data_Ga2SiTc
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.39
_cell_length_b   3.39
_cell_length_c   5.09
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ga2SiTc
_chemical_formula_sum   'Ga2 Si1 Tc1'
_cell_volume   58.55
_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
  Ga  Ga0  1  0.7  0.7  0.81  1.0
  Ga  Ga1  1  0.7  0.7  0.28  1.0
  Si  Si2  1  0.0  0.0  0.0  1.0
  Tc  Tc3  1  0.0  0.0  0.54  1.0

data_Ga2SiTc
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.8
_cell_length_b   4.8
_cell_length_c   5.09
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Ga2SiTc
_chemical_formula_sum   'Ga4 Si2 Tc2'
_cell_volume   117.1
_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
  Ga  Ga0  2  0.2  0.5  0.28  1.0
  Ga  Ga1  2  0.2  0.5  0.81  1.0
  Si  Si2  2  0.0  0.0  0.0  1.0
  Tc  Tc3  2  0.0  0.0  0.54  1.0

Ga Ga Si Tc
Ga Ga Si Tc 0 3 + + o 0 2 + + + 0 1 o o + 1 2 + + o 1 3 + + o 2 3 o o - 