data_global
_amcsd_formula_title 'Cr4 H12 N3 O16 P'
loop_
_publ_author_name
'Averbuch-Pouchot M'
'Durif A'
'Guitel J'
_journal_name_full 'Journal of Solid State Chemistry'
_journal_volume 36 
_journal_year 1981
_journal_page_first 381
_journal_page_last 384
_publ_section_title
;
 Crystal structure of an ammonium phospho-chromate: (N H4)3 P Cr4 O16
 _cod_database_code 1007244
;
_database_code_amcsd 0015926
_chemical_formula_sum 'Cr4 P O16 N3'
_cell_length_a 12.033
_cell_length_b 12.033
_cell_length_c 10.032
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 120
_cell_volume 1257.958
_exptl_crystal_density_diffrn      2.126
_symmetry_space_group_name_H-M 'R 3 m'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '2/3+x,1/3+y,1/3+z'
  '1/3+x,2/3+y,2/3+z'
  'x,x-y,z'
  '2/3+x,1/3+x-y,1/3+z'
  '1/3+x,2/3+x-y,2/3+z'
  '-y,-x,z'
  '2/3-y,1/3-x,1/3+z'
  '1/3-y,2/3-x,2/3+z'
  '-x+y,y,z'
  '2/3-x+y,1/3+y,1/3+z'
  '1/3-x+y,2/3+y,2/3+z'
  '-y,x-y,z'
  '2/3-y,1/3+x-y,1/3+z'
  '1/3-y,2/3+x-y,2/3+z'
  '-x+y,-x,z'
  '2/3-x+y,1/3-x,1/3+z'
  '1/3-x+y,2/3-x,2/3+z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Cr1   0.87560  -0.87560   0.50750
Cr2   0.00000   0.00000   0.00000
P1   0.00000   0.00000   0.32570
O1   0.93120  -0.93120   0.36460
O2  -0.01910   0.22690   0.58030
O3   0.80840  -0.80840   0.44610
O4   0.00000   0.00000   0.17780
O5   0.92710  -0.92710   0.94560
N1  -0.51520   0.51520   0.46760