data_1008084
_chemical_name_systematic          'Cadmium chromate - $-alpha'
_chemical_formula_structural       'Cd Cr O4'
_chemical_formula_sum              'Cd Cr O4'
_publ_section_title
;
X-ray diffraction study of the chromates of nickel, magnesium and
cadmium
;
loop_
_publ_author_name
  'Muller, O'
  'White, W B'
  'Roy, R'
_journal_name_full
;
Zeitschrift fuer Kristallographie, Kristallgeometrie, Kristallphysik,
Kristallchemie (-144,1977)
;
_journal_coden_ASTM                ZEKGAX
_journal_volume                    130
_journal_year                      1969
_journal_page_first                112
_journal_page_last                 120
_cell_length_a                     5.678
_cell_length_b                     8.723
_cell_length_c                     6.926
_cell_angle_alpha                  90
_cell_angle_beta                   90
_cell_angle_gamma                  90
_cell_volume                       343.0
_cell_formula_units_Z              4
_symmetry_space_group_name_H-M     'C m c m'
_symmetry_Int_Tables_number        63
_symmetry_cell_setting             orthorhombic
loop_
_symmetry_equiv_pos_as_xyz
  'x,y,z'
  'x,-y,-z'
  'x,y,1/2-z'
  'x,-y,1/2+z'
  '-x,-y,-z'
  '-x,y,z'
  '-x,-y,1/2+z'
  '-x,y,1/2-z'
  '1/2+x,1/2+y,z'
  '1/2+x,1/2-y,-z'
  '1/2+x,1/2+y,1/2-z'
  '1/2+x,1/2-y,1/2+z'
  '1/2-x,1/2-y,-z'
  '1/2-x,1/2+y,z'
  '1/2-x,1/2-y,1/2+z'
  '1/2-x,1/2+y,1/2-z'
loop_
_atom_type_symbol
_atom_type_oxidation_number
  Cd2+   2.000
  Cr6+   6.000
  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
  Cd1   Cd2+   4 a 0. 0. 0. 1.  0 d
  Cr1   Cr6+   4 c 0. 0.355 0.25 1.  0 d
  O1    O2-    8 f 0. 0.24 0.03 1.  0 d
  O2    O2-    8 g 0.26 -0.02 0.25 1.  0 d
_refine_ls_R_factor_all            0.209