The structure described by CaPt2 is Hexagonal Laves structured and crystallizes in the hexagonal P6_3/mmc space group. Ca(1) is bonded in a 12-coordinate geometry to three equivalent Pt(1) and nine equivalent Pt(2) atoms. There are two inequivalent Pt sites. In the first Pt site, Pt(1) is bonded to six equivalent Ca(1) and six equivalent Pt(2) atoms to form a mixture of edge, corner, and face-sharing PtCa6Pt6 cuboctahedra. In the second Pt site, Pt(2) is bonded to six equivalent Ca(1), two equivalent Pt(1), and four equivalent Pt(2) atoms to form a mixture of edge, corner, and face-sharing PtCa6Pt6 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_CaPt2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.407
_cell_length_b   5.407
_cell_length_c   8.914
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   225.655
_cell_formula_units_Z   4
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  0.667  0.333  0.565  1.0
  Ca  Ca1  1  0.333  0.667  0.435  1.0
  Ca  Ca2  1  0.333  0.667  0.065  1.0
  Ca  Ca3  1  0.667  0.333  0.935  1.0
  Pt  Pt4  1  0.000  0.000  0.500  1.0
  Pt  Pt5  1  0.000  0.000  0.000  1.0
  Pt  Pt6  1  0.169  0.338  0.750  1.0
  Pt  Pt7  1  0.169  0.831  0.750  1.0
  Pt  Pt8  1  0.662  0.831  0.750  1.0
  Pt  Pt9  1  0.831  0.662  0.250  1.0
  Pt  Pt10  1  0.831  0.169  0.250  1.0
  Pt  Pt11  1  0.338  0.169  0.250  1.0
[/CIF]
.
The structure described by CaPt2 is Hexagonal Laves structured and crystallizes in the hexagonal P6_3/mmc space group. Ca(1) is bonded in a 12-coordinate geometry to three equivalent Pt(1) and nine equivalent Pt(2) atoms. There are two inequivalent Pt sites. In the first Pt site, Pt(1) is bonded to six equivalent Ca(1) and six equivalent Pt(2) atoms to form a mixture of edge, corner, and face-sharing PtCa6Pt6 cuboctahedra. In the second Pt site, Pt(2) is bonded to six equivalent Ca(1), two equivalent Pt(1), and four equivalent Pt(2) atoms to form a mixture of edge, corner, and face-sharing PtCa6Pt6 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_CaPt2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.407
_cell_length_b   5.407
_cell_length_c   8.914
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   225.655
_cell_formula_units_Z   4
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  0.667  0.333  0.565  1.0
  Ca  Ca1  1  0.333  0.667  0.435  1.0
  Ca  Ca2  1  0.333  0.667  0.065  1.0
  Ca  Ca3  1  0.667  0.333  0.935  1.0
  Pt  Pt4  1  0.000  0.000  0.500  1.0
  Pt  Pt5  1  0.000  0.000  0.000  1.0
  Pt  Pt6  1  0.169  0.338  0.750  1.0
  Pt  Pt7  1  0.169  0.831  0.750  1.0
  Pt  Pt8  1  0.662  0.831  0.750  1.0
  Pt  Pt9  1  0.831  0.662  0.250  1.0
  Pt  Pt10  1  0.831  0.169  0.250  1.0
  Pt  Pt11  1  0.338  0.169  0.250  1.0
[/CIF]
.