data_V2CuSi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.24
_cell_length_b   3.24
_cell_length_c   5.0
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   V2CuSi
_chemical_formula_sum   'V2 Cu1 Si1'
_cell_volume   52.6
_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
  V  V2  1  0.62  0.62  0.16  1.0
  V  V3  1  0.62  0.62  0.84  1.0
  Cu  Cu0  1  0.0  0.0  0.5  1.0
  Si  Si1  1  0.0  0.0  0.0  1.0

data_V2CuSi
_symmetry_space_group_name_H-M   Amm2
_cell_length_a   5.0
_cell_length_b   4.59
_cell_length_c   4.59
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   38
_chemical_formula_structural   V2CuSi
_chemical_formula_sum   'V4 Cu2 Si2'
_cell_volume   105.2
_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, y+1/2, z+1/2'
  6  '-x, -y+1/2, z+1/2'
  7  '-x, y+1/2, z+1/2'
  8  'x, -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
  V  V0  4  0.16  0.0  0.62  1.0
  Si  Si1  2  0.0  0.0  0.0  1.0
  Cu  Cu2  2  0.5  0.0  0.0  1.0

V V Cu Si