(NH4)3H(SO4)2
Friese K, Aroyo M I, Schwalowsky I, Adiwidjaja G, Bismayer U
Journal of Solid State Chemistry 165 (2002) 136-147
The disordered high-temperature structure of (NH4)3H(SO4)2 and its relationship
to the room-temperature phase
Locality: synthetic
Sample: T = 420 K
Note: high-temperature polymorph of letovicite
_database_code_amcsd 0014023
5.9039 5.9039 22.5360 90 90 120 R-3m
atom     x      y      z occ  Uiso
N1       0      0      0     .0661
N2       0      0  .1994     .0755
H1      .5      0      0 1/3   .08
H2    .082  -.082   .014 1/3   .11
H3    .039  -.039   .964 1/3   .06
H4       0      0   .161       .18
H5    .064  -.064   .222       .31
S        0      0 .40947     .0594
O1   .0376 -.0376  .3428 1/3  .078
O2   .1352 -.1352 .57055     .0823