199  .125  .5  4.6