data_1011054
_chemical_name_systematic          'Cadmium sulfide - $-alpha'
_chemical_name_mineral             'Greenockite'
_chemical_compound_source          'synthetic'
_chemical_formula_structural       'Cd S'
_chemical_formula_sum              'Cd S'
_publ_section_title
;
Ueber die Kristallstruktur des $-alpha- und $-beta Cd S, sowie des
Wurtzits.
;
loop_
_publ_author_name
  'Ulrich, F'
  'Zachariasen, W'
_journal_name_full
;
Zeitschrift fuer Kristallographie, Kristallgeometrie, Kristallphysik,
Kristallchemie (-144,1977)
;
_journal_coden_ASTM                ZEKGAX
_journal_volume                    62
_journal_year                      1925
_journal_page_first                260
_journal_page_last                 273
_cell_length_a                     4.15
_cell_length_b                     4.15
_cell_length_c                     6.737
_cell_angle_alpha                  90
_cell_angle_beta                   90
_cell_angle_gamma                  120
_cell_volume                       100.5
_cell_formula_units_Z              2
_exptl_crystal_density_meas        4.82
_symmetry_space_group_name_H-M     'P 63 m c'
_symmetry_Int_Tables_number        186
_symmetry_cell_setting             hexagonal
loop_
_symmetry_equiv_pos_as_xyz
  'x,y,z'
  '-y,x-y,z'
  'y-x,-x,z'
  '-y,-x,z'
  'y-x,y,z'
  'x,x-y,z'
  '-x,-y,1/2+z'
  'y,y-x,1/2+z'
  'x-y,x,1/2+z'
  'y,x,1/2+z'
  'x-y,-y,1/2+z'
  '-x,y-x,1/2+z'
loop_
_atom_type_symbol
_atom_type_oxidation_number
  Cd2+   2.000
  S2-   -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+   2 b 0.3333 0.6667 0. 1.  0 d
  S1    S2-    2 b 0.3333 0.6667 0.375 1.  0 d