The structure described by Mg2Zn crystallizes in the orthorhombic Cmcm space group. Mg(1) is bonded to seven equivalent Mg(1) and five equivalent Zn(1) atoms to form distorted MgMg7Zn5 cuboctahedra that share corners with nine equivalent Mg(1)Mg7Zn5 cuboctahedra, corners with nine equivalent Zn(1)Mg10Zn2 cuboctahedra, edges with four equivalent Zn(1)Mg10Zn2 cuboctahedra, edges with fourteen equivalent Mg(1)Mg7Zn5 cuboctahedra, faces with seven equivalent Zn(1)Mg10Zn2 cuboctahedra, and faces with thirteen equivalent Mg(1)Mg7Zn5 cuboctahedra. Zn(1) is bonded to ten equivalent Mg(1) and two equivalent Zn(1) atoms to form distorted ZnMg10Zn2 cuboctahedra that share corners with eighteen equivalent Mg(1)Mg7Zn5 cuboctahedra, edges with eight equivalent Mg(1)Mg7Zn5 cuboctahedra, edges with ten equivalent Zn(1)Mg10Zn2 cuboctahedra, faces with six equivalent Zn(1)Mg10Zn2 cuboctahedra, and faces with fourteen equivalent Mg(1)Mg7Zn5 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Mg2Zn
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.376
_cell_length_b   5.376
_cell_length_c   4.739
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   124.305
_symmetry_Int_Tables_number   1
_cell_volume   113.133
_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  0.041  0.351  0.750  1.0
  Mg  Mg1  1  0.351  0.041  0.750  1.0
  Mg  Mg2  1  0.649  0.959  0.250  1.0
  Mg  Mg3  1  0.959  0.649  0.250  1.0
  Zn  Zn4  1  0.675  0.675  0.750  1.0
  Zn  Zn5  1  0.325  0.325  0.250  1.0
[/CIF]
.
The structure described by Mg2Zn crystallizes in the orthorhombic Cmcm space group. Mg(1) is bonded to seven equivalent Mg(1) and five equivalent Zn(1) atoms to form distorted MgMg7Zn5 cuboctahedra that share corners with nine equivalent Mg(1)Mg7Zn5 cuboctahedra, corners with nine equivalent Zn(1)Mg10Zn2 cuboctahedra, edges with four equivalent Zn(1)Mg10Zn2 cuboctahedra, edges with fourteen equivalent Mg(1)Mg7Zn5 cuboctahedra, faces with seven equivalent Zn(1)Mg10Zn2 cuboctahedra, and faces with thirteen equivalent Mg(1)Mg7Zn5 cuboctahedra. Zn(1) is bonded to ten equivalent Mg(1) and two equivalent Zn(1) atoms to form distorted ZnMg10Zn2 cuboctahedra that share corners with eighteen equivalent Mg(1)Mg7Zn5 cuboctahedra, edges with eight equivalent Mg(1)Mg7Zn5 cuboctahedra, edges with ten equivalent Zn(1)Mg10Zn2 cuboctahedra, faces with six equivalent Zn(1)Mg10Zn2 cuboctahedra, and faces with fourteen equivalent Mg(1)Mg7Zn5 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Mg2Zn
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.376
_cell_length_b   5.376
_cell_length_c   4.739
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   124.305
_symmetry_Int_Tables_number   1
_cell_volume   113.133
_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  0.041  0.351  0.750  1.0
  Mg  Mg1  1  0.351  0.041  0.750  1.0
  Mg  Mg2  1  0.649  0.959  0.250  1.0
  Mg  Mg3  1  0.959  0.649  0.250  1.0
  Zn  Zn4  1  0.675  0.675  0.750  1.0
  Zn  Zn5  1  0.325  0.325  0.250  1.0
[/CIF]
.