The material structure described by Mg6YNi crystallizes in the orthorhombic Amm2 space group. There are four inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 2-coordinate geometry to one Mg(2) and two equivalent Ni(1) atoms. In the second Mg site, Mg(2) is bonded in a 10-coordinate geometry to two equivalent Mg(1), two equivalent Mg(4), four equivalent Mg(3), and two equivalent Y(1) atoms. In the third Mg site, Mg(3) is bonded in a distorted single-bond geometry to two equivalent Mg(2) and one Ni(1) atom. In the fourth Mg site, Mg(4) is bonded in a 2-coordinate geometry to two equivalent Mg(2) and two equivalent Ni(1) atoms. Y(1) is bonded in a 2-coordinate geometry to two equivalent Mg(2) and two equivalent Ni(1) atoms. Ni(1) is bonded in a 10-coordinate geometry to two equivalent Mg(3), two equivalent Mg(4), four equivalent Mg(1), and two equivalent Y(1) atoms. is represented by the CIF file [CIF]
data_YMg6Ni
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.587
_cell_length_b   6.587
_cell_length_c   4.841
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   124.160
_symmetry_Int_Tables_number   1
_cell_volume   173.810
_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
  Y  Y0  1  0.199  0.801  0.000  1.0
  Mg  Mg1  1  0.180  0.326  0.000  1.0
  Mg  Mg2  1  0.674  0.820  0.000  1.0
  Mg  Mg3  1  0.658  0.342  0.000  1.0
  Mg  Mg4  1  0.315  0.190  0.500  1.0
  Mg  Mg5  1  0.810  0.685  0.500  1.0
  Mg  Mg6  1  0.813  0.187  0.500  1.0
  Ni  Ni7  1  0.351  0.649  0.500  1.0
[/CIF]
.
The material structure described by Mg6YNi crystallizes in the orthorhombic Amm2 space group. There are four inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 2-coordinate geometry to one Mg(2) and two equivalent Ni(1) atoms. In the second Mg site, Mg(2) is bonded in a 10-coordinate geometry to two equivalent Mg(1), two equivalent Mg(4), four equivalent Mg(3), and two equivalent Y(1) atoms. In the third Mg site, Mg(3) is bonded in a distorted single-bond geometry to two equivalent Mg(2) and one Ni(1) atom. In the fourth Mg site, Mg(4) is bonded in a 2-coordinate geometry to two equivalent Mg(2) and two equivalent Ni(1) atoms. Y(1) is bonded in a 2-coordinate geometry to two equivalent Mg(2) and two equivalent Ni(1) atoms. Ni(1) is bonded in a 10-coordinate geometry to two equivalent Mg(3), two equivalent Mg(4), four equivalent Mg(1), and two equivalent Y(1) atoms. is represented by the CIF file [CIF]
data_YMg6Ni
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.587
_cell_length_b   6.587
_cell_length_c   4.841
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   124.160
_symmetry_Int_Tables_number   1
_cell_volume   173.810
_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
  Y  Y0  1  0.199  0.801  0.000  1.0
  Mg  Mg1  1  0.180  0.326  0.000  1.0
  Mg  Mg2  1  0.674  0.820  0.000  1.0
  Mg  Mg3  1  0.658  0.342  0.000  1.0
  Mg  Mg4  1  0.315  0.190  0.500  1.0
  Mg  Mg5  1  0.810  0.685  0.500  1.0
  Mg  Mg6  1  0.813  0.187  0.500  1.0
  Ni  Ni7  1  0.351  0.649  0.500  1.0
[/CIF]
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