The compound described by Yb2Fe3Cu is Cubic Laves-derived structured and crystallizes in the trigonal R-3m space group. Yb(1) is bonded in a 12-coordinate geometry to nine equivalent Fe(1) and three equivalent Cu(1) atoms. Fe(1) is bonded to six equivalent Yb(1), four equivalent Fe(1), and two equivalent Cu(1) atoms to form FeYb6Fe4Cu2 cuboctahedra that share corners with four equivalent Cu(1)Yb6Fe6 cuboctahedra, corners with fourteen equivalent Fe(1)Yb6Fe4Cu2 cuboctahedra, edges with six equivalent Fe(1)Yb6Fe4Cu2 cuboctahedra, faces with six equivalent Cu(1)Yb6Fe6 cuboctahedra, and faces with twelve equivalent Fe(1)Yb6Fe4Cu2 cuboctahedra. Cu(1) is bonded to six equivalent Yb(1) and six equivalent Fe(1) atoms to form CuYb6Fe6 cuboctahedra that share corners with six equivalent Cu(1)Yb6Fe6 cuboctahedra, corners with twelve equivalent Fe(1)Yb6Fe4Cu2 cuboctahedra, edges with six equivalent Cu(1)Yb6Fe6 cuboctahedra, and faces with eighteen equivalent Fe(1)Yb6Fe4Cu2 cuboctahedra. is represented by the CIF file [CIF]
data_Yb2Fe3Cu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.226
_cell_length_b   5.226
_cell_length_c   5.226
_cell_angle_alpha   57.342
_cell_angle_beta   57.342
_cell_angle_gamma   57.342
_symmetry_Int_Tables_number   1
_cell_volume   94.756
_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
  Yb  Yb0  1  0.125  0.125  0.125  1.0
  Yb  Yb1  1  0.875  0.875  0.875  1.0
  Fe  Fe2  1  0.500  0.000  0.500  1.0
  Fe  Fe3  1  0.000  0.500  0.500  1.0
  Fe  Fe4  1  0.500  0.500  0.000  1.0
  Cu  Cu5  1  0.500  0.500  0.500  1.0
[/CIF]
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The compound described by Yb2Fe3Cu is Cubic Laves-derived structured and crystallizes in the trigonal R-3m space group. Yb(1) is bonded in a 12-coordinate geometry to nine equivalent Fe(1) and three equivalent Cu(1) atoms. Fe(1) is bonded to six equivalent Yb(1), four equivalent Fe(1), and two equivalent Cu(1) atoms to form FeYb6Fe4Cu2 cuboctahedra that share corners with four equivalent Cu(1)Yb6Fe6 cuboctahedra, corners with fourteen equivalent Fe(1)Yb6Fe4Cu2 cuboctahedra, edges with six equivalent Fe(1)Yb6Fe4Cu2 cuboctahedra, faces with six equivalent Cu(1)Yb6Fe6 cuboctahedra, and faces with twelve equivalent Fe(1)Yb6Fe4Cu2 cuboctahedra. Cu(1) is bonded to six equivalent Yb(1) and six equivalent Fe(1) atoms to form CuYb6Fe6 cuboctahedra that share corners with six equivalent Cu(1)Yb6Fe6 cuboctahedra, corners with twelve equivalent Fe(1)Yb6Fe4Cu2 cuboctahedra, edges with six equivalent Cu(1)Yb6Fe6 cuboctahedra, and faces with eighteen equivalent Fe(1)Yb6Fe4Cu2 cuboctahedra. is represented by the CIF file [CIF]
data_Yb2Fe3Cu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.226
_cell_length_b   5.226
_cell_length_c   5.226
_cell_angle_alpha   57.342
_cell_angle_beta   57.342
_cell_angle_gamma   57.342
_symmetry_Int_Tables_number   1
_cell_volume   94.756
_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
  Yb  Yb0  1  0.125  0.125  0.125  1.0
  Yb  Yb1  1  0.875  0.875  0.875  1.0
  Fe  Fe2  1  0.500  0.000  0.500  1.0
  Fe  Fe3  1  0.000  0.500  0.500  1.0
  Fe  Fe4  1  0.500  0.500  0.000  1.0
  Cu  Cu5  1  0.500  0.500  0.500  1.0
[/CIF]
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