The compound described by Pa3Sb4 crystallizes in the trigonal R3c space group. Pa(1) is bonded to two equivalent Sb(2) and six equivalent Sb(1) atoms to form a mixture of distorted face, corner, and edge-sharing PaSb8 hexagonal bipyramids. There are two inequivalent Sb sites. In the first Sb site, Sb(1) is bonded to six equivalent Pa(1) atoms to form a mixture of distorted face, corner, and edge-sharing SbPa6 octahedra. The corner-sharing octahedral tilt angles range from 15-51°. In the second Sb site, Sb(2) is bonded to six equivalent Pa(1) atoms to form a mixture of distorted face, corner, and edge-sharing SbPa6 octahedra. The corner-sharing octahedral tilt angles range from 15-51°. is represented by the CIF file [CIF]
data_Pa3Sb4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.007
_cell_length_b   8.007
_cell_length_c   8.050
_cell_angle_alpha   109.578
_cell_angle_beta   109.578
_cell_angle_gamma   109.364
_symmetry_Int_Tables_number   1
_cell_volume   396.784
_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
  Pa  Pa0  1  0.749  0.876  0.125  1.0
  Pa  Pa1  1  0.624  0.373  0.249  1.0
  Pa  Pa2  1  0.873  0.124  0.749  1.0
  Pa  Pa3  1  0.127  0.751  0.877  1.0
  Pa  Pa4  1  0.376  0.249  0.625  1.0
  Pa  Pa5  1  0.251  0.627  0.377  1.0
  Sb  Sb6  1  0.658  0.658  0.657  1.0
  Sb  Sb7  1  0.342  0.499  0.999  1.0
  Sb  Sb8  1  0.500  0.000  0.342  1.0
  Sb  Sb9  1  0.001  0.342  0.500  1.0
  Sb  Sb10  1  0.500  1.000  0.842  1.0
  Sb  Sb11  1  0.999  0.842  0.499  1.0
  Sb  Sb12  1  0.158  0.158  0.157  1.0
  Sb  Sb13  1  0.842  0.501  1.000  1.0
[/CIF]
.
The compound described by Pa3Sb4 crystallizes in the trigonal R3c space group. Pa(1) is bonded to two equivalent Sb(2) and six equivalent Sb(1) atoms to form a mixture of distorted face, corner, and edge-sharing PaSb8 hexagonal bipyramids. There are two inequivalent Sb sites. In the first Sb site, Sb(1) is bonded to six equivalent Pa(1) atoms to form a mixture of distorted face, corner, and edge-sharing SbPa6 octahedra. The corner-sharing octahedral tilt angles range from 15-51°. In the second Sb site, Sb(2) is bonded to six equivalent Pa(1) atoms to form a mixture of distorted face, corner, and edge-sharing SbPa6 octahedra. The corner-sharing octahedral tilt angles range from 15-51°. is represented by the CIF file [CIF]
data_Pa3Sb4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.007
_cell_length_b   8.007
_cell_length_c   8.050
_cell_angle_alpha   109.578
_cell_angle_beta   109.578
_cell_angle_gamma   109.364
_symmetry_Int_Tables_number   1
_cell_volume   396.784
_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
  Pa  Pa0  1  0.749  0.876  0.125  1.0
  Pa  Pa1  1  0.624  0.373  0.249  1.0
  Pa  Pa2  1  0.873  0.124  0.749  1.0
  Pa  Pa3  1  0.127  0.751  0.877  1.0
  Pa  Pa4  1  0.376  0.249  0.625  1.0
  Pa  Pa5  1  0.251  0.627  0.377  1.0
  Sb  Sb6  1  0.658  0.658  0.657  1.0
  Sb  Sb7  1  0.342  0.499  0.999  1.0
  Sb  Sb8  1  0.500  0.000  0.342  1.0
  Sb  Sb9  1  0.001  0.342  0.500  1.0
  Sb  Sb10  1  0.500  1.000  0.842  1.0
  Sb  Sb11  1  0.999  0.842  0.499  1.0
  Sb  Sb12  1  0.158  0.158  0.157  1.0
  Sb  Sb13  1  0.842  0.501  1.000  1.0
[/CIF]
.