data_image0
_chemical_formula_structural       Cu2Se2
_chemical_formula_sum              "Cu2 Se2"
_cell_length_a       3.71219636673142
_cell_length_b       3.71219636673142
_cell_length_c       33.0334
_cell_angle_alpha    90.0
_cell_angle_beta     90.0
_cell_angle_gamma    90.0

_space_group_name_H-M_alt    "P 1"
_space_group_IT_number       1

loop_
  _space_group_symop_operation_xyz
  '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
  Cu  Cu1       1.0  0.0  0.4999999990933373  0.5  1.0000
  Cu  Cu2       1.0  0.4999999990933373  1.4273815520470398e-19  0.5  1.0000
  Se  Se1       1.0  0.4999999990933373  0.4999999990933373  0.5484195281139695  1.0000
  Se  Se2       1.0  0.0  0.0  0.4515804718860305  1.0000