data_Hf2TcHg
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.47
_cell_length_b   3.47
_cell_length_c   6.43
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Hf2TcHg
_chemical_formula_sum   'Hf2 Tc1 Hg1'
_cell_volume   77.56
_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
  Hf  Hf0  1  0.74  0.74  0.25  1.0
  Hf  Hf1  1  0.0  0.0  0.62  1.0
  Tc  Tc3  1  0.0  0.0  0.94  1.0
  Hg  Hg2  1  0.74  0.74  0.27  1.0

data_Hf2TcHg
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.91
_cell_length_b   4.91
_cell_length_c   6.43
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Hf2TcHg
_chemical_formula_sum   'Hf4 Tc2 Hg2'
_cell_volume   155.12
_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
  Hf  Hf0  2  0.0  0.0  0.62  1.0
  Hf  Hf1  2  0.24  0.5  0.25  1.0
  Tc  Tc2  2  0.0  0.0  0.94  1.0
  Hg  Hg3  2  0.24  0.5  0.27  1.0

Hf Hf Tc Hg
Hf Hf Tc Hg 0 3 o o o 0 2 + + - 1 2 o o o 2 3 - - + 