data_AlVSi2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.68
_cell_length_b   2.68
_cell_length_c   7.75
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   AlVSi2
_chemical_formula_sum   'Al1 V1 Si2'
_cell_volume   55.81
_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
  Al  Al0  1  0.0  0.0  0.75  1.0
  V  V3  1  0.34  0.34  0.82  1.0
  Si  Si1  1  0.34  0.34  0.03  1.0
  Si  Si2  1  0.0  0.0  0.02  1.0

data_AlVSi2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   3.79
_cell_length_b   3.79
_cell_length_c   7.75
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   AlVSi2
_chemical_formula_sum   'Al2 V2 Si4'
_cell_volume   111.62
_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
  Al  Al0  2  0.0  0.0  0.75  1.0
  V  V1  2  0.34  0.0  0.82  1.0
  Si  Si2  2  0.0  0.0  0.02  1.0
  Si  Si3  2  0.34  0.0  0.03  1.0

Al V Si Si