The crystal structure described by Pt3Co crystallizes in the trigonal R-3m space group. Co(1) is bonded to six equivalent Pt(1) atoms to form distorted CoPt6 cuboctahedra that share corners with six equivalent Pt(2)Pt12 cuboctahedra, edges with six equivalent Co(1)Pt6 cuboctahedra, and edges with six equivalent Pt(2)Pt12 cuboctahedra. There are two inequivalent Pt sites. In the first Pt site, Pt(1) is bonded to three equivalent Co(1) and three equivalent Pt(2) atoms to form distorted PtCo3Pt3 cuboctahedra that share corners with six equivalent Pt(1)Co3Pt3 cuboctahedra, corners with six equivalent Pt(2)Pt12 cuboctahedra, edges with six equivalent Pt(2)Pt12 cuboctahedra, and edges with twelve equivalent Pt(1)Co3Pt3 cuboctahedra. In the second Pt site, Pt(2) is bonded to six equivalent Pt(1) and six equivalent Pt(2) atoms to form PtPt12 cuboctahedra that share corners with six equivalent Co(1)Pt6 cuboctahedra, corners with six equivalent Pt(2)Pt12 cuboctahedra, corners with twelve equivalent Pt(1)Co3Pt3 cuboctahedra, edges with six equivalent Co(1)Pt6 cuboctahedra, edges with six equivalent Pt(2)Pt12 cuboctahedra, edges with twelve equivalent Pt(1)Co3Pt3 cuboctahedra, and faces with six equivalent Pt(2)Pt12 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_CoPt3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.151
_cell_length_b   9.151
_cell_length_c   9.151
_cell_angle_alpha   17.326
_cell_angle_beta   17.326
_cell_angle_gamma   17.326
_symmetry_Int_Tables_number   1
_cell_volume   59.300
_cell_formula_units_Z   1
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
  Co  Co0  1  0.000  0.000  0.000  1.0
  Pt  Pt1  1  0.256  0.256  0.256  1.0
  Pt  Pt2  1  0.500  0.500  0.500  1.0
  Pt  Pt3  1  0.744  0.744  0.744  1.0
[/CIF]
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The crystal structure described by Pt3Co crystallizes in the trigonal R-3m space group. Co(1) is bonded to six equivalent Pt(1) atoms to form distorted CoPt6 cuboctahedra that share corners with six equivalent Pt(2)Pt12 cuboctahedra, edges with six equivalent Co(1)Pt6 cuboctahedra, and edges with six equivalent Pt(2)Pt12 cuboctahedra. There are two inequivalent Pt sites. In the first Pt site, Pt(1) is bonded to three equivalent Co(1) and three equivalent Pt(2) atoms to form distorted PtCo3Pt3 cuboctahedra that share corners with six equivalent Pt(1)Co3Pt3 cuboctahedra, corners with six equivalent Pt(2)Pt12 cuboctahedra, edges with six equivalent Pt(2)Pt12 cuboctahedra, and edges with twelve equivalent Pt(1)Co3Pt3 cuboctahedra. In the second Pt site, Pt(2) is bonded to six equivalent Pt(1) and six equivalent Pt(2) atoms to form PtPt12 cuboctahedra that share corners with six equivalent Co(1)Pt6 cuboctahedra, corners with six equivalent Pt(2)Pt12 cuboctahedra, corners with twelve equivalent Pt(1)Co3Pt3 cuboctahedra, edges with six equivalent Co(1)Pt6 cuboctahedra, edges with six equivalent Pt(2)Pt12 cuboctahedra, edges with twelve equivalent Pt(1)Co3Pt3 cuboctahedra, and faces with six equivalent Pt(2)Pt12 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_CoPt3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.151
_cell_length_b   9.151
_cell_length_c   9.151
_cell_angle_alpha   17.326
_cell_angle_beta   17.326
_cell_angle_gamma   17.326
_symmetry_Int_Tables_number   1
_cell_volume   59.300
_cell_formula_units_Z   1
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
  Co  Co0  1  0.000  0.000  0.000  1.0
  Pt  Pt1  1  0.256  0.256  0.256  1.0
  Pt  Pt2  1  0.500  0.500  0.500  1.0
  Pt  Pt3  1  0.744  0.744  0.744  1.0
[/CIF]
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