The material described by PtSiSb crystallizes in the orthorhombic Pbca space group. Pt(1) is bonded to three equivalent Si(1) and three equivalent Sb(1) atoms to form distorted PtSi3Sb3 octahedra that share corners with ten equivalent Pt(1)Si3Sb3 octahedra, corners with three equivalent Si(1)SbPt3 tetrahedra, corners with three equivalent Sb(1)SiPt3 tetrahedra, and  an edgeedge with one Pt(1)Si3Sb3 octahedra. The corner-sharing octahedral tilt angles range from 49-65°. Si(1) is bonded to three equivalent Pt(1) and one Sb(1) atom to form distorted SiSbPt3 tetrahedra that share corners with three equivalent Pt(1)Si3Sb3 octahedra, corners with four equivalent Si(1)SbPt3 tetrahedra, corners with nine equivalent Sb(1)SiPt3 tetrahedra, and  an edgeedge with one Si(1)SbPt3 tetrahedra. The corner-sharing octahedral tilt angles range from 73-85°. Sb(1) is bonded to three equivalent Pt(1) and one Si(1) atom to form SbSiPt3 tetrahedra that share corners with three equivalent Pt(1)Si3Sb3 octahedra, corners with six equivalent Sb(1)SiPt3 tetrahedra, and corners with nine equivalent Si(1)SbPt3 tetrahedra. The corner-sharing octahedral tilt angles range from 72-75°. is represented by the Crystallographic Information File (CIF) [CIF]
data_SiSbPt
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.355
_cell_length_b   6.377
_cell_length_c   11.550
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   468.090
_cell_formula_units_Z   8
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
  Si  Si0  1  0.855  0.265  0.426  1.0
  Si  Si1  1  0.355  0.235  0.574  1.0
  Si  Si2  1  0.145  0.765  0.074  1.0
  Si  Si3  1  0.645  0.735  0.926  1.0
  Si  Si4  1  0.145  0.735  0.574  1.0
  Si  Si5  1  0.645  0.765  0.426  1.0
  Si  Si6  1  0.855  0.235  0.926  1.0
  Si  Si7  1  0.355  0.265  0.074  1.0
  Sb  Sb8  1  0.116  0.006  0.327  1.0
  Sb  Sb9  1  0.616  0.494  0.673  1.0
  Sb  Sb10  1  0.884  0.506  0.173  1.0
  Sb  Sb11  1  0.384  0.994  0.827  1.0
  Sb  Sb12  1  0.884  0.994  0.673  1.0
  Sb  Sb13  1  0.384  0.506  0.327  1.0
  Sb  Sb14  1  0.116  0.494  0.827  1.0
  Sb  Sb15  1  0.616  0.006  0.173  1.0
  Pt  Pt16  1  0.511  0.118  0.393  1.0
  Pt  Pt17  1  0.011  0.382  0.607  1.0
  Pt  Pt18  1  0.489  0.618  0.107  1.0
  Pt  Pt19  1  0.989  0.882  0.893  1.0
  Pt  Pt20  1  0.489  0.882  0.607  1.0
  Pt  Pt21  1  0.989  0.618  0.393  1.0
  Pt  Pt22  1  0.511  0.382  0.893  1.0
  Pt  Pt23  1  0.011  0.118  0.107  1.0
[/CIF]
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The material described by PtSiSb crystallizes in the orthorhombic Pbca space group. Pt(1) is bonded to three equivalent Si(1) and three equivalent Sb(1) atoms to form distorted PtSi3Sb3 octahedra that share corners with ten equivalent Pt(1)Si3Sb3 octahedra, corners with three equivalent Si(1)SbPt3 tetrahedra, corners with three equivalent Sb(1)SiPt3 tetrahedra, and  an edgeedge with one Pt(1)Si3Sb3 octahedra. The corner-sharing octahedral tilt angles range from 49-65°. Si(1) is bonded to three equivalent Pt(1) and one Sb(1) atom to form distorted SiSbPt3 tetrahedra that share corners with three equivalent Pt(1)Si3Sb3 octahedra, corners with four equivalent Si(1)SbPt3 tetrahedra, corners with nine equivalent Sb(1)SiPt3 tetrahedra, and  an edgeedge with one Si(1)SbPt3 tetrahedra. The corner-sharing octahedral tilt angles range from 73-85°. Sb(1) is bonded to three equivalent Pt(1) and one Si(1) atom to form SbSiPt3 tetrahedra that share corners with three equivalent Pt(1)Si3Sb3 octahedra, corners with six equivalent Sb(1)SiPt3 tetrahedra, and corners with nine equivalent Si(1)SbPt3 tetrahedra. The corner-sharing octahedral tilt angles range from 72-75°. is represented by the Crystallographic Information File (CIF) [CIF]
data_SiSbPt
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.355
_cell_length_b   6.377
_cell_length_c   11.550
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   468.090
_cell_formula_units_Z   8
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
  Si  Si0  1  0.855  0.265  0.426  1.0
  Si  Si1  1  0.355  0.235  0.574  1.0
  Si  Si2  1  0.145  0.765  0.074  1.0
  Si  Si3  1  0.645  0.735  0.926  1.0
  Si  Si4  1  0.145  0.735  0.574  1.0
  Si  Si5  1  0.645  0.765  0.426  1.0
  Si  Si6  1  0.855  0.235  0.926  1.0
  Si  Si7  1  0.355  0.265  0.074  1.0
  Sb  Sb8  1  0.116  0.006  0.327  1.0
  Sb  Sb9  1  0.616  0.494  0.673  1.0
  Sb  Sb10  1  0.884  0.506  0.173  1.0
  Sb  Sb11  1  0.384  0.994  0.827  1.0
  Sb  Sb12  1  0.884  0.994  0.673  1.0
  Sb  Sb13  1  0.384  0.506  0.327  1.0
  Sb  Sb14  1  0.116  0.494  0.827  1.0
  Sb  Sb15  1  0.616  0.006  0.173  1.0
  Pt  Pt16  1  0.511  0.118  0.393  1.0
  Pt  Pt17  1  0.011  0.382  0.607  1.0
  Pt  Pt18  1  0.489  0.618  0.107  1.0
  Pt  Pt19  1  0.989  0.882  0.893  1.0
  Pt  Pt20  1  0.489  0.882  0.607  1.0
  Pt  Pt21  1  0.989  0.618  0.393  1.0
  Pt  Pt22  1  0.511  0.382  0.893  1.0
  Pt  Pt23  1  0.011  0.118  0.107  1.0
[/CIF]
.