The structure described by Ce(Mn2Fe)4 crystallizes in the tetragonal I4/mmm space group. Ce(1) is bonded in a 20-coordinate geometry to eight equivalent Mn(1), eight equivalent Mn(2), and four equivalent Fe(1) atoms. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to two equivalent Ce(1), two equivalent Mn(1), four equivalent Mn(2), and four equivalent Fe(1) atoms to form a mixture of distorted corner, edge, and face-sharing MnCe2Mn6Fe4 cuboctahedra. In the second Mn site, Mn(2) is bonded in a 12-coordinate geometry to two equivalent Ce(1), two equivalent Mn(2), four equivalent Mn(1), and four equivalent Fe(1) atoms. Fe(1) is bonded in a 10-coordinate geometry to one Ce(1), four equivalent Mn(1), four equivalent Mn(2), and one Fe(1) atom. is represented by the CIF file [CIF]
data_Ce(Mn2Fe)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.774
_cell_length_b   6.365
_cell_length_c   6.365
_cell_angle_alpha   98.085
_cell_angle_beta   112.025
_cell_angle_gamma   67.975
_symmetry_Int_Tables_number   1
_cell_volume   166.197
_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
  Ce  Ce0  1  0.000  0.000  0.000  1.0
  Mn  Mn1  1  0.500  0.000  0.500  1.0
  Mn  Mn2  1  0.000  0.000  0.500  1.0
  Mn  Mn3  1  0.500  0.500  0.000  1.0
  Mn  Mn4  1  0.000  0.500  0.000  1.0
  Mn  Mn5  1  0.733  0.767  0.233  1.0
  Mn  Mn6  1  0.267  0.233  0.767  1.0
  Mn  Mn7  1  0.500  0.767  0.767  1.0
  Mn  Mn8  1  0.500  0.233  0.233  1.0
  Fe  Fe9  1  0.638  0.362  0.638  1.0
  Fe  Fe10  1  0.362  0.638  0.362  1.0
  Fe  Fe11  1  0.000  0.362  0.362  1.0
  Fe  Fe12  1  0.000  0.638  0.638  1.0
[/CIF]
.
The structure described by Ce(Mn2Fe)4 crystallizes in the tetragonal I4/mmm space group. Ce(1) is bonded in a 20-coordinate geometry to eight equivalent Mn(1), eight equivalent Mn(2), and four equivalent Fe(1) atoms. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to two equivalent Ce(1), two equivalent Mn(1), four equivalent Mn(2), and four equivalent Fe(1) atoms to form a mixture of distorted corner, edge, and face-sharing MnCe2Mn6Fe4 cuboctahedra. In the second Mn site, Mn(2) is bonded in a 12-coordinate geometry to two equivalent Ce(1), two equivalent Mn(2), four equivalent Mn(1), and four equivalent Fe(1) atoms. Fe(1) is bonded in a 10-coordinate geometry to one Ce(1), four equivalent Mn(1), four equivalent Mn(2), and one Fe(1) atom. is represented by the CIF file [CIF]
data_Ce(Mn2Fe)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.774
_cell_length_b   6.365
_cell_length_c   6.365
_cell_angle_alpha   98.085
_cell_angle_beta   112.025
_cell_angle_gamma   67.975
_symmetry_Int_Tables_number   1
_cell_volume   166.197
_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
  Ce  Ce0  1  0.000  0.000  0.000  1.0
  Mn  Mn1  1  0.500  0.000  0.500  1.0
  Mn  Mn2  1  0.000  0.000  0.500  1.0
  Mn  Mn3  1  0.500  0.500  0.000  1.0
  Mn  Mn4  1  0.000  0.500  0.000  1.0
  Mn  Mn5  1  0.733  0.767  0.233  1.0
  Mn  Mn6  1  0.267  0.233  0.767  1.0
  Mn  Mn7  1  0.500  0.767  0.767  1.0
  Mn  Mn8  1  0.500  0.233  0.233  1.0
  Fe  Fe9  1  0.638  0.362  0.638  1.0
  Fe  Fe10  1  0.362  0.638  0.362  1.0
  Fe  Fe11  1  0.000  0.362  0.362  1.0
  Fe  Fe12  1  0.000  0.638  0.638  1.0
[/CIF]
.