The material described by Pt3Sb is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Pt sites. In the first Pt site, Pt(1) is bonded to eight Pt(1,1) and four equivalent Sb(1) atoms to form distorted PtSb4Pt8 cuboctahedra that share corners with four equivalent Sb(1)Pt12 cuboctahedra; corners with fourteen Pt(1,1)Sb4Pt8 cuboctahedra; edges with six equivalent Sb(1)Pt12 cuboctahedra; edges with twelve Pt(1,1)Sb4Pt8 cuboctahedra; faces with four equivalent Sb(1)Pt12 cuboctahedra; and faces with sixteen Pt(1,1)Sb4Pt8 cuboctahedra. In the second Pt site, Pt(1) is bonded to eight equivalent Pt(1) and four equivalent Sb(1) atoms to form distorted PtSb4Pt8 cuboctahedra that share corners with four equivalent Sb(1)Pt12 cuboctahedra; corners with fourteen Pt(1,1)Sb4Pt8 cuboctahedra; edges with six equivalent Sb(1)Pt12 cuboctahedra; edges with twelve equivalent Pt(1)Sb4Pt8 cuboctahedra; faces with four equivalent Sb(1)Pt12 cuboctahedra; and faces with sixteen Pt(1,1)Sb4Pt8 cuboctahedra. Sb(1) is bonded to twelve Pt(1,1) atoms to form SbPt12 cuboctahedra that share corners with six equivalent Sb(1)Pt12 cuboctahedra; corners with twelve Pt(1,1)Sb4Pt8 cuboctahedra; edges with eighteen Pt(1,1)Sb4Pt8 cuboctahedra; faces with eight equivalent Sb(1)Pt12 cuboctahedra; and faces with twelve Pt(1,1)Sb4Pt8 cuboctahedra. is represented by the CIF card [CIF]
data_SbPt3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.687
_cell_length_b   5.687
_cell_length_c   4.939
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   138.351
_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
  Sb  Sb0  1  0.333  0.667  0.750  1.0
  Sb  Sb1  1  0.667  0.333  0.250  1.0
  Pt  Pt2  1  0.165  0.331  0.250  1.0
  Pt  Pt3  1  0.669  0.835  0.250  1.0
  Pt  Pt4  1  0.165  0.835  0.250  1.0
  Pt  Pt5  1  0.835  0.669  0.750  1.0
  Pt  Pt6  1  0.331  0.165  0.750  1.0
  Pt  Pt7  1  0.835  0.165  0.750  1.0
[/CIF]
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The material described by Pt3Sb is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Pt sites. In the first Pt site, Pt(1) is bonded to eight Pt(1,1) and four equivalent Sb(1) atoms to form distorted PtSb4Pt8 cuboctahedra that share corners with four equivalent Sb(1)Pt12 cuboctahedra; corners with fourteen Pt(1,1)Sb4Pt8 cuboctahedra; edges with six equivalent Sb(1)Pt12 cuboctahedra; edges with twelve Pt(1,1)Sb4Pt8 cuboctahedra; faces with four equivalent Sb(1)Pt12 cuboctahedra; and faces with sixteen Pt(1,1)Sb4Pt8 cuboctahedra. In the second Pt site, Pt(1) is bonded to eight equivalent Pt(1) and four equivalent Sb(1) atoms to form distorted PtSb4Pt8 cuboctahedra that share corners with four equivalent Sb(1)Pt12 cuboctahedra; corners with fourteen Pt(1,1)Sb4Pt8 cuboctahedra; edges with six equivalent Sb(1)Pt12 cuboctahedra; edges with twelve equivalent Pt(1)Sb4Pt8 cuboctahedra; faces with four equivalent Sb(1)Pt12 cuboctahedra; and faces with sixteen Pt(1,1)Sb4Pt8 cuboctahedra. Sb(1) is bonded to twelve Pt(1,1) atoms to form SbPt12 cuboctahedra that share corners with six equivalent Sb(1)Pt12 cuboctahedra; corners with twelve Pt(1,1)Sb4Pt8 cuboctahedra; edges with eighteen Pt(1,1)Sb4Pt8 cuboctahedra; faces with eight equivalent Sb(1)Pt12 cuboctahedra; and faces with twelve Pt(1,1)Sb4Pt8 cuboctahedra. is represented by the CIF card [CIF]
data_SbPt3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.687
_cell_length_b   5.687
_cell_length_c   4.939
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   138.351
_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
  Sb  Sb0  1  0.333  0.667  0.750  1.0
  Sb  Sb1  1  0.667  0.333  0.250  1.0
  Pt  Pt2  1  0.165  0.331  0.250  1.0
  Pt  Pt3  1  0.669  0.835  0.250  1.0
  Pt  Pt4  1  0.165  0.835  0.250  1.0
  Pt  Pt5  1  0.835  0.669  0.750  1.0
  Pt  Pt6  1  0.331  0.165  0.750  1.0
  Pt  Pt7  1  0.835  0.165  0.750  1.0
[/CIF]
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