data_SrCrCu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.18
_cell_length_b   6.17
_cell_length_c   3.22
_cell_angle_alpha   75.15
_cell_angle_beta   74.57
_cell_angle_gamma   30.27
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SrCrCu
_chemical_formula_sum   'Sr1 Cr1 Cu1'
_cell_volume   59.63
_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
  Sr  Sr2  1  0.26  0.3  0.66  1.0
  Cr  Cr0  1  0.26  0.3  0.0  1.0
  Cu  Cu1  1  0.26  0.3  0.28  1.0

data_SrCrCu
_symmetry_space_group_name_H-M   Imm2
_cell_length_a   3.22
_cell_length_b   11.47
_cell_length_c   3.22
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   44
_chemical_formula_structural   SrCrCu
_chemical_formula_sum   'Sr2 Cr2 Cu2'
_cell_volume   119.29
_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, y, z'
  4  'x, -y, z'
  5  'x+1/2, y+1/2, z+1/2'
  6  '-x+1/2, -y+1/2, z+1/2'
  7  '-x+1/2, y+1/2, z+1/2'
  8  'x+1/2, -y+1/2, z+1/2'
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
  Sr  Sr0  2  0.0  0.0  0.08  1.0
  Cr  Cr1  2  0.0  0.0  0.74  1.0
  Cu  Cu2  2  0.0  0.0  0.46  1.0

Sr Cr Cu
Sr Cr Cu 0 2 o o o 0 1 o o + 1 2 o o o 