data_NbTlSi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.7
_cell_length_b   5.7
_cell_length_c   5.7
_cell_angle_alpha   144.58
_cell_angle_beta   144.58
_cell_angle_gamma   50.97
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NbTlSi
_chemical_formula_sum   'Nb1 Tl1 Si1'
_cell_volume   61.83
_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  0.0  0.81  1.0
  Tl  Tl2  1  0.0  0.0  0.81  1.0
  Si  Si1  1  0.0  0.0  0.96  1.0

data_NbTlSi
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.9
_cell_length_b   4.9
_cell_length_c   5.7
_cell_angle_alpha   90.0
_cell_angle_beta   115.48
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   NbTlSi
_chemical_formula_sum   'Nb2 Tl2 Si2'
_cell_volume   123.66
_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
  Nb  Nb0  2  0.0  0.0  0.19  1.0
  Tl  Tl1  2  0.0  0.0  0.19  1.0
  Si  Si2  2  0.0  0.0  0.04  1.0

Nb Tl Si 0 1 o o o 0 2 o o o 1 2 o o o 