The crystal structure described by Ca10Pt7Si3 crystallizes in the hexagonal P6_3/mcm space group. There are three inequivalent Ca sites. In the first Ca site, Ca(1) is bonded in a 7-coordinate geometry to one Pt(1), four equivalent Pt(2), and two equivalent Si(1) atoms. In the second Ca site, Ca(2) is bonded in a 6-coordinate geometry to six equivalent Pt(2) atoms. In the third Ca site, Ca(3) is bonded in a 9-coordinate geometry to six equivalent Pt(2) and three equivalent Si(1) atoms. There are two inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a 9-coordinate geometry to six equivalent Ca(1) and three equivalent Si(1) atoms. In the second Pt site, Pt(2) is bonded in a 9-coordinate geometry to two equivalent Ca(2), two equivalent Ca(3), four equivalent Ca(1), and one Si(1) atom. Si(1) is bonded in a 9-coordinate geometry to two equivalent Ca(3), four equivalent Ca(1), one Pt(1), and two equivalent Pt(2) atoms. is represented by the CIF card [CIF]
data_Ca10Si3Pt7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.776
_cell_length_b   8.776
_cell_length_c   13.842
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   923.182
_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
  Ca  Ca0  1  1.000  0.741  0.893  1.0
  Ca  Ca1  1  0.259  0.259  0.893  1.0
  Ca  Ca2  1  0.741  0.000  0.893  1.0
  Ca  Ca3  1  1.000  0.259  0.107  1.0
  Ca  Ca4  1  0.741  0.741  0.107  1.0
  Ca  Ca5  1  0.259  0.000  0.107  1.0
  Ca  Ca6  1  0.000  0.259  0.393  1.0
  Ca  Ca7  1  0.741  0.741  0.393  1.0
  Ca  Ca8  1  0.259  0.000  0.393  1.0
  Ca  Ca9  1  0.000  0.741  0.607  1.0
  Ca  Ca10  1  0.259  0.259  0.607  1.0
  Ca  Ca11  1  0.741  1.000  0.607  1.0
  Ca  Ca12  1  0.667  0.333  1.000  1.0
  Ca  Ca13  1  0.333  0.667  1.000  1.0
  Ca  Ca14  1  0.333  0.667  0.500  1.0
  Ca  Ca15  1  0.667  0.333  0.500  1.0
  Ca  Ca16  1  0.333  0.667  0.750  1.0
  Ca  Ca17  1  0.667  0.333  0.750  1.0
  Ca  Ca18  1  0.667  0.333  0.250  1.0
  Ca  Ca19  1  0.333  0.667  0.250  1.0
  Si  Si20  1  0.000  0.285  0.750  1.0
  Si  Si21  1  0.715  0.715  0.750  1.0
  Si  Si22  1  0.285  1.000  0.750  1.0
  Si  Si23  1  1.000  0.715  0.250  1.0
  Si  Si24  1  0.285  0.285  0.250  1.0
  Si  Si25  1  0.715  0.000  0.250  1.0
  Pt  Pt26  1  0.000  0.000  0.750  1.0
  Pt  Pt27  1  0.000  0.000  0.250  1.0
  Pt  Pt28  1  0.000  0.408  0.902  1.0
  Pt  Pt29  1  0.592  0.592  0.902  1.0
  Pt  Pt30  1  0.408  1.000  0.902  1.0
  Pt  Pt31  1  1.000  0.592  0.098  1.0
  Pt  Pt32  1  0.408  0.408  0.098  1.0
  Pt  Pt33  1  0.592  1.000  0.098  1.0
  Pt  Pt34  1  1.000  0.592  0.402  1.0
  Pt  Pt35  1  0.408  0.408  0.402  1.0
  Pt  Pt36  1  0.592  0.000  0.402  1.0
  Pt  Pt37  1  1.000  0.408  0.598  1.0
  Pt  Pt38  1  0.592  0.592  0.598  1.0
  Pt  Pt39  1  0.408  0.000  0.598  1.0
[/CIF]
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The crystal structure described by Ca10Pt7Si3 crystallizes in the hexagonal P6_3/mcm space group. There are three inequivalent Ca sites. In the first Ca site, Ca(1) is bonded in a 7-coordinate geometry to one Pt(1), four equivalent Pt(2), and two equivalent Si(1) atoms. In the second Ca site, Ca(2) is bonded in a 6-coordinate geometry to six equivalent Pt(2) atoms. In the third Ca site, Ca(3) is bonded in a 9-coordinate geometry to six equivalent Pt(2) and three equivalent Si(1) atoms. There are two inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a 9-coordinate geometry to six equivalent Ca(1) and three equivalent Si(1) atoms. In the second Pt site, Pt(2) is bonded in a 9-coordinate geometry to two equivalent Ca(2), two equivalent Ca(3), four equivalent Ca(1), and one Si(1) atom. Si(1) is bonded in a 9-coordinate geometry to two equivalent Ca(3), four equivalent Ca(1), one Pt(1), and two equivalent Pt(2) atoms. is represented by the CIF card [CIF]
data_Ca10Si3Pt7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.776
_cell_length_b   8.776
_cell_length_c   13.842
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   923.182
_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
  Ca  Ca0  1  1.000  0.741  0.893  1.0
  Ca  Ca1  1  0.259  0.259  0.893  1.0
  Ca  Ca2  1  0.741  0.000  0.893  1.0
  Ca  Ca3  1  1.000  0.259  0.107  1.0
  Ca  Ca4  1  0.741  0.741  0.107  1.0
  Ca  Ca5  1  0.259  0.000  0.107  1.0
  Ca  Ca6  1  0.000  0.259  0.393  1.0
  Ca  Ca7  1  0.741  0.741  0.393  1.0
  Ca  Ca8  1  0.259  0.000  0.393  1.0
  Ca  Ca9  1  0.000  0.741  0.607  1.0
  Ca  Ca10  1  0.259  0.259  0.607  1.0
  Ca  Ca11  1  0.741  1.000  0.607  1.0
  Ca  Ca12  1  0.667  0.333  1.000  1.0
  Ca  Ca13  1  0.333  0.667  1.000  1.0
  Ca  Ca14  1  0.333  0.667  0.500  1.0
  Ca  Ca15  1  0.667  0.333  0.500  1.0
  Ca  Ca16  1  0.333  0.667  0.750  1.0
  Ca  Ca17  1  0.667  0.333  0.750  1.0
  Ca  Ca18  1  0.667  0.333  0.250  1.0
  Ca  Ca19  1  0.333  0.667  0.250  1.0
  Si  Si20  1  0.000  0.285  0.750  1.0
  Si  Si21  1  0.715  0.715  0.750  1.0
  Si  Si22  1  0.285  1.000  0.750  1.0
  Si  Si23  1  1.000  0.715  0.250  1.0
  Si  Si24  1  0.285  0.285  0.250  1.0
  Si  Si25  1  0.715  0.000  0.250  1.0
  Pt  Pt26  1  0.000  0.000  0.750  1.0
  Pt  Pt27  1  0.000  0.000  0.250  1.0
  Pt  Pt28  1  0.000  0.408  0.902  1.0
  Pt  Pt29  1  0.592  0.592  0.902  1.0
  Pt  Pt30  1  0.408  1.000  0.902  1.0
  Pt  Pt31  1  1.000  0.592  0.098  1.0
  Pt  Pt32  1  0.408  0.408  0.098  1.0
  Pt  Pt33  1  0.592  1.000  0.098  1.0
  Pt  Pt34  1  1.000  0.592  0.402  1.0
  Pt  Pt35  1  0.408  0.408  0.402  1.0
  Pt  Pt36  1  0.592  0.000  0.402  1.0
  Pt  Pt37  1  1.000  0.408  0.598  1.0
  Pt  Pt38  1  0.592  0.592  0.598  1.0
  Pt  Pt39  1  0.408  0.000  0.598  1.0
[/CIF]
.