The structure described by FePt2Cu is Tetraauricupride-derived structured and crystallizes in the tetragonal P4/mmm space group. Fe(1) is bonded to eight equivalent Pt(1) atoms to form distorted FePt8 cuboctahedra that share corners with eight equivalent Cu(1)Pt8 cuboctahedra, edges with four equivalent Fe(1)Pt8 cuboctahedra, edges with eight equivalent Cu(1)Pt8 cuboctahedra, faces with two equivalent Cu(1)Pt8 cuboctahedra, and faces with four equivalent Fe(1)Pt8 cuboctahedra. Pt(1) is bonded to four equivalent Fe(1) and four equivalent Cu(1) atoms to form a mixture of distorted corner, face, and edge-sharing PtFe4Cu4 cuboctahedra. Cu(1) is bonded to eight equivalent Pt(1) atoms to form distorted CuPt8 cuboctahedra that share corners with eight equivalent Fe(1)Pt8 cuboctahedra, edges with four equivalent Cu(1)Pt8 cuboctahedra, edges with eight equivalent Fe(1)Pt8 cuboctahedra, faces with two equivalent Fe(1)Pt8 cuboctahedra, and faces with four equivalent Cu(1)Pt8 cuboctahedra. is represented by the CIF card [CIF]
data_FeCuPt2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.756
_cell_length_b   2.756
_cell_length_c   7.220
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   54.845
_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
  Fe  Fe0  1  0.500  0.500  0.000  1.0
  Cu  Cu1  1  0.500  0.500  0.500  1.0
  Pt  Pt2  1  0.000  0.000  0.751  1.0
  Pt  Pt3  1  0.000  0.000  0.249  1.0
[/CIF]
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The structure described by FePt2Cu is Tetraauricupride-derived structured and crystallizes in the tetragonal P4/mmm space group. Fe(1) is bonded to eight equivalent Pt(1) atoms to form distorted FePt8 cuboctahedra that share corners with eight equivalent Cu(1)Pt8 cuboctahedra, edges with four equivalent Fe(1)Pt8 cuboctahedra, edges with eight equivalent Cu(1)Pt8 cuboctahedra, faces with two equivalent Cu(1)Pt8 cuboctahedra, and faces with four equivalent Fe(1)Pt8 cuboctahedra. Pt(1) is bonded to four equivalent Fe(1) and four equivalent Cu(1) atoms to form a mixture of distorted corner, face, and edge-sharing PtFe4Cu4 cuboctahedra. Cu(1) is bonded to eight equivalent Pt(1) atoms to form distorted CuPt8 cuboctahedra that share corners with eight equivalent Fe(1)Pt8 cuboctahedra, edges with four equivalent Cu(1)Pt8 cuboctahedra, edges with eight equivalent Fe(1)Pt8 cuboctahedra, faces with two equivalent Fe(1)Pt8 cuboctahedra, and faces with four equivalent Cu(1)Pt8 cuboctahedra. is represented by the CIF card [CIF]
data_FeCuPt2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.756
_cell_length_b   2.756
_cell_length_c   7.220
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   54.845
_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
  Fe  Fe0  1  0.500  0.500  0.000  1.0
  Cu  Cu1  1  0.500  0.500  0.500  1.0
  Pt  Pt2  1  0.000  0.000  0.751  1.0
  Pt  Pt3  1  0.000  0.000  0.249  1.0
[/CIF]
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