The structure described by Fe3Cu is Tungsten-derived structured and crystallizes in the orthorhombic Cmmm space group. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded in a distorted body-centered cubic geometry to two equivalent Fe(2), four equivalent Fe(1), and two equivalent Cu(1) atoms. In the second Fe site, Fe(2) is bonded in a distorted body-centered cubic geometry to four equivalent Fe(1) and four equivalent Fe(2) atoms. Cu(1) is bonded in a distorted body-centered cubic geometry to four equivalent Fe(1) and four equivalent Cu(1) atoms. is represented by the CIF file [CIF]
data_Fe3Cu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.466
_cell_length_b   2.466
_cell_length_c   8.200
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   108.941
_symmetry_Int_Tables_number   1
_cell_volume   47.146
_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  0.747  1.0
  Fe  Fe1  1  0.000  0.000  0.500  1.0
  Fe  Fe2  1  0.500  0.500  0.253  1.0
  Cu  Cu3  1  0.000  0.000  0.000  1.0
[/CIF]
.
The structure described by Fe3Cu is Tungsten-derived structured and crystallizes in the orthorhombic Cmmm space group. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded in a distorted body-centered cubic geometry to two equivalent Fe(2), four equivalent Fe(1), and two equivalent Cu(1) atoms. In the second Fe site, Fe(2) is bonded in a distorted body-centered cubic geometry to four equivalent Fe(1) and four equivalent Fe(2) atoms. Cu(1) is bonded in a distorted body-centered cubic geometry to four equivalent Fe(1) and four equivalent Cu(1) atoms. is represented by the CIF file [CIF]
data_Fe3Cu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.466
_cell_length_b   2.466
_cell_length_c   8.200
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   108.941
_symmetry_Int_Tables_number   1
_cell_volume   47.146
_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  0.747  1.0
  Fe  Fe1  1  0.000  0.000  0.500  1.0
  Fe  Fe2  1  0.500  0.500  0.253  1.0
  Cu  Cu3  1  0.000  0.000  0.000  1.0
[/CIF]
.