The structure described by InPt2 crystallizes in the monoclinic P2/m space group. There are ten inequivalent Pt sites. In the first Pt site, Pt(1) is bonded to one Pt(10), two equivalent Pt(5), two equivalent Pt(7), two equivalent Pt(9), one In(4), two equivalent In(1), and two equivalent In(3) atoms to form distorted PtIn5Pt7 cuboctahedra that share  a cornercorner with one Pt(2)In6Pt6 cuboctahedra, corners with three equivalent Pt(1)In5Pt7 cuboctahedra, corners with four equivalent Pt(3)In4Pt8 cuboctahedra, corners with four equivalent Pt(4)In6Pt6 cuboctahedra, edges with two equivalent Pt(10)In4Pt8 cuboctahedra, edges with four equivalent Pt(5)In4Pt8 cuboctahedra, edges with four equivalent In(3)Pt12 cuboctahedra,  a faceface with one Pt(10)In4Pt8 cuboctahedra, faces with two equivalent Pt(3)In4Pt8 cuboctahedra, faces with two equivalent Pt(5)In4Pt8 cuboctahedra, faces with two equivalent Pt(1)In5Pt7 cuboctahedra, faces with two equivalent Pt(4)In6Pt6 cuboctahedra, and faces with two equivalent In(3)Pt12 cuboctahedra. In the second Pt site, Pt(2) is bonded to two equivalent Pt(6), four equivalent Pt(8), two equivalent In(4), and four equivalent In(2) atoms to form distorted PtIn6Pt6 cuboctahedra that share corners with two equivalent Pt(1)In5Pt7 cuboctahedra, corners with two equivalent Pt(2)In6Pt6 cuboctahedra, corners with eight equivalent Pt(4)In6Pt6 cuboctahedra, faces with two equivalent Pt(2)In6Pt6 cuboctahedra, and faces with four equivalent Pt(4)In6Pt6 cuboctahedra. In the third Pt site, Pt(3) is bonded to two equivalent Pt(10), two equivalent Pt(5), four equivalent Pt(9), and four equivalent In(3) atoms to form distorted PtIn4Pt8 cuboctahedra that share corners with two equivalent Pt(3)In4Pt8 cuboctahedra, corners with two equivalent Pt(4)In6Pt6 cuboctahedra, corners with eight equivalent Pt(1)In5Pt7 cuboctahedra, edges with four equivalent Pt(10)In4Pt8 cuboctahedra, edges with four equivalent Pt(5)In4Pt8 cuboctahedra, edges with four equivalent In(3)Pt12 cuboctahedra, faces with two equivalent Pt(10)In4Pt8 cuboctahedra, faces with two equivalent Pt(3)In4Pt8 cuboctahedra, faces with two equivalent Pt(5)In4Pt8 cuboctahedra, faces with four equivalent Pt(1)In5Pt7 cuboctahedra, and faces with four equivalent In(3)Pt12 cuboctahedra. In the fourth Pt site, Pt(4) is bonded to one Pt(5), one Pt(6), two equivalent Pt(7), two equivalent Pt(8), two equivalent In(1), two equivalent In(2), and two equivalent In(4) atoms to form distorted PtIn6Pt6 cuboctahedra that share  a cornercorner with one Pt(3)In4Pt8 cuboctahedra, corners with three equivalent Pt(4)In6Pt6 cuboctahedra, corners with four equivalent Pt(1)In5Pt7 cuboctahedra, corners with four equivalent Pt(2)In6Pt6 cuboctahedra, edges with two equivalent Pt(5)In4Pt8 cuboctahedra, edges with two equivalent In(3)Pt12 cuboctahedra,  a faceface with one Pt(5)In4Pt8 cuboctahedra, faces with two equivalent Pt(1)In5Pt7 cuboctahedra, faces with two equivalent Pt(2)In6Pt6 cuboctahedra, and faces with two equivalent Pt(4)In6Pt6 cuboctahedra. In the fifth Pt site, Pt(5) is bonded to one Pt(3), one Pt(4), two equivalent Pt(1), two equivalent Pt(7), two equivalent Pt(9), two equivalent In(1), and two equivalent In(3) atoms to form distorted PtIn4Pt8 cuboctahedra that share corners with three equivalent Pt(5)In4Pt8 cuboctahedra, corners with four equivalent Pt(10)In4Pt8 cuboctahedra, edges with two equivalent Pt(3)In4Pt8 cuboctahedra, edges with two equivalent Pt(4)In6Pt6 cuboctahedra, edges with four equivalent Pt(1)In5Pt7 cuboctahedra, edges with four equivalent In(3)Pt12 cuboctahedra,  a faceface with one Pt(3)In4Pt8 cuboctahedra,  a faceface with one Pt(4)In6Pt6 cuboctahedra, faces with two equivalent Pt(10)In4Pt8 cuboctahedra, faces with two equivalent Pt(5)In4Pt8 cuboctahedra, faces with two equivalent Pt(1)In5Pt7 cuboctahedra, and faces with two equivalent In(3)Pt12 cuboctahedra. In the sixth Pt site, Pt(6) is bonded in a distorted square co-planar geometry to two equivalent Pt(2), two equivalent Pt(4), and four equivalent In(2) atoms. In the seventh Pt site, Pt(7) is bonded in a 6-coordinate geometry to two equivalent Pt(1), two equivalent Pt(4), two equivalent Pt(5), one In(2), one In(3), two equivalent In(1), and two equivalent In(4) atoms. In the eighth Pt site, Pt(8) is bonded in a 6-coordinate geometry to two equivalent Pt(2), two equivalent Pt(4), one In(1), two equivalent In(4), and three equivalent In(2) atoms. In the ninth Pt site, Pt(9) is bonded in a distorted rectangular see-saw-like geometry to two equivalent Pt(1), two equivalent Pt(10), two equivalent Pt(3), two equivalent Pt(5), one In(1), and three equivalent In(3) atoms. In the tenth Pt site, Pt(10) is bonded to two equivalent Pt(1), two equivalent Pt(3), four equivalent Pt(9), and four equivalent In(3) atoms to form PtIn4Pt8 cuboctahedra that share corners with two equivalent Pt(10)In4Pt8 cuboctahedra, corners with eight equivalent Pt(5)In4Pt8 cuboctahedra, edges with four equivalent Pt(3)In4Pt8 cuboctahedra, edges with four equivalent Pt(1)In5Pt7 cuboctahedra, edges with four equivalent In(3)Pt12 cuboctahedra, faces with two equivalent Pt(10)In4Pt8 cuboctahedra, faces with two equivalent Pt(3)In4Pt8 cuboctahedra, faces with two equivalent Pt(1)In5Pt7 cuboctahedra, faces with four equivalent Pt(5)In4Pt8 cuboctahedra, and faces with four equivalent In(3)Pt12 cuboctahedra. There are four inequivalent In sites. In the first In site, In(1) is bonded in a 10-coordinate geometry to one Pt(8), one Pt(9), two equivalent Pt(1), two equivalent Pt(4), two equivalent Pt(5), and two equivalent Pt(7) atoms. In the second In site, In(2) is bonded in a 10-coordinate geometry to one Pt(7), two equivalent Pt(2), two equivalent Pt(4), two equivalent Pt(6), and three equivalent Pt(8) atoms. In the third In site, In(3) is bonded to one Pt(7), two equivalent Pt(1), two equivalent Pt(10), two equivalent Pt(3), two equivalent Pt(5), and three equivalent Pt(9) atoms to form InPt12 cuboctahedra that share corners with six equivalent In(3)Pt12 cuboctahedra, edges with two equivalent Pt(10)In4Pt8 cuboctahedra, edges with two equivalent Pt(3)In4Pt8 cuboctahedra, edges with two equivalent Pt(4)In6Pt6 cuboctahedra, edges with four equivalent Pt(5)In4Pt8 cuboctahedra, edges with four equivalent Pt(1)In5Pt7 cuboctahedra, faces with two equivalent Pt(10)In4Pt8 cuboctahedra, faces with two equivalent Pt(3)In4Pt8 cuboctahedra, faces with two equivalent Pt(5)In4Pt8 cuboctahedra, faces with two equivalent Pt(1)In5Pt7 cuboctahedra, and faces with four equivalent In(3)Pt12 cuboctahedra. In the fourth In site, In(4) is bonded in a distorted body-centered cubic geometry to one Pt(1), one Pt(2), two equivalent Pt(4), two equivalent Pt(7), and two equivalent Pt(8) atoms. is represented by the CIF file [CIF]
data_InPt2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.109
_cell_length_b   5.703
_cell_length_c   17.126
_cell_angle_alpha   87.298
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   400.841
_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
  In  In0  1  0.500  0.708  0.238  1.0
  In  In1  1  0.500  0.726  0.575  1.0
  In  In2  1  0.500  0.759  0.916  1.0
  In  In3  1  0.500  0.241  0.084  1.0
  In  In4  1  0.500  0.274  0.425  1.0
  In  In5  1  0.500  0.292  0.762  1.0
  In  In6  1  0.000  0.991  0.331  1.0
  In  In7  1  0.000  0.009  0.669  1.0
  Pt  Pt8  1  0.000  0.981  0.168  1.0
  Pt  Pt9  1  0.000  0.000  0.500  1.0
  Pt  Pt10  1  0.000  0.019  0.832  1.0
  Pt  Pt11  1  0.000  0.500  0.000  1.0
  Pt  Pt12  1  0.000  0.491  0.333  1.0
  Pt  Pt13  1  0.000  0.509  0.667  1.0
  Pt  Pt14  1  0.000  0.477  0.165  1.0
  Pt  Pt15  1  0.000  0.500  0.500  1.0
  Pt  Pt16  1  0.000  0.523  0.835  1.0
  Pt  Pt17  1  0.500  0.221  0.255  1.0
  Pt  Pt18  1  0.500  0.232  0.591  1.0
  Pt  Pt19  1  0.500  0.255  0.921  1.0
  Pt  Pt20  1  0.500  0.745  0.079  1.0
  Pt  Pt21  1  0.500  0.768  0.409  1.0
  Pt  Pt22  1  0.500  0.779  0.745  1.0
  Pt  Pt23  1  0.000  0.000  0.000  1.0
[/CIF]
.
The structure described by InPt2 crystallizes in the monoclinic P2/m space group. There are ten inequivalent Pt sites. In the first Pt site, Pt(1) is bonded to one Pt(10), two equivalent Pt(5), two equivalent Pt(7), two equivalent Pt(9), one In(4), two equivalent In(1), and two equivalent In(3) atoms to form distorted PtIn5Pt7 cuboctahedra that share  a cornercorner with one Pt(2)In6Pt6 cuboctahedra, corners with three equivalent Pt(1)In5Pt7 cuboctahedra, corners with four equivalent Pt(3)In4Pt8 cuboctahedra, corners with four equivalent Pt(4)In6Pt6 cuboctahedra, edges with two equivalent Pt(10)In4Pt8 cuboctahedra, edges with four equivalent Pt(5)In4Pt8 cuboctahedra, edges with four equivalent In(3)Pt12 cuboctahedra,  a faceface with one Pt(10)In4Pt8 cuboctahedra, faces with two equivalent Pt(3)In4Pt8 cuboctahedra, faces with two equivalent Pt(5)In4Pt8 cuboctahedra, faces with two equivalent Pt(1)In5Pt7 cuboctahedra, faces with two equivalent Pt(4)In6Pt6 cuboctahedra, and faces with two equivalent In(3)Pt12 cuboctahedra. In the second Pt site, Pt(2) is bonded to two equivalent Pt(6), four equivalent Pt(8), two equivalent In(4), and four equivalent In(2) atoms to form distorted PtIn6Pt6 cuboctahedra that share corners with two equivalent Pt(1)In5Pt7 cuboctahedra, corners with two equivalent Pt(2)In6Pt6 cuboctahedra, corners with eight equivalent Pt(4)In6Pt6 cuboctahedra, faces with two equivalent Pt(2)In6Pt6 cuboctahedra, and faces with four equivalent Pt(4)In6Pt6 cuboctahedra. In the third Pt site, Pt(3) is bonded to two equivalent Pt(10), two equivalent Pt(5), four equivalent Pt(9), and four equivalent In(3) atoms to form distorted PtIn4Pt8 cuboctahedra that share corners with two equivalent Pt(3)In4Pt8 cuboctahedra, corners with two equivalent Pt(4)In6Pt6 cuboctahedra, corners with eight equivalent Pt(1)In5Pt7 cuboctahedra, edges with four equivalent Pt(10)In4Pt8 cuboctahedra, edges with four equivalent Pt(5)In4Pt8 cuboctahedra, edges with four equivalent In(3)Pt12 cuboctahedra, faces with two equivalent Pt(10)In4Pt8 cuboctahedra, faces with two equivalent Pt(3)In4Pt8 cuboctahedra, faces with two equivalent Pt(5)In4Pt8 cuboctahedra, faces with four equivalent Pt(1)In5Pt7 cuboctahedra, and faces with four equivalent In(3)Pt12 cuboctahedra. In the fourth Pt site, Pt(4) is bonded to one Pt(5), one Pt(6), two equivalent Pt(7), two equivalent Pt(8), two equivalent In(1), two equivalent In(2), and two equivalent In(4) atoms to form distorted PtIn6Pt6 cuboctahedra that share  a cornercorner with one Pt(3)In4Pt8 cuboctahedra, corners with three equivalent Pt(4)In6Pt6 cuboctahedra, corners with four equivalent Pt(1)In5Pt7 cuboctahedra, corners with four equivalent Pt(2)In6Pt6 cuboctahedra, edges with two equivalent Pt(5)In4Pt8 cuboctahedra, edges with two equivalent In(3)Pt12 cuboctahedra,  a faceface with one Pt(5)In4Pt8 cuboctahedra, faces with two equivalent Pt(1)In5Pt7 cuboctahedra, faces with two equivalent Pt(2)In6Pt6 cuboctahedra, and faces with two equivalent Pt(4)In6Pt6 cuboctahedra. In the fifth Pt site, Pt(5) is bonded to one Pt(3), one Pt(4), two equivalent Pt(1), two equivalent Pt(7), two equivalent Pt(9), two equivalent In(1), and two equivalent In(3) atoms to form distorted PtIn4Pt8 cuboctahedra that share corners with three equivalent Pt(5)In4Pt8 cuboctahedra, corners with four equivalent Pt(10)In4Pt8 cuboctahedra, edges with two equivalent Pt(3)In4Pt8 cuboctahedra, edges with two equivalent Pt(4)In6Pt6 cuboctahedra, edges with four equivalent Pt(1)In5Pt7 cuboctahedra, edges with four equivalent In(3)Pt12 cuboctahedra,  a faceface with one Pt(3)In4Pt8 cuboctahedra,  a faceface with one Pt(4)In6Pt6 cuboctahedra, faces with two equivalent Pt(10)In4Pt8 cuboctahedra, faces with two equivalent Pt(5)In4Pt8 cuboctahedra, faces with two equivalent Pt(1)In5Pt7 cuboctahedra, and faces with two equivalent In(3)Pt12 cuboctahedra. In the sixth Pt site, Pt(6) is bonded in a distorted square co-planar geometry to two equivalent Pt(2), two equivalent Pt(4), and four equivalent In(2) atoms. In the seventh Pt site, Pt(7) is bonded in a 6-coordinate geometry to two equivalent Pt(1), two equivalent Pt(4), two equivalent Pt(5), one In(2), one In(3), two equivalent In(1), and two equivalent In(4) atoms. In the eighth Pt site, Pt(8) is bonded in a 6-coordinate geometry to two equivalent Pt(2), two equivalent Pt(4), one In(1), two equivalent In(4), and three equivalent In(2) atoms. In the ninth Pt site, Pt(9) is bonded in a distorted rectangular see-saw-like geometry to two equivalent Pt(1), two equivalent Pt(10), two equivalent Pt(3), two equivalent Pt(5), one In(1), and three equivalent In(3) atoms. In the tenth Pt site, Pt(10) is bonded to two equivalent Pt(1), two equivalent Pt(3), four equivalent Pt(9), and four equivalent In(3) atoms to form PtIn4Pt8 cuboctahedra that share corners with two equivalent Pt(10)In4Pt8 cuboctahedra, corners with eight equivalent Pt(5)In4Pt8 cuboctahedra, edges with four equivalent Pt(3)In4Pt8 cuboctahedra, edges with four equivalent Pt(1)In5Pt7 cuboctahedra, edges with four equivalent In(3)Pt12 cuboctahedra, faces with two equivalent Pt(10)In4Pt8 cuboctahedra, faces with two equivalent Pt(3)In4Pt8 cuboctahedra, faces with two equivalent Pt(1)In5Pt7 cuboctahedra, faces with four equivalent Pt(5)In4Pt8 cuboctahedra, and faces with four equivalent In(3)Pt12 cuboctahedra. There are four inequivalent In sites. In the first In site, In(1) is bonded in a 10-coordinate geometry to one Pt(8), one Pt(9), two equivalent Pt(1), two equivalent Pt(4), two equivalent Pt(5), and two equivalent Pt(7) atoms. In the second In site, In(2) is bonded in a 10-coordinate geometry to one Pt(7), two equivalent Pt(2), two equivalent Pt(4), two equivalent Pt(6), and three equivalent Pt(8) atoms. In the third In site, In(3) is bonded to one Pt(7), two equivalent Pt(1), two equivalent Pt(10), two equivalent Pt(3), two equivalent Pt(5), and three equivalent Pt(9) atoms to form InPt12 cuboctahedra that share corners with six equivalent In(3)Pt12 cuboctahedra, edges with two equivalent Pt(10)In4Pt8 cuboctahedra, edges with two equivalent Pt(3)In4Pt8 cuboctahedra, edges with two equivalent Pt(4)In6Pt6 cuboctahedra, edges with four equivalent Pt(5)In4Pt8 cuboctahedra, edges with four equivalent Pt(1)In5Pt7 cuboctahedra, faces with two equivalent Pt(10)In4Pt8 cuboctahedra, faces with two equivalent Pt(3)In4Pt8 cuboctahedra, faces with two equivalent Pt(5)In4Pt8 cuboctahedra, faces with two equivalent Pt(1)In5Pt7 cuboctahedra, and faces with four equivalent In(3)Pt12 cuboctahedra. In the fourth In site, In(4) is bonded in a distorted body-centered cubic geometry to one Pt(1), one Pt(2), two equivalent Pt(4), two equivalent Pt(7), and two equivalent Pt(8) atoms. is represented by the CIF file [CIF]
data_InPt2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.109
_cell_length_b   5.703
_cell_length_c   17.126
_cell_angle_alpha   87.298
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   400.841
_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
  In  In0  1  0.500  0.708  0.238  1.0
  In  In1  1  0.500  0.726  0.575  1.0
  In  In2  1  0.500  0.759  0.916  1.0
  In  In3  1  0.500  0.241  0.084  1.0
  In  In4  1  0.500  0.274  0.425  1.0
  In  In5  1  0.500  0.292  0.762  1.0
  In  In6  1  0.000  0.991  0.331  1.0
  In  In7  1  0.000  0.009  0.669  1.0
  Pt  Pt8  1  0.000  0.981  0.168  1.0
  Pt  Pt9  1  0.000  0.000  0.500  1.0
  Pt  Pt10  1  0.000  0.019  0.832  1.0
  Pt  Pt11  1  0.000  0.500  0.000  1.0
  Pt  Pt12  1  0.000  0.491  0.333  1.0
  Pt  Pt13  1  0.000  0.509  0.667  1.0
  Pt  Pt14  1  0.000  0.477  0.165  1.0
  Pt  Pt15  1  0.000  0.500  0.500  1.0
  Pt  Pt16  1  0.000  0.523  0.835  1.0
  Pt  Pt17  1  0.500  0.221  0.255  1.0
  Pt  Pt18  1  0.500  0.232  0.591  1.0
  Pt  Pt19  1  0.500  0.255  0.921  1.0
  Pt  Pt20  1  0.500  0.745  0.079  1.0
  Pt  Pt21  1  0.500  0.768  0.409  1.0
  Pt  Pt22  1  0.500  0.779  0.745  1.0
  Pt  Pt23  1  0.000  0.000  0.000  1.0
[/CIF]
.