data_VCu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.84
_cell_length_b   4.84
_cell_length_c   4.06
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   146.87
_symmetry_Int_Tables_number   1
_chemical_formula_structural   VCu
_chemical_formula_sum   'V2 Cu2'
_cell_volume   51.83
_cell_formula_units_Z   2
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
  V  V2  1  0.38  0.28  0.04  1.0
  V  V3  1  0.38  0.72  0.01  1.0
  Cu  Cu0  1  0.38  0.93  0.04  1.0
  Cu  Cu1  1  0.38  0.07  0.01  1.0

data_VCu
_symmetry_space_group_name_H-M   P-1
_cell_length_a   2.76
_cell_length_b   4.06
_cell_length_c   4.84
_cell_angle_alpha   90.0
_cell_angle_beta   106.56
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   2
_chemical_formula_structural   VCu
_chemical_formula_sum   'V2 Cu2'
_cell_volume   51.83
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-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
  V  V0  2  0.28  0.49  0.78  1.0
  Cu  Cu1  2  0.07  0.51  0.57  1.0

V V Cu Cu