The crystal structure described by Yb5Pt9 crystallizes in the tetragonal P4_2/mnm space group. There are two inequivalent Yb sites. In the first Yb site, Yb(1) is bonded in a 9-coordinate geometry to one Pt(3), four equivalent Pt(1), and four equivalent Pt(2) atoms. In the second Yb site, Yb(2) is bonded in a distorted q6 geometry to two equivalent Pt(3), four equivalent Pt(1), and four equivalent Pt(2) atoms. There are three inequivalent Pt sites. In the first Pt site, Pt(1) is bonded to one Yb(2) and four equivalent Yb(1) atoms to form distorted PtYb5 cuboctahedra that share corners with ten equivalent Pt(1)Yb5 cuboctahedra,  a cornercorner with one Pt(3)Yb6 octahedra,  an edgeedge with one Pt(1)Yb5 cuboctahedra,  an edgeedge with one Pt(3)Yb6 octahedra,  a faceface with one Pt(1)Yb5 cuboctahedra, and  a faceface with one Pt(3)Yb6 octahedra. The corner-sharing octahedral tilt angles are 61°. In the second Pt site, Pt(2) is bonded in a 5-coordinate geometry to one Yb(2) and four equivalent Yb(1) atoms. In the third Pt site, Pt(3) is bonded to two equivalent Yb(2) and four equivalent Yb(1) atoms to form distorted PtYb6 octahedra that share corners with four equivalent Pt(1)Yb5 cuboctahedra, corners with two equivalent Pt(3)Yb6 octahedra, edges with four equivalent Pt(1)Yb5 cuboctahedra, and faces with four equivalent Pt(1)Yb5 cuboctahedra. The corner-sharing octahedra are not tilted. is represented by the Crystallographic Information File (CIF) [CIF]
data_Yb5Pt9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.716
_cell_length_b   9.716
_cell_length_c   5.688
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   536.979
_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
  Yb  Yb0  1  0.454  0.812  0.000  1.0
  Yb  Yb1  1  0.546  0.188  0.000  1.0
  Yb  Yb2  1  0.188  0.546  0.000  1.0
  Yb  Yb3  1  0.812  0.454  0.000  1.0
  Yb  Yb4  1  0.500  0.500  0.500  1.0
  Yb  Yb5  1  0.312  0.046  0.500  1.0
  Yb  Yb6  1  0.688  0.954  0.500  1.0
  Yb  Yb7  1  0.954  0.688  0.500  1.0
  Yb  Yb8  1  0.046  0.312  0.500  1.0
  Yb  Yb9  1  0.000  0.000  0.000  1.0
  Pt  Pt10  1  0.189  0.811  0.251  1.0
  Pt  Pt11  1  0.811  0.189  0.749  1.0
  Pt  Pt12  1  0.811  0.189  0.251  1.0
  Pt  Pt13  1  0.189  0.811  0.749  1.0
  Pt  Pt14  1  0.438  0.776  0.500  1.0
  Pt  Pt15  1  0.562  0.224  0.500  1.0
  Pt  Pt16  1  0.224  0.562  0.500  1.0
  Pt  Pt17  1  0.776  0.438  0.500  1.0
  Pt  Pt18  1  0.311  0.311  0.249  1.0
  Pt  Pt19  1  0.689  0.689  0.751  1.0
  Pt  Pt20  1  0.689  0.689  0.249  1.0
  Pt  Pt21  1  0.311  0.311  0.751  1.0
  Pt  Pt22  1  0.276  0.062  0.000  1.0
  Pt  Pt23  1  0.724  0.938  0.000  1.0
  Pt  Pt24  1  0.938  0.724  0.000  1.0
  Pt  Pt25  1  0.062  0.276  0.000  1.0
  Pt  Pt26  1  0.000  0.000  0.500  1.0
  Pt  Pt27  1  0.500  0.500  0.000  1.0
[/CIF]
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The crystal structure described by Yb5Pt9 crystallizes in the tetragonal P4_2/mnm space group. There are two inequivalent Yb sites. In the first Yb site, Yb(1) is bonded in a 9-coordinate geometry to one Pt(3), four equivalent Pt(1), and four equivalent Pt(2) atoms. In the second Yb site, Yb(2) is bonded in a distorted q6 geometry to two equivalent Pt(3), four equivalent Pt(1), and four equivalent Pt(2) atoms. There are three inequivalent Pt sites. In the first Pt site, Pt(1) is bonded to one Yb(2) and four equivalent Yb(1) atoms to form distorted PtYb5 cuboctahedra that share corners with ten equivalent Pt(1)Yb5 cuboctahedra,  a cornercorner with one Pt(3)Yb6 octahedra,  an edgeedge with one Pt(1)Yb5 cuboctahedra,  an edgeedge with one Pt(3)Yb6 octahedra,  a faceface with one Pt(1)Yb5 cuboctahedra, and  a faceface with one Pt(3)Yb6 octahedra. The corner-sharing octahedral tilt angles are 61°. In the second Pt site, Pt(2) is bonded in a 5-coordinate geometry to one Yb(2) and four equivalent Yb(1) atoms. In the third Pt site, Pt(3) is bonded to two equivalent Yb(2) and four equivalent Yb(1) atoms to form distorted PtYb6 octahedra that share corners with four equivalent Pt(1)Yb5 cuboctahedra, corners with two equivalent Pt(3)Yb6 octahedra, edges with four equivalent Pt(1)Yb5 cuboctahedra, and faces with four equivalent Pt(1)Yb5 cuboctahedra. The corner-sharing octahedra are not tilted. is represented by the Crystallographic Information File (CIF) [CIF]
data_Yb5Pt9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.716
_cell_length_b   9.716
_cell_length_c   5.688
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   536.979
_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
  Yb  Yb0  1  0.454  0.812  0.000  1.0
  Yb  Yb1  1  0.546  0.188  0.000  1.0
  Yb  Yb2  1  0.188  0.546  0.000  1.0
  Yb  Yb3  1  0.812  0.454  0.000  1.0
  Yb  Yb4  1  0.500  0.500  0.500  1.0
  Yb  Yb5  1  0.312  0.046  0.500  1.0
  Yb  Yb6  1  0.688  0.954  0.500  1.0
  Yb  Yb7  1  0.954  0.688  0.500  1.0
  Yb  Yb8  1  0.046  0.312  0.500  1.0
  Yb  Yb9  1  0.000  0.000  0.000  1.0
  Pt  Pt10  1  0.189  0.811  0.251  1.0
  Pt  Pt11  1  0.811  0.189  0.749  1.0
  Pt  Pt12  1  0.811  0.189  0.251  1.0
  Pt  Pt13  1  0.189  0.811  0.749  1.0
  Pt  Pt14  1  0.438  0.776  0.500  1.0
  Pt  Pt15  1  0.562  0.224  0.500  1.0
  Pt  Pt16  1  0.224  0.562  0.500  1.0
  Pt  Pt17  1  0.776  0.438  0.500  1.0
  Pt  Pt18  1  0.311  0.311  0.249  1.0
  Pt  Pt19  1  0.689  0.689  0.751  1.0
  Pt  Pt20  1  0.689  0.689  0.249  1.0
  Pt  Pt21  1  0.311  0.311  0.751  1.0
  Pt  Pt22  1  0.276  0.062  0.000  1.0
  Pt  Pt23  1  0.724  0.938  0.000  1.0
  Pt  Pt24  1  0.938  0.724  0.000  1.0
  Pt  Pt25  1  0.062  0.276  0.000  1.0
  Pt  Pt26  1  0.000  0.000  0.500  1.0
  Pt  Pt27  1  0.500  0.500  0.000  1.0
[/CIF]
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