data_Ti2MnAs
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.64
_cell_length_b   4.64
_cell_length_c   4.64
_cell_angle_alpha   130.36
_cell_angle_beta   130.36
_cell_angle_gamma   72.83
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ti2MnAs
_chemical_formula_sum   'Ti2 Mn1 As1'
_cell_volume   56.81
_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
  Ti  Ti2  1  0.95  0.0  0.87  1.0
  Ti  Ti3  1  0.0  0.95  0.87  1.0
  Mn  Mn1  1  0.0  0.0  0.0  1.0
  As  As0  1  0.0  0.0  0.74  1.0

data_Ti2MnAs
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.51
_cell_length_b   5.51
_cell_length_c   4.64
_cell_angle_alpha   90.0
_cell_angle_beta   126.41
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Ti2MnAs
_chemical_formula_sum   'Ti4 Mn2 As2'
_cell_volume   113.61
_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
  Ti  Ti0  4  0.03  0.97  0.92  1.0
  Mn  Mn1  2  0.0  0.0  0.0  1.0
  As  As2  2  0.0  0.0  0.74  1.0

Ti Ti Mn As
Ti Ti Mn As 0 1 + - o 0 2 + o + 0 3 + o o 1 2 o + + 1 3 o + o 