The material described by Ce2(MnNi)5 crystallizes in the orthorhombic Pmmm space group. There are two inequivalent Ce sites. In the first Ce site, Ce(1) is bonded in a 18-coordinate geometry to two equivalent Mn(1), four equivalent Mn(2), four equivalent Ni(1), and eight equivalent Ni(2) atoms. In the second Ce site, Ce(2) is bonded in a 18-coordinate geometry to two equivalent Mn(2), four equivalent Mn(1), four equivalent Mn(3), and eight equivalent Ni(2) atoms. There are three inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a 9-coordinate geometry to one Ce(1), two equivalent Ce(2), two equivalent Mn(3), and four equivalent Ni(2) atoms. In the second Mn site, Mn(2) is bonded in a 9-coordinate geometry to one Ce(2), two equivalent Ce(1), two equivalent Ni(1), and four equivalent Ni(2) atoms. In the third Mn site, Mn(3) is bonded to four equivalent Ce(2), four equivalent Mn(1), and four equivalent Ni(2) atoms to form distorted MnCe4Mn4Ni4 cuboctahedra that share corners with four equivalent Mn(3)Ce4Mn4Ni4 cuboctahedra, corners with four equivalent Ni(1)Ce4Mn4Ni4 cuboctahedra, corners with eight equivalent Ni(2)Ce4Mn5Ni3 cuboctahedra, edges with two equivalent Mn(3)Ce4Mn4Ni4 cuboctahedra, edges with eight equivalent Ni(2)Ce4Mn5Ni3 cuboctahedra, faces with two equivalent Mn(3)Ce4Mn4Ni4 cuboctahedra, and faces with eight equivalent Ni(2)Ce4Mn5Ni3 cuboctahedra. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded to four equivalent Ce(1), four equivalent Mn(2), and four equivalent Ni(2) atoms to form distorted NiCe4Mn4Ni4 cuboctahedra that share corners with four equivalent Mn(3)Ce4Mn4Ni4 cuboctahedra, corners with four equivalent Ni(1)Ce4Mn4Ni4 cuboctahedra, corners with eight equivalent Ni(2)Ce4Mn5Ni3 cuboctahedra, edges with two equivalent Ni(1)Ce4Mn4Ni4 cuboctahedra, edges with eight equivalent Ni(2)Ce4Mn5Ni3 cuboctahedra, faces with two equivalent Ni(1)Ce4Mn4Ni4 cuboctahedra, and faces with eight equivalent Ni(2)Ce4Mn5Ni3 cuboctahedra. In the second Ni site, Ni(2) is bonded to two equivalent Ce(1), two equivalent Ce(2), one Mn(3), two equivalent Mn(1), two equivalent Mn(2), one Ni(1), and two equivalent Ni(2) atoms to form distorted NiCe4Mn5Ni3 cuboctahedra that share corners with two equivalent Mn(3)Ce4Mn4Ni4 cuboctahedra, corners with two equivalent Ni(1)Ce4Mn4Ni4 cuboctahedra, corners with twelve equivalent Ni(2)Ce4Mn5Ni3 cuboctahedra, edges with two equivalent Mn(3)Ce4Mn4Ni4 cuboctahedra, edges with two equivalent Ni(1)Ce4Mn4Ni4 cuboctahedra, edges with six equivalent Ni(2)Ce4Mn5Ni3 cuboctahedra, faces with two equivalent Mn(3)Ce4Mn4Ni4 cuboctahedra, faces with two equivalent Ni(1)Ce4Mn4Ni4 cuboctahedra, and faces with six equivalent Ni(2)Ce4Mn5Ni3 cuboctahedra. is represented by the CIF card [CIF]
data_Ce2(MnNi)5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.998
_cell_length_b   5.130
_cell_length_c   8.761
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   179.699
_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
  Ce  Ce1  1  0.000  0.500  0.500  1.0
  Mn  Mn2  1  0.000  1.000  0.341  1.0
  Mn  Mn3  1  0.000  0.500  0.833  1.0
  Mn  Mn4  1  0.000  0.500  0.167  1.0
  Mn  Mn5  1  0.000  1.000  0.659  1.0
  Mn  Mn6  1  0.500  1.000  0.500  1.0
  Ni  Ni7  1  0.500  0.500  0.000  1.0
  Ni  Ni8  1  0.500  0.252  0.253  1.0
  Ni  Ni9  1  0.500  0.748  0.747  1.0
  Ni  Ni10  1  0.500  0.748  0.253  1.0
  Ni  Ni11  1  0.500  0.252  0.747  1.0
[/CIF]
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The material described by Ce2(MnNi)5 crystallizes in the orthorhombic Pmmm space group. There are two inequivalent Ce sites. In the first Ce site, Ce(1) is bonded in a 18-coordinate geometry to two equivalent Mn(1), four equivalent Mn(2), four equivalent Ni(1), and eight equivalent Ni(2) atoms. In the second Ce site, Ce(2) is bonded in a 18-coordinate geometry to two equivalent Mn(2), four equivalent Mn(1), four equivalent Mn(3), and eight equivalent Ni(2) atoms. There are three inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a 9-coordinate geometry to one Ce(1), two equivalent Ce(2), two equivalent Mn(3), and four equivalent Ni(2) atoms. In the second Mn site, Mn(2) is bonded in a 9-coordinate geometry to one Ce(2), two equivalent Ce(1), two equivalent Ni(1), and four equivalent Ni(2) atoms. In the third Mn site, Mn(3) is bonded to four equivalent Ce(2), four equivalent Mn(1), and four equivalent Ni(2) atoms to form distorted MnCe4Mn4Ni4 cuboctahedra that share corners with four equivalent Mn(3)Ce4Mn4Ni4 cuboctahedra, corners with four equivalent Ni(1)Ce4Mn4Ni4 cuboctahedra, corners with eight equivalent Ni(2)Ce4Mn5Ni3 cuboctahedra, edges with two equivalent Mn(3)Ce4Mn4Ni4 cuboctahedra, edges with eight equivalent Ni(2)Ce4Mn5Ni3 cuboctahedra, faces with two equivalent Mn(3)Ce4Mn4Ni4 cuboctahedra, and faces with eight equivalent Ni(2)Ce4Mn5Ni3 cuboctahedra. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded to four equivalent Ce(1), four equivalent Mn(2), and four equivalent Ni(2) atoms to form distorted NiCe4Mn4Ni4 cuboctahedra that share corners with four equivalent Mn(3)Ce4Mn4Ni4 cuboctahedra, corners with four equivalent Ni(1)Ce4Mn4Ni4 cuboctahedra, corners with eight equivalent Ni(2)Ce4Mn5Ni3 cuboctahedra, edges with two equivalent Ni(1)Ce4Mn4Ni4 cuboctahedra, edges with eight equivalent Ni(2)Ce4Mn5Ni3 cuboctahedra, faces with two equivalent Ni(1)Ce4Mn4Ni4 cuboctahedra, and faces with eight equivalent Ni(2)Ce4Mn5Ni3 cuboctahedra. In the second Ni site, Ni(2) is bonded to two equivalent Ce(1), two equivalent Ce(2), one Mn(3), two equivalent Mn(1), two equivalent Mn(2), one Ni(1), and two equivalent Ni(2) atoms to form distorted NiCe4Mn5Ni3 cuboctahedra that share corners with two equivalent Mn(3)Ce4Mn4Ni4 cuboctahedra, corners with two equivalent Ni(1)Ce4Mn4Ni4 cuboctahedra, corners with twelve equivalent Ni(2)Ce4Mn5Ni3 cuboctahedra, edges with two equivalent Mn(3)Ce4Mn4Ni4 cuboctahedra, edges with two equivalent Ni(1)Ce4Mn4Ni4 cuboctahedra, edges with six equivalent Ni(2)Ce4Mn5Ni3 cuboctahedra, faces with two equivalent Mn(3)Ce4Mn4Ni4 cuboctahedra, faces with two equivalent Ni(1)Ce4Mn4Ni4 cuboctahedra, and faces with six equivalent Ni(2)Ce4Mn5Ni3 cuboctahedra. is represented by the CIF card [CIF]
data_Ce2(MnNi)5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.998
_cell_length_b   5.130
_cell_length_c   8.761
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   179.699
_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
  Ce  Ce1  1  0.000  0.500  0.500  1.0
  Mn  Mn2  1  0.000  1.000  0.341  1.0
  Mn  Mn3  1  0.000  0.500  0.833  1.0
  Mn  Mn4  1  0.000  0.500  0.167  1.0
  Mn  Mn5  1  0.000  1.000  0.659  1.0
  Mn  Mn6  1  0.500  1.000  0.500  1.0
  Ni  Ni7  1  0.500  0.500  0.000  1.0
  Ni  Ni8  1  0.500  0.252  0.253  1.0
  Ni  Ni9  1  0.500  0.748  0.747  1.0
  Ni  Ni10  1  0.500  0.748  0.253  1.0
  Ni  Ni11  1  0.500  0.252  0.747  1.0
[/CIF]
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