The compound described by MgEr2Ni2 crystallizes in the tetragonal P4/mbm space group. Mg(1) is bonded in a distorted square co-planar geometry to four equivalent Ni(1) atoms. Er(1) is bonded in a 6-coordinate geometry to six equivalent Ni(1) atoms. Ni(1) is bonded in a 9-coordinate geometry to two equivalent Mg(1), six equivalent Er(1), and one Ni(1) atom. is represented by the CIF card [CIF]
data_Er2MgNi2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.257
_cell_length_b   7.257
_cell_length_c   3.665
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   192.992
_cell_formula_units_Z   2
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
  Er  Er0  1  0.671  0.171  0.500  1.0
  Er  Er1  1  0.329  0.829  0.500  1.0
  Er  Er2  1  0.171  0.329  0.500  1.0
  Er  Er3  1  0.829  0.671  0.500  1.0
  Mg  Mg4  1  0.000  0.000  0.000  1.0
  Mg  Mg5  1  0.500  0.500  0.000  1.0
  Ni  Ni6  1  0.120  0.620  0.000  1.0
  Ni  Ni7  1  0.880  0.380  0.000  1.0
  Ni  Ni8  1  0.620  0.880  0.000  1.0
  Ni  Ni9  1  0.380  0.120  0.000  1.0
[/CIF]
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The compound described by MgEr2Ni2 crystallizes in the tetragonal P4/mbm space group. Mg(1) is bonded in a distorted square co-planar geometry to four equivalent Ni(1) atoms. Er(1) is bonded in a 6-coordinate geometry to six equivalent Ni(1) atoms. Ni(1) is bonded in a 9-coordinate geometry to two equivalent Mg(1), six equivalent Er(1), and one Ni(1) atom. is represented by the CIF card [CIF]
data_Er2MgNi2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.257
_cell_length_b   7.257
_cell_length_c   3.665
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   192.992
_cell_formula_units_Z   2
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
  Er  Er0  1  0.671  0.171  0.500  1.0
  Er  Er1  1  0.329  0.829  0.500  1.0
  Er  Er2  1  0.171  0.329  0.500  1.0
  Er  Er3  1  0.829  0.671  0.500  1.0
  Mg  Mg4  1  0.000  0.000  0.000  1.0
  Mg  Mg5  1  0.500  0.500  0.000  1.0
  Ni  Ni6  1  0.120  0.620  0.000  1.0
  Ni  Ni7  1  0.880  0.380  0.000  1.0
  Ni  Ni8  1  0.620  0.880  0.000  1.0
  Ni  Ni9  1  0.380  0.120  0.000  1.0
[/CIF]
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