data_Cu2SiTc
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.54
_cell_length_b   8.54
_cell_length_c   8.54
_cell_angle_alpha   18.09
_cell_angle_beta   18.09
_cell_angle_gamma   18.09
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Cu2SiTc
_chemical_formula_sum   'Cu2 Si1 Tc1'
_cell_volume   52.39
_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
  Cu  Cu0  1  0.0  0.0  0.77  1.0
  Cu  Cu1  1  0.0  0.0  0.42  1.0
  Si  Si2  1  0.0  0.0  0.0  1.0
  Tc  Tc3  1  0.0  0.0  0.6  1.0

data_Cu2SiTc
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.65
_cell_length_b   2.68
_cell_length_c   8.54
_cell_angle_alpha   90.0
_cell_angle_beta   100.46
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Cu2SiTc
_chemical_formula_sum   'Cu4 Si2 Tc2'
_cell_volume   104.79
_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
  Si  Si0  2  0.0  0.0  0.0  1.0
  Cu  Cu1  2  0.0  0.0  0.23  1.0
  Tc  Tc2  2  0.0  0.0  0.4  1.0
  Cu  Cu3  2  0.0  0.0  0.58  1.0

Cu Cu Si Tc