The material described by MgLa crystallizes in the monoclinic C2 space group. There are two inequivalent Mg sites. In the first Mg site, Mg(1) is bonded to two equivalent La(2) and six equivalent La(1) atoms to form distorted MgLa8 cuboctahedra that share corners with two equivalent Mg(1)La8 cuboctahedra, corners with four equivalent La(2)La4Mg8 cuboctahedra, corners with ten equivalent La(1)La5Mg7 cuboctahedra, edges with two equivalent La(1)La5Mg7 cuboctahedra, edges with four equivalent La(2)La4Mg8 cuboctahedra, edges with six equivalent Mg(1)La8 cuboctahedra, and faces with four equivalent La(1)La5Mg7 cuboctahedra. In the second Mg site, Mg(2) is bonded in a 7-coordinate geometry to three equivalent La(2) and four equivalent La(1) atoms. There are two inequivalent La sites. In the first La site, La(1) is bonded to three equivalent Mg(1), four equivalent Mg(2), two equivalent La(2), and three equivalent La(1) atoms to form distorted LaLa5Mg7 cuboctahedra that share corners with five equivalent Mg(1)La8 cuboctahedra, corners with twelve equivalent La(1)La5Mg7 cuboctahedra,  an edgeedge with one Mg(1)La8 cuboctahedra, edges with four equivalent La(2)La4Mg8 cuboctahedra, edges with six equivalent La(1)La5Mg7 cuboctahedra, faces with two equivalent Mg(1)La8 cuboctahedra, faces with four equivalent La(2)La4Mg8 cuboctahedra, and faces with four equivalent La(1)La5Mg7 cuboctahedra. In the second La site, La(2) is bonded to two equivalent Mg(1), six equivalent Mg(2), and four equivalent La(1) atoms to form distorted LaLa4Mg8 cuboctahedra that share corners with four equivalent Mg(1)La8 cuboctahedra, corners with six equivalent La(2)La4Mg8 cuboctahedra, edges with four equivalent Mg(1)La8 cuboctahedra, edges with six equivalent La(2)La4Mg8 cuboctahedra, edges with eight equivalent La(1)La5Mg7 cuboctahedra, and faces with eight equivalent La(1)La5Mg7 cuboctahedra. is represented by the CIF card [CIF]
data_LaMg
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.075
_cell_length_b   6.075
_cell_length_c   6.749
_cell_angle_alpha   63.055
_cell_angle_beta   63.055
_cell_angle_gamma   59.943
_symmetry_Int_Tables_number   1
_cell_volume   183.730
_cell_formula_units_Z   3
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
  La  La0  1  0.997  0.319  0.008  1.0
  La  La1  1  0.681  0.003  0.992  1.0
  La  La2  1  0.485  0.515  0.500  1.0
  Mg  Mg3  1  0.335  0.665  0.000  1.0
  Mg  Mg4  1  0.169  0.168  0.501  1.0
  Mg  Mg5  1  0.832  0.831  0.499  1.0
[/CIF]
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The material described by MgLa crystallizes in the monoclinic C2 space group. There are two inequivalent Mg sites. In the first Mg site, Mg(1) is bonded to two equivalent La(2) and six equivalent La(1) atoms to form distorted MgLa8 cuboctahedra that share corners with two equivalent Mg(1)La8 cuboctahedra, corners with four equivalent La(2)La4Mg8 cuboctahedra, corners with ten equivalent La(1)La5Mg7 cuboctahedra, edges with two equivalent La(1)La5Mg7 cuboctahedra, edges with four equivalent La(2)La4Mg8 cuboctahedra, edges with six equivalent Mg(1)La8 cuboctahedra, and faces with four equivalent La(1)La5Mg7 cuboctahedra. In the second Mg site, Mg(2) is bonded in a 7-coordinate geometry to three equivalent La(2) and four equivalent La(1) atoms. There are two inequivalent La sites. In the first La site, La(1) is bonded to three equivalent Mg(1), four equivalent Mg(2), two equivalent La(2), and three equivalent La(1) atoms to form distorted LaLa5Mg7 cuboctahedra that share corners with five equivalent Mg(1)La8 cuboctahedra, corners with twelve equivalent La(1)La5Mg7 cuboctahedra,  an edgeedge with one Mg(1)La8 cuboctahedra, edges with four equivalent La(2)La4Mg8 cuboctahedra, edges with six equivalent La(1)La5Mg7 cuboctahedra, faces with two equivalent Mg(1)La8 cuboctahedra, faces with four equivalent La(2)La4Mg8 cuboctahedra, and faces with four equivalent La(1)La5Mg7 cuboctahedra. In the second La site, La(2) is bonded to two equivalent Mg(1), six equivalent Mg(2), and four equivalent La(1) atoms to form distorted LaLa4Mg8 cuboctahedra that share corners with four equivalent Mg(1)La8 cuboctahedra, corners with six equivalent La(2)La4Mg8 cuboctahedra, edges with four equivalent Mg(1)La8 cuboctahedra, edges with six equivalent La(2)La4Mg8 cuboctahedra, edges with eight equivalent La(1)La5Mg7 cuboctahedra, and faces with eight equivalent La(1)La5Mg7 cuboctahedra. is represented by the CIF card [CIF]
data_LaMg
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.075
_cell_length_b   6.075
_cell_length_c   6.749
_cell_angle_alpha   63.055
_cell_angle_beta   63.055
_cell_angle_gamma   59.943
_symmetry_Int_Tables_number   1
_cell_volume   183.730
_cell_formula_units_Z   3
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
  La  La0  1  0.997  0.319  0.008  1.0
  La  La1  1  0.681  0.003  0.992  1.0
  La  La2  1  0.485  0.515  0.500  1.0
  Mg  Mg3  1  0.335  0.665  0.000  1.0
  Mg  Mg4  1  0.169  0.168  0.501  1.0
  Mg  Mg5  1  0.832  0.831  0.499  1.0
[/CIF]
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