data_VSiSe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.78
_cell_length_b   4.78
_cell_length_c   3.76
_cell_angle_alpha   105.65
_cell_angle_beta   105.65
_cell_angle_gamma   106.55
_symmetry_Int_Tables_number   1
_chemical_formula_structural   VSiSe2
_chemical_formula_sum   'V1 Si1 Se2'
_cell_volume   73.47
_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  V3  1  0.86  0.0  0.0  1.0
  Si  Si2  1  0.0  0.0  0.0  1.0
  Se  Se0  1  0.58  0.09  0.68  1.0
  Se  Se1  1  0.58  0.91  0.68  1.0

data_VSiSe2
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.76
_cell_length_b   4.78
_cell_length_c   4.78
_cell_angle_alpha   106.55
_cell_angle_beta   105.65
_cell_angle_gamma   105.65
_symmetry_Int_Tables_number   1
_chemical_formula_structural   VSiSe2
_chemical_formula_sum   'V1 Si1 Se2'
_cell_volume   73.47
_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  V0  1  -0.0  0.86  0.0  1.0
  Si  Si1  1  0.0  0.0  0.0  1.0
  Se  Se2  1  0.68  0.58  0.09  1.0
  Se  Se3  1  0.68  0.58  0.91  1.0

V Si Se Se