The structure described by Mg6CeNi crystallizes in the orthorhombic Amm2 space group. There are four inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a distorted single-bond geometry to two equivalent Mg(2), two equivalent Mg(4), and one Ni(1) atom. In the second Mg site, Mg(2) is bonded in a 10-coordinate geometry to one Mg(3), one Mg(4), two equivalent Mg(1), two equivalent Mg(2), two equivalent Ce(1), and two equivalent Ni(1) atoms. In the third Mg site, Mg(3) is bonded in a 6-coordinate geometry to two equivalent Mg(2), two equivalent Mg(4), and two equivalent Ni(1) atoms. In the fourth Mg site, Mg(4) is bonded in a 10-coordinate geometry to two equivalent Mg(2), two equivalent Mg(3), four equivalent Mg(1), and two equivalent Ce(1) atoms. Ce(1) is bonded in a 2-coordinate geometry to two equivalent Mg(4), four equivalent Mg(2), and two equivalent Ni(1) atoms. Ni(1) is bonded in a 10-coordinate geometry to two equivalent Mg(1), two equivalent Mg(3), four equivalent Mg(2), and two equivalent Ce(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_CeMg6Ni
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.035
_cell_length_b   5.761
_cell_length_c   4.876
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   114.172
_symmetry_Int_Tables_number   1
_cell_volume   180.310
_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  0.109  0.805  0.250  1.0
  Mg  Mg1  1  0.617  0.309  0.250  1.0
  Mg  Mg2  1  0.617  0.807  0.250  1.0
  Mg  Mg3  1  0.345  0.177  0.750  1.0
  Mg  Mg4  1  0.345  0.668  0.750  1.0
  Mg  Mg5  1  0.932  0.216  0.750  1.0
  Mg  Mg6  1  0.792  0.646  0.750  1.0
  Ni  Ni7  1  0.243  0.372  0.250  1.0
[/CIF]
.
The structure described by Mg6CeNi crystallizes in the orthorhombic Amm2 space group. There are four inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a distorted single-bond geometry to two equivalent Mg(2), two equivalent Mg(4), and one Ni(1) atom. In the second Mg site, Mg(2) is bonded in a 10-coordinate geometry to one Mg(3), one Mg(4), two equivalent Mg(1), two equivalent Mg(2), two equivalent Ce(1), and two equivalent Ni(1) atoms. In the third Mg site, Mg(3) is bonded in a 6-coordinate geometry to two equivalent Mg(2), two equivalent Mg(4), and two equivalent Ni(1) atoms. In the fourth Mg site, Mg(4) is bonded in a 10-coordinate geometry to two equivalent Mg(2), two equivalent Mg(3), four equivalent Mg(1), and two equivalent Ce(1) atoms. Ce(1) is bonded in a 2-coordinate geometry to two equivalent Mg(4), four equivalent Mg(2), and two equivalent Ni(1) atoms. Ni(1) is bonded in a 10-coordinate geometry to two equivalent Mg(1), two equivalent Mg(3), four equivalent Mg(2), and two equivalent Ce(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_CeMg6Ni
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.035
_cell_length_b   5.761
_cell_length_c   4.876
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   114.172
_symmetry_Int_Tables_number   1
_cell_volume   180.310
_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  0.109  0.805  0.250  1.0
  Mg  Mg1  1  0.617  0.309  0.250  1.0
  Mg  Mg2  1  0.617  0.807  0.250  1.0
  Mg  Mg3  1  0.345  0.177  0.750  1.0
  Mg  Mg4  1  0.345  0.668  0.750  1.0
  Mg  Mg5  1  0.932  0.216  0.750  1.0
  Mg  Mg6  1  0.792  0.646  0.750  1.0
  Ni  Ni7  1  0.243  0.372  0.250  1.0
[/CIF]
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