The compound described by MgCeRh crystallizes in the hexagonal P-6 space group. Mg(1) is bonded in a 4-coordinate geometry to one Rh(1), one Rh(2), and two equivalent Rh(3) atoms. Ce(1) is bonded in a 5-coordinate geometry to one Rh(3), two equivalent Rh(1), and two equivalent Rh(2) atoms. There are three inequivalent Rh sites. In the first Rh site, Rh(1) is bonded in a 9-coordinate geometry to three equivalent Mg(1) and six equivalent Ce(1) atoms. In the second Rh site, Rh(2) is bonded in a 9-coordinate geometry to three equivalent Mg(1) and six equivalent Ce(1) atoms. In the third Rh site, Rh(3) is bonded in a 9-coordinate geometry to six equivalent Mg(1) and three equivalent Ce(1) atoms. is represented by the CIF card [CIF]
data_CeMgRh
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.404
_cell_length_b   7.404
_cell_length_c   4.119
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.001
_symmetry_Int_Tables_number   1
_cell_volume   195.576
_cell_formula_units_Z   3
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  0.584  0.001  0.000  1.0
  Ce  Ce1  1  0.999  0.583  0.000  1.0
  Ce  Ce2  1  0.417  0.416  0.000  1.0
  Mg  Mg3  1  0.235  0.000  0.500  1.0
  Mg  Mg4  1  1.000  0.235  0.500  1.0
  Mg  Mg5  1  0.765  0.765  0.500  1.0
  Rh  Rh6  1  0.333  0.667  0.500  1.0
  Rh  Rh7  1  0.667  0.333  0.500  1.0
  Rh  Rh8  1  0.000  1.000  0.000  1.0
[/CIF]
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The compound described by MgCeRh crystallizes in the hexagonal P-6 space group. Mg(1) is bonded in a 4-coordinate geometry to one Rh(1), one Rh(2), and two equivalent Rh(3) atoms. Ce(1) is bonded in a 5-coordinate geometry to one Rh(3), two equivalent Rh(1), and two equivalent Rh(2) atoms. There are three inequivalent Rh sites. In the first Rh site, Rh(1) is bonded in a 9-coordinate geometry to three equivalent Mg(1) and six equivalent Ce(1) atoms. In the second Rh site, Rh(2) is bonded in a 9-coordinate geometry to three equivalent Mg(1) and six equivalent Ce(1) atoms. In the third Rh site, Rh(3) is bonded in a 9-coordinate geometry to six equivalent Mg(1) and three equivalent Ce(1) atoms. is represented by the CIF card [CIF]
data_CeMgRh
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.404
_cell_length_b   7.404
_cell_length_c   4.119
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.001
_symmetry_Int_Tables_number   1
_cell_volume   195.576
_cell_formula_units_Z   3
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  0.584  0.001  0.000  1.0
  Ce  Ce1  1  0.999  0.583  0.000  1.0
  Ce  Ce2  1  0.417  0.416  0.000  1.0
  Mg  Mg3  1  0.235  0.000  0.500  1.0
  Mg  Mg4  1  1.000  0.235  0.500  1.0
  Mg  Mg5  1  0.765  0.765  0.500  1.0
  Rh  Rh6  1  0.333  0.667  0.500  1.0
  Rh  Rh7  1  0.667  0.333  0.500  1.0
  Rh  Rh8  1  0.000  1.000  0.000  1.0
[/CIF]
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