data_1010493
_chemical_name_systematic          'Silver phosphate'
_chemical_formula_structural       'Ag3 P O4'
_chemical_formula_sum              'Ag3 O4 P'
_publ_section_title
;
Die Kristallstruktur von Silberphosphat und Silberarsenat (Ag~3~ X
O~4~).
;
_publ_author_name                  'Wyckoff, R W G'
_journal_name_full
;
Zeitschrift fuer Kristallographie, Kristallgeometrie, Kristallphysik,
Kristallchemie (-144,1977)
;
_journal_coden_ASTM                ZEKGAX
_journal_volume                    62
_journal_year                      1925
_journal_page_first                529
_journal_page_last                 539
_cell_length_a                     5.996
_cell_length_b                     5.996
_cell_length_c                     5.996
_cell_angle_alpha                  90
_cell_angle_beta                   90
_cell_angle_gamma                  90
_cell_volume                       215.6
_cell_formula_units_Z              2
_symmetry_space_group_name_H-M     'P -4 3 n'
_symmetry_Int_Tables_number        218
_symmetry_cell_setting             cubic
loop_
_symmetry_equiv_pos_as_xyz
  'x,y,z'
  'y,z,x'
  'z,x,y'
  '-x,y,-z'
  '-y,z,-x'
  '-z,x,-y'
  'x,-y,-z'
  'y,-z,-x'
  'z,-x,-y'
  '-x,-y,z'
  '-y,-z,x'
  '-z,-x,y'
  '1/2+x,1/2+z,1/2+y'
  '1/2+y,1/2+x,1/2+z'
  '1/2+z,1/2+y,1/2+x'
  '1/2-x,1/2-z,1/2+y'
  '1/2-y,1/2-x,1/2+z'
  '1/2-z,1/2-y,1/2+x'
  '1/2+x,1/2-z,1/2-y'
  '1/2+y,1/2-x,1/2-z'
  '1/2+z,1/2-y,1/2-x'
  '1/2-x,1/2+z,1/2-y'
  '1/2-y,1/2+x,1/2-z'
  '1/2-z,1/2+y,1/2-x'
loop_
_atom_type_symbol
_atom_type_oxidation_number
  Ag1+   1.000
  P5+    5.000
  O2-   -2.000
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
  Ag1   Ag1+   6 d 0. 0.5 0.25 1.  0 d
  P1    P5+    2 a 0. 0. 0. 1.  0 d
  O1    O2-    8 e -1. -1. -1. 1.  0 dum