data_1007147
_chemical_name_systematic          'Diammonium trihydrogenarsenate sulfate'
_chemical_formula_structural       '(N H4)2 H3 As O4 S O4'
_chemical_formula_sum              'H11 As N2 O8 S'
_publ_section_title
;
Ordered As O~4~ and S O~4~ tetrahedra in diammonium trihydrogenarsenate
sulfate
;
loop_
_publ_author_name
  'Boubia, M'
  'Averbuch-Pouchot, M T'
  'Durif, A'
_journal_name_full                 'Acta Crystallographica C (39,1983-)'
_journal_coden_ASTM                ACSCEE
_journal_volume                    41
_journal_year                      1985
_journal_page_first                1562
_journal_page_last                 1564
_cell_length_a                     11.95(1)
_cell_length_b                     7.660(5)
_cell_length_c                     9.658(6)
_cell_angle_alpha                  90
_cell_angle_beta                   92.40(1)
_cell_angle_gamma                  90
_cell_volume                       883.3
_cell_formula_units_Z              4
_exptl_crystal_density_meas        2.06
_symmetry_space_group_name_H-M     'P 1 21/c 1'
_symmetry_Int_Tables_number        14
_symmetry_cell_setting             monoclinic
loop_
_symmetry_equiv_pos_as_xyz
  'x,y,z'
  '-x,1/2+y,1/2-z'
  '-x,-y,-z'
  'x,1/2-y,1/2+z'
loop_
_atom_type_symbol
_atom_type_oxidation_number
  As5+   5.000
  S6+    6.000
  O2-   -2.000
  N3-   -3.000
  H1+    1.000
loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_symmetry_multiplicity
_atom_site_Wyckoff_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_attached_hydrogens
_atom_site_calc_flag
  As1   As5+   4 e 0.17602(6) 0.1862(9) 0.42489(7) 1.  0 d
  S1    S6+    4 e 0.3224(1) 0.6841(2) 0.5702(2) 1.  0 d
  O1    O2-    4 e 0.1672(4) 0.0160(7) 0.3126(5) 1.  0 d
  O2    O2-    4 e 0.3024(4) 0.2821(6) 0.4000(5) 1.  0 d
  O3    O2-    4 e 0.1840(6) 0.0992(8) 0.5881(5) 1.  0 d
  O4    O2-    4 e 0.0664(4) 0.3131(8) 0.4075(5) 1.  0 d
  O5    O2-    4 e 0.3407(4) 0.5400(7) 0.6713(5) 1.  0 d
  O6    O2-    4 e 0.2149(4) 0.7686(7) 0.5948(6) 1.  0 d
  O7    O2-    4 e 0.3189(5) 0.6122(7) 0.4282(5) 1.  0 d
  O8    O2-    4 e 0.4149(4) 0.8092(8) 0.5863(5) 1.  0 d
  N1    N3-    4 e 0.0657(5) 0.6667(8) 0.3414(6) 1.  0 d
  N2    N3-    4 e 0.4554(5) 0.1848(10) 0.6586(6) 1.  0 d
  H1    H1+    4 ? -1. -1. -1. 11.  0 dum
_refine_ls_R_factor_all            0.026