data_ZnAsSe
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.69
_cell_length_b   7.56
_cell_length_c   2.93
_cell_angle_alpha   81.46
_cell_angle_beta   76.41
_cell_angle_gamma   22.13
_symmetry_Int_Tables_number   1
_chemical_formula_structural   ZnAsSe
_chemical_formula_sum   'Zn1 As1 Se1'
_cell_volume   61.25
_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
  Zn  Zn2  1  0.81  0.3  0.92  1.0
  As  As0  1  0.81  0.3  0.2  1.0
  Se  Se1  1  0.81  0.3  0.23  1.0

data_ZnAsSe
_symmetry_space_group_name_H-M   Cm
_cell_length_a   3.63
_cell_length_b   14.68
_cell_length_c   2.93
_cell_angle_alpha   90.0
_cell_angle_beta   128.24
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   ZnAsSe
_chemical_formula_sum   'Zn2 As2 Se2'
_cell_volume   122.5
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  'x, -y, z'
  3  'x+1/2, y+1/2, z'
  4  'x+1/2, -y+1/2, 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
  Zn  Zn0  2  0.46  0.5  0.26  1.0
  As  As1  2  0.19  0.5  0.99  1.0
  Se  Se2  2  0.15  0.5  0.95  1.0

Zn As Se