data_Nb2VSi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.09
_cell_length_b   5.09
_cell_length_c   5.09
_cell_angle_alpha   141.23
_cell_angle_beta   129.47
_cell_angle_gamma   65.46
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Nb2VSi
_chemical_formula_sum   'Nb2 V1 Si1'
_cell_volume   63.01
_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
  Nb  Nb0  1  0.0  0.17  0.06  1.0
  Nb  Nb1  1  0.69  0.0  0.23  1.0
  V  V3  1  0.0  0.0  0.29  1.0
  Si  Si2  1  0.0  0.0  0.0  1.0

data_Nb2VSi
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.38
_cell_length_b   4.35
_cell_length_c   5.09
_cell_angle_alpha   115.27
_cell_angle_beta   109.38
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Nb2VSi
_chemical_formula_sum   'Nb2 V1 Si1'
_cell_volume   63.01
_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
  Nb  Nb0  1  0.0  0.23  0.54  1.0
  Nb  Nb1  1  0.83  0.88  0.88  1.0
  V  V2  1  0.0  0.29  0.29  1.0
  Si  Si3  1  0.0  0.0  0.0  1.0

Nb Nb V Si