The material described by PtGa2 crystallizes in the monoclinic C2/c space group. There are five inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a 8-coordinate geometry to one Ga(1), one Ga(2), one Ga(4), one Ga(7), two equivalent Ga(3), and two equivalent Ga(6) atoms. In the second Pt site, Pt(2) is bonded in a 8-coordinate geometry to two equivalent Ga(4), two equivalent Ga(5), two equivalent Ga(6), and two equivalent Ga(7) atoms. In the third Pt site, Pt(3) is bonded in a 8-coordinate geometry to two equivalent Ga(1), two equivalent Ga(2), two equivalent Ga(3), and two equivalent Ga(8) atoms. In the fourth Pt site, Pt(4) is bonded in a 8-coordinate geometry to one Ga(1), one Ga(2), one Ga(3), one Ga(4), one Ga(5), one Ga(6), one Ga(7), and one Ga(8) atom. In the fifth Pt site, Pt(5) is bonded in a 8-coordinate geometry to one Ga(1), one Ga(2), one Ga(4), one Ga(7), two equivalent Ga(5), and two equivalent Ga(8) atoms. There are eight inequivalent Ga sites. In the first Ga site, Ga(1) is bonded to one Pt(1), one Pt(3), one Pt(4), and one Pt(5) atom to form a mixture of distorted corner and edge-sharing GaPt4 tetrahedra. In the second Ga site, Ga(2) is bonded to one Pt(1), one Pt(3), one Pt(4), and one Pt(5) atom to form a mixture of distorted corner and edge-sharing GaPt4 tetrahedra. In the third Ga site, Ga(3) is bonded to one Pt(3), one Pt(4), and two equivalent Pt(1) atoms to form a mixture of distorted corner and edge-sharing GaPt4 tetrahedra. In the fourth Ga site, Ga(4) is bonded to one Pt(1), one Pt(2), one Pt(4), and one Pt(5) atom to form a mixture of distorted corner and edge-sharing GaPt4 tetrahedra. In the fifth Ga site, Ga(5) is bonded to one Pt(2), one Pt(4), and two equivalent Pt(5) atoms to form a mixture of distorted corner and edge-sharing GaPt4 tetrahedra. In the sixth Ga site, Ga(6) is bonded to one Pt(2), one Pt(4), and two equivalent Pt(1) atoms to form a mixture of distorted corner and edge-sharing GaPt4 tetrahedra. In the seventh Ga site, Ga(7) is bonded to one Pt(1), one Pt(2), one Pt(4), and one Pt(5) atom to form a mixture of distorted corner and edge-sharing GaPt4 tetrahedra. In the eighth Ga site, Ga(8) is bonded to one Pt(3), one Pt(4), and two equivalent Pt(5) atoms to form a mixture of distorted corner and edge-sharing GaPt4 tetrahedra. is represented by the CIF file [CIF]
data_Ga2Pt
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.476
_cell_length_b   8.476
_cell_length_c   12.369
_cell_angle_alpha   110.012
_cell_angle_beta   110.012
_cell_angle_gamma   89.940
_symmetry_Int_Tables_number   1
_cell_volume   777.671
_cell_formula_units_Z   16
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
  Ga  Ga0  1  0.354  0.290  0.124  1.0
  Ga  Ga1  1  0.146  0.667  0.876  1.0
  Ga  Ga2  1  0.583  0.520  0.124  1.0
  Ga  Ga3  1  0.790  0.771  0.624  1.0
  Ga  Ga4  1  0.417  0.480  0.876  1.0
  Ga  Ga5  1  0.854  0.333  0.124  1.0
  Ga  Ga6  1  0.896  0.917  0.376  1.0
  Ga  Ga7  1  0.083  0.104  0.124  1.0
  Ga  Ga8  1  0.040  0.604  0.124  1.0
  Ga  Ga9  1  0.833  0.271  0.624  1.0
  Ga  Ga10  1  0.333  0.854  0.624  1.0
  Ga  Ga11  1  0.460  0.980  0.876  1.0
  Ga  Ga12  1  0.917  0.896  0.876  1.0
  Ga  Ga13  1  0.104  0.083  0.624  1.0
  Ga  Ga14  1  0.271  0.833  0.124  1.0
  Ga  Ga15  1  0.960  0.396  0.876  1.0
  Ga  Ga16  1  0.020  0.540  0.624  1.0
  Ga  Ga17  1  0.667  0.146  0.376  1.0
  Ga  Ga18  1  0.480  0.417  0.376  1.0
  Ga  Ga19  1  0.710  0.646  0.376  1.0
  Ga  Ga20  1  0.540  0.020  0.124  1.0
  Ga  Ga21  1  0.229  0.210  0.876  1.0
  Ga  Ga22  1  0.210  0.229  0.376  1.0
  Ga  Ga23  1  0.167  0.729  0.376  1.0
  Ga  Ga24  1  0.729  0.167  0.876  1.0
  Ga  Ga25  1  0.396  0.960  0.376  1.0
  Ga  Ga26  1  0.520  0.583  0.624  1.0
  Ga  Ga27  1  0.771  0.790  0.124  1.0
  Ga  Ga28  1  0.290  0.354  0.624  1.0
  Ga  Ga29  1  0.646  0.710  0.876  1.0
  Ga  Ga30  1  0.980  0.460  0.376  1.0
  Ga  Ga31  1  0.604  0.040  0.624  1.0
  Pt  Pt32  1  0.515  0.265  0.531  1.0
  Pt  Pt33  1  0.735  0.485  0.969  1.0
  Pt  Pt34  1  0.074  0.926  0.250  1.0
  Pt  Pt35  1  0.676  0.324  0.250  1.0
  Pt  Pt36  1  0.426  0.176  0.750  1.0
  Pt  Pt37  1  0.765  0.015  0.031  1.0
  Pt  Pt38  1  0.265  0.515  0.031  1.0
  Pt  Pt39  1  0.485  0.735  0.469  1.0
  Pt  Pt40  1  0.015  0.765  0.531  1.0
  Pt  Pt41  1  0.926  0.074  0.750  1.0
  Pt  Pt42  1  0.574  0.824  0.250  1.0
  Pt  Pt43  1  0.235  0.985  0.969  1.0
  Pt  Pt44  1  0.824  0.574  0.750  1.0
  Pt  Pt45  1  0.324  0.676  0.750  1.0
  Pt  Pt46  1  0.985  0.235  0.469  1.0
  Pt  Pt47  1  0.176  0.426  0.250  1.0
[/CIF]
.
The material described by PtGa2 crystallizes in the monoclinic C2/c space group. There are five inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a 8-coordinate geometry to one Ga(1), one Ga(2), one Ga(4), one Ga(7), two equivalent Ga(3), and two equivalent Ga(6) atoms. In the second Pt site, Pt(2) is bonded in a 8-coordinate geometry to two equivalent Ga(4), two equivalent Ga(5), two equivalent Ga(6), and two equivalent Ga(7) atoms. In the third Pt site, Pt(3) is bonded in a 8-coordinate geometry to two equivalent Ga(1), two equivalent Ga(2), two equivalent Ga(3), and two equivalent Ga(8) atoms. In the fourth Pt site, Pt(4) is bonded in a 8-coordinate geometry to one Ga(1), one Ga(2), one Ga(3), one Ga(4), one Ga(5), one Ga(6), one Ga(7), and one Ga(8) atom. In the fifth Pt site, Pt(5) is bonded in a 8-coordinate geometry to one Ga(1), one Ga(2), one Ga(4), one Ga(7), two equivalent Ga(5), and two equivalent Ga(8) atoms. There are eight inequivalent Ga sites. In the first Ga site, Ga(1) is bonded to one Pt(1), one Pt(3), one Pt(4), and one Pt(5) atom to form a mixture of distorted corner and edge-sharing GaPt4 tetrahedra. In the second Ga site, Ga(2) is bonded to one Pt(1), one Pt(3), one Pt(4), and one Pt(5) atom to form a mixture of distorted corner and edge-sharing GaPt4 tetrahedra. In the third Ga site, Ga(3) is bonded to one Pt(3), one Pt(4), and two equivalent Pt(1) atoms to form a mixture of distorted corner and edge-sharing GaPt4 tetrahedra. In the fourth Ga site, Ga(4) is bonded to one Pt(1), one Pt(2), one Pt(4), and one Pt(5) atom to form a mixture of distorted corner and edge-sharing GaPt4 tetrahedra. In the fifth Ga site, Ga(5) is bonded to one Pt(2), one Pt(4), and two equivalent Pt(5) atoms to form a mixture of distorted corner and edge-sharing GaPt4 tetrahedra. In the sixth Ga site, Ga(6) is bonded to one Pt(2), one Pt(4), and two equivalent Pt(1) atoms to form a mixture of distorted corner and edge-sharing GaPt4 tetrahedra. In the seventh Ga site, Ga(7) is bonded to one Pt(1), one Pt(2), one Pt(4), and one Pt(5) atom to form a mixture of distorted corner and edge-sharing GaPt4 tetrahedra. In the eighth Ga site, Ga(8) is bonded to one Pt(3), one Pt(4), and two equivalent Pt(5) atoms to form a mixture of distorted corner and edge-sharing GaPt4 tetrahedra. is represented by the CIF file [CIF]
data_Ga2Pt
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.476
_cell_length_b   8.476
_cell_length_c   12.369
_cell_angle_alpha   110.012
_cell_angle_beta   110.012
_cell_angle_gamma   89.940
_symmetry_Int_Tables_number   1
_cell_volume   777.671
_cell_formula_units_Z   16
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
  Ga  Ga0  1  0.354  0.290  0.124  1.0
  Ga  Ga1  1  0.146  0.667  0.876  1.0
  Ga  Ga2  1  0.583  0.520  0.124  1.0
  Ga  Ga3  1  0.790  0.771  0.624  1.0
  Ga  Ga4  1  0.417  0.480  0.876  1.0
  Ga  Ga5  1  0.854  0.333  0.124  1.0
  Ga  Ga6  1  0.896  0.917  0.376  1.0
  Ga  Ga7  1  0.083  0.104  0.124  1.0
  Ga  Ga8  1  0.040  0.604  0.124  1.0
  Ga  Ga9  1  0.833  0.271  0.624  1.0
  Ga  Ga10  1  0.333  0.854  0.624  1.0
  Ga  Ga11  1  0.460  0.980  0.876  1.0
  Ga  Ga12  1  0.917  0.896  0.876  1.0
  Ga  Ga13  1  0.104  0.083  0.624  1.0
  Ga  Ga14  1  0.271  0.833  0.124  1.0
  Ga  Ga15  1  0.960  0.396  0.876  1.0
  Ga  Ga16  1  0.020  0.540  0.624  1.0
  Ga  Ga17  1  0.667  0.146  0.376  1.0
  Ga  Ga18  1  0.480  0.417  0.376  1.0
  Ga  Ga19  1  0.710  0.646  0.376  1.0
  Ga  Ga20  1  0.540  0.020  0.124  1.0
  Ga  Ga21  1  0.229  0.210  0.876  1.0
  Ga  Ga22  1  0.210  0.229  0.376  1.0
  Ga  Ga23  1  0.167  0.729  0.376  1.0
  Ga  Ga24  1  0.729  0.167  0.876  1.0
  Ga  Ga25  1  0.396  0.960  0.376  1.0
  Ga  Ga26  1  0.520  0.583  0.624  1.0
  Ga  Ga27  1  0.771  0.790  0.124  1.0
  Ga  Ga28  1  0.290  0.354  0.624  1.0
  Ga  Ga29  1  0.646  0.710  0.876  1.0
  Ga  Ga30  1  0.980  0.460  0.376  1.0
  Ga  Ga31  1  0.604  0.040  0.624  1.0
  Pt  Pt32  1  0.515  0.265  0.531  1.0
  Pt  Pt33  1  0.735  0.485  0.969  1.0
  Pt  Pt34  1  0.074  0.926  0.250  1.0
  Pt  Pt35  1  0.676  0.324  0.250  1.0
  Pt  Pt36  1  0.426  0.176  0.750  1.0
  Pt  Pt37  1  0.765  0.015  0.031  1.0
  Pt  Pt38  1  0.265  0.515  0.031  1.0
  Pt  Pt39  1  0.485  0.735  0.469  1.0
  Pt  Pt40  1  0.015  0.765  0.531  1.0
  Pt  Pt41  1  0.926  0.074  0.750  1.0
  Pt  Pt42  1  0.574  0.824  0.250  1.0
  Pt  Pt43  1  0.235  0.985  0.969  1.0
  Pt  Pt44  1  0.824  0.574  0.750  1.0
  Pt  Pt45  1  0.324  0.676  0.750  1.0
  Pt  Pt46  1  0.985  0.235  0.469  1.0
  Pt  Pt47  1  0.176  0.426  0.250  1.0
[/CIF]
.