data_MgTaTc
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.27
_cell_length_b   7.06
_cell_length_c   2.87
_cell_angle_alpha   82.67
_cell_angle_beta   74.3
_cell_angle_gamma   23.02
_symmetry_Int_Tables_number   1
_chemical_formula_structural   MgTaTc
_chemical_formula_sum   'Mg1 Ta1 Tc1'
_cell_volume   52.51
_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
  Mg  Mg0  1  0.61  0.38  0.66  1.0
  Ta  Ta1  1  0.61  0.38  0.35  1.0
  Tc  Tc2  1  0.61  0.38  0.5  1.0

data_MgTaTc
_symmetry_space_group_name_H-M   Cm
_cell_length_a   3.21
_cell_length_b   13.75
_cell_length_c   2.87
_cell_angle_alpha   90.0
_cell_angle_beta   124.07
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   MgTaTc
_chemical_formula_sum   'Mg2 Ta2 Tc2'
_cell_volume   105.02
_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
  Mg  Mg0  2  0.36  0.0  0.73  1.0
  Ta  Ta1  2  0.17  0.5  0.05  1.0
  Tc  Tc2  2  0.02  0.5  0.9  1.0

Mg Ta Tc