data_Cr2SiTc
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.76
_cell_length_b   4.76
_cell_length_c   4.76
_cell_angle_alpha   136.62
_cell_angle_beta   136.62
_cell_angle_gamma   63.03
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Cr2SiTc
_chemical_formula_sum   'Cr2 Si1 Tc1'
_cell_volume   50.17
_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
  Cr  Cr0  1  0.0  0.76  0.03  1.0
  Cr  Cr1  1  0.76  0.0  0.03  1.0
  Si  Si2  1  0.0  0.0  0.0  1.0
  Tc  Tc3  1  0.0  0.0  0.06  1.0

data_Cr2SiTc
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.97
_cell_length_b   4.97
_cell_length_c   4.76
_cell_angle_alpha   90.0
_cell_angle_beta   121.51
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Cr2SiTc
_chemical_formula_sum   'Cr4 Si2 Tc2'
_cell_volume   100.34
_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
  Cr  Cr0  4  0.12  0.12  0.27  1.0
  Si  Si1  2  0.0  0.0  0.0  1.0
  Tc  Tc2  2  0.0  0.0  0.06  1.0

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