The crystal structure described by Pm3I crystallizes in the hexagonal P6_3/mmc space group. Pm(1) is bonded in a distorted see-saw-like geometry to four equivalent I(1) atoms. I(1) is bonded to twelve equivalent Pm(1) atoms to form a mixture of corner and face-sharing IPm12 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Pm3I
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.067
_cell_length_b   7.067
_cell_length_c   5.782
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   250.056
_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  1  0.834  0.166  0.750  1.0
  Pm  Pm1  1  0.333  0.166  0.750  1.0
  Pm  Pm2  1  0.834  0.667  0.750  1.0
  Pm  Pm3  1  0.166  0.834  0.250  1.0
  Pm  Pm4  1  0.667  0.834  0.250  1.0
  Pm  Pm5  1  0.166  0.333  0.250  1.0
  I  I6  1  0.667  0.333  0.250  1.0
  I  I7  1  0.333  0.667  0.750  1.0
[/CIF]
.
The crystal structure described by Pm3I crystallizes in the hexagonal P6_3/mmc space group. Pm(1) is bonded in a distorted see-saw-like geometry to four equivalent I(1) atoms. I(1) is bonded to twelve equivalent Pm(1) atoms to form a mixture of corner and face-sharing IPm12 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Pm3I
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.067
_cell_length_b   7.067
_cell_length_c   5.782
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   250.056
_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  1  0.834  0.166  0.750  1.0
  Pm  Pm1  1  0.333  0.166  0.750  1.0
  Pm  Pm2  1  0.834  0.667  0.750  1.0
  Pm  Pm3  1  0.166  0.834  0.250  1.0
  Pm  Pm4  1  0.667  0.834  0.250  1.0
  Pm  Pm5  1  0.166  0.333  0.250  1.0
  I  I6  1  0.667  0.333  0.250  1.0
  I  I7  1  0.333  0.667  0.750  1.0
[/CIF]
.