data_Ba2CuAs
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.38
_cell_length_b   8.38
_cell_length_c   8.38
_cell_angle_alpha   32.71
_cell_angle_beta   32.71
_cell_angle_gamma   32.71
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ba2CuAs
_chemical_formula_sum   'Ba2 Cu1 As1'
_cell_volume   152.95
_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
  Ba  Ba1  1  0.0  0.0  0.04  1.0
  Ba  Ba2  1  0.0  0.0  0.73  1.0
  Cu  Cu3  1  0.0  0.0  0.0  1.0
  As  As0  1  0.0  0.0  0.89  1.0

data_Ba2CuAs
_symmetry_space_group_name_H-M   Cm
_cell_length_a   8.18
_cell_length_b   4.72
_cell_length_c   8.38
_cell_angle_alpha   90.0
_cell_angle_beta   108.98
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Ba2CuAs
_chemical_formula_sum   'Ba4 Cu2 As2'
_cell_volume   305.9
_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
  Ba  Ba0  2  0.0  0.0  0.27  1.0
  Ba  Ba1  2  0.0  0.0  0.96  1.0
  Cu  Cu2  2  0.0  0.0  0.0  1.0
  As  As3  2  0.0  0.0  0.11  1.0

Ba Ba Cu As
Ba Ba Cu As 0 2 o o o 1 3 o o o 2 3 o o - 