The material structure described by HgCdSe2 is Chalcopyrite-like structured and crystallizes in the tetragonal P-4m2 space group. Hg(1) is bonded to four equivalent Se(1) atoms to form HgSe4 tetrahedra that share corners with four equivalent Hg(1)Se4 tetrahedra and corners with eight equivalent Cd(1)Se4 tetrahedra. Cd(1) is bonded to four equivalent Se(1) atoms to form CdSe4 tetrahedra that share corners with four equivalent Cd(1)Se4 tetrahedra and corners with eight equivalent Hg(1)Se4 tetrahedra. Se(1) is bonded to two equivalent Hg(1) and two equivalent Cd(1) atoms to form corner-sharing SeCd2Hg2 tetrahedra. is represented by the CIF card [CIF]
data_CdHgSe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.364
_cell_length_b   4.364
_cell_length_c   6.159
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   117.312
_cell_formula_units_Z   1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Cd  Cd0  1  0.500  0.500  0.500  1.0
  Hg  Hg1  1  0.000  0.000  0.000  1.0
  Se  Se2  1  0.000  0.500  0.253  1.0
  Se  Se3  1  0.500  0.000  0.747  1.0
[/CIF]
.
The material structure described by HgCdSe2 is Chalcopyrite-like structured and crystallizes in the tetragonal P-4m2 space group. Hg(1) is bonded to four equivalent Se(1) atoms to form HgSe4 tetrahedra that share corners with four equivalent Hg(1)Se4 tetrahedra and corners with eight equivalent Cd(1)Se4 tetrahedra. Cd(1) is bonded to four equivalent Se(1) atoms to form CdSe4 tetrahedra that share corners with four equivalent Cd(1)Se4 tetrahedra and corners with eight equivalent Hg(1)Se4 tetrahedra. Se(1) is bonded to two equivalent Hg(1) and two equivalent Cd(1) atoms to form corner-sharing SeCd2Hg2 tetrahedra. is represented by the CIF card [CIF]
data_CdHgSe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.364
_cell_length_b   4.364
_cell_length_c   6.159
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   117.312
_cell_formula_units_Z   1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Cd  Cd0  1  0.500  0.500  0.500  1.0
  Hg  Hg1  1  0.000  0.000  0.000  1.0
  Se  Se2  1  0.000  0.500  0.253  1.0
  Se  Se3  1  0.500  0.000  0.747  1.0
[/CIF]
.