The crystal structure described by MgNi2 is Cubic Laves structured and crystallizes in the cubic Fd-3m space group. Mg(1) is bonded in a 12-coordinate geometry to twelve equivalent Ni(1) atoms. Ni(1) is bonded to six equivalent Mg(1) and six equivalent Ni(1) atoms to form a mixture of face, corner, and edge-sharing NiMg6Ni6 cuboctahedra. is represented by the CIF card [CIF]
data_MgNi2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.762
_cell_length_b   4.762
_cell_length_c   4.762
_cell_angle_alpha   119.998
_cell_angle_beta   60.002
_cell_angle_gamma   119.992
_symmetry_Int_Tables_number   1
_cell_volume   76.368
_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
  Mg  Mg0  1  0.875  0.458  0.375  1.0
  Mg  Mg1  1  0.125  0.208  0.625  1.0
  Ni  Ni2  1  0.500  0.333  1.000  1.0
  Ni  Ni3  1  0.500  0.833  0.000  1.0
  Ni  Ni4  1  0.500  0.833  0.500  1.0
  Ni  Ni5  1  0.000  0.833  0.000  1.0
[/CIF]
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The crystal structure described by MgNi2 is Cubic Laves structured and crystallizes in the cubic Fd-3m space group. Mg(1) is bonded in a 12-coordinate geometry to twelve equivalent Ni(1) atoms. Ni(1) is bonded to six equivalent Mg(1) and six equivalent Ni(1) atoms to form a mixture of face, corner, and edge-sharing NiMg6Ni6 cuboctahedra. is represented by the CIF card [CIF]
data_MgNi2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.762
_cell_length_b   4.762
_cell_length_c   4.762
_cell_angle_alpha   119.998
_cell_angle_beta   60.002
_cell_angle_gamma   119.992
_symmetry_Int_Tables_number   1
_cell_volume   76.368
_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
  Mg  Mg0  1  0.875  0.458  0.375  1.0
  Mg  Mg1  1  0.125  0.208  0.625  1.0
  Ni  Ni2  1  0.500  0.333  1.000  1.0
  Ni  Ni3  1  0.500  0.833  0.000  1.0
  Ni  Ni4  1  0.500  0.833  0.500  1.0
  Ni  Ni5  1  0.000  0.833  0.000  1.0
[/CIF]
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