data_CoCuNi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.01
_cell_length_b   4.01
_cell_length_c   2.43
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CoCuNi
_chemical_formula_sum   'Co1 Cu1 Ni1'
_cell_volume   33.82
_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
  Co  Co0  1  0.0  0.0  0.42  1.0
  Cu  Cu1  1  0.0  0.16  0.84  1.0
  Ni  Ni2  1  0.0  0.31  0.61  1.0

data_CoCuNi
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.01
_cell_length_b   6.94
_cell_length_c   2.43
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   CoCuNi
_chemical_formula_sum   'Co2 Cu2 Ni2'
_cell_volume   67.64
_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
  Co  Co0  2  0.0  0.0  0.42  1.0
  Cu  Cu1  2  0.15  0.0  0.84  1.0
  Ni  Ni2  2  0.31  0.0  0.61  1.0

Co Cu Ni