data_PmY3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.07
_cell_length_b   5.07
_cell_length_c   5.07
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   PmY3
_chemical_formula_sum   'Pm1 Y3'
_cell_volume   130.11
_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  0.0  0.0  0.0  1.0
  Y  Y1  1  0.53  0.53  0.0  1.0
  Y  Y2  1  0.53  0.0  0.53  1.0
  Y  Y3  1  0.0  0.53  0.53  1.0

data_PmY3
_symmetry_space_group_name_H-M   R3m
_cell_length_a   7.17
_cell_length_b   7.17
_cell_length_c   8.78
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   PmY3
_chemical_formula_sum   'Pm3 Y9'
_cell_volume   390.34
_cell_formula_units_Z   3
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-y, x-y, z'
  3  '-x+y, -x, z'
  4  '-y, -x, z'
  5  '-x+y, y, z'
  6  'x, x-y, z'
  7  'x+1/3, y+2/3, z+2/3'
  8  '-y+1/3, x-y+2/3, z+2/3'
  9  '-x+y+1/3, -x+2/3, z+2/3'
  10  '-y+1/3, -x+2/3, z+2/3'
  11  '-x+y+1/3, y+2/3, z+2/3'
  12  'x+1/3, x-y+2/3, z+2/3'
  13  'x+2/3, y+1/3, z+1/3'
  14  '-y+2/3, x-y+1/3, z+1/3'
  15  '-x+y+2/3, -x+1/3, z+1/3'
  16  '-y+2/3, -x+1/3, z+1/3'
  17  '-x+y+2/3, y+1/3, z+1/3'
  18  'x+2/3, x-y+1/3, z+1/3'
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  3  0.0  0.0  0.0  1.0
  Y  Y1  9  0.18  0.36  0.36  1.0

Pm Y Y Y
Pm Y Y Y 0 1 - - o 0 1 - o o 0 1 o - o 0 1 o o o 0 2 - o - 0 2 - o o 0 2 o o - 0 2 o o o 0 3 o - - 0 3 o - o 0 3 o o - 0 3 o o o 1 3 o o - 1 3 o o o 1 3 + o - 1 3 + o o 1 2 o o - 1 2 o o o 1 2 o + - 1 2 o + o 2 3 o - o 2 3 o o o 2 3 + - o 2 3 + o o 
PmY3 is Uranium Silicide structured and crystallizes in the trigonal R3m space group. Pm(1) is bonded to twelve equivalent Y(1) atoms to form PmY12 cuboctahedra that share corners with twelve equivalent Pm(1)Y12 cuboctahedra, edges with twenty-four equivalent Y(1)Pm4Y8 cuboctahedra, faces with six equivalent Pm(1)Y12 cuboctahedra, and faces with twelve equivalent Y(1)Pm4Y8 cuboctahedra. There are a spread of Pm(1)-Y(1) bond distances ranging from 3.34-3.82 Å. Y(1) is bonded to four equivalent Pm(1) and eight equivalent Y(1) atoms to form distorted YPm4Y8 cuboctahedra that share corners with twelve equivalent Y(1)Pm4Y8 cuboctahedra, edges with eight equivalent Pm(1)Y12 cuboctahedra, edges with sixteen equivalent Y(1)Pm4Y8 cuboctahedra, faces with four equivalent Pm(1)Y12 cuboctahedra, and faces with fourteen equivalent Y(1)Pm4Y8 cuboctahedra. There are a spread of Y(1)-Y(1) bond distances ranging from 3.34-3.82 Å.