data_[Pm1Tm1Si2Ni2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Tm  1.2500  1.7500  1.0950
  Si  1.9000  1.1000  0.5400
  Ni  1.9100  1.3500  0.7400
]
_symmetry_space_group_name_H-M [P-3m1]
_cell_length_a [3.9957]
_cell_length_b [3.9957]
_cell_length_c [7.9931]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [164]
_chemical_formula_structural [PmTm(SiNi)2]
_chemical_formula_sum '[Pm1 Tm1 Si2 Ni2]'
_cell_volume [110.5195]
_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
[
  Pm  Pm0  1  0.0000  0.0000  0.0000  1
  Tm  Tm1  1  0.0000  0.0000  0.5000  1
  Si  Si2  2  0.3333  0.6667  0.2594  1
  Ni  Ni3  2  0.3333  0.6667  0.7336  1
]