data_[Pm6Sn4H4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Sn  1.9600  1.4500  0.8300
  H  2.2000  0.2500  0.0000
]
_symmetry_space_group_name_H-M [P2_1/c]
_cell_length_a [6.5473]
_cell_length_b [8.2790]
_cell_length_c [6.8366]
_cell_angle_alpha [90.0000]
_cell_angle_beta [119.6533]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [14]
_chemical_formula_structural [Pm3(SnH)2]
_chemical_formula_sum '[Pm6 Sn4 H4]'
_cell_volume [322.0469]
_cell_formula_units_Z [2]
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  4  0.3434  0.5897  0.1977  1
  Pm  Pm1  2  0.0000  0.0000  0.0000  1
  Sn  Sn2  4  0.2286  0.2300  0.3851  1
  H  H3  4  0.3550  0.6210  0.5774  1
]