The material structure described by Mg14LaAl crystallizes in the orthorhombic Amm2 space group. There are seven inequivalent Mg sites. In the first Mg site, Mg(1) is bonded to two equivalent Mg(2), two equivalent Mg(6), four equivalent Mg(4), and four equivalent Mg(5) atoms to form MgMg12 cuboctahedra that share corners with four equivalent La(1)Mg10Al2 cuboctahedra, corners with six equivalent Mg(1)Mg12 cuboctahedra, edges with two equivalent Mg(2)Mg12 cuboctahedra, edges with four equivalent Mg(4)Mg12 cuboctahedra, edges with eight equivalent Mg(5)LaMg10Al cuboctahedra, faces with two equivalent Mg(2)Mg12 cuboctahedra, faces with four equivalent Mg(5)LaMg10Al cuboctahedra, faces with four equivalent Mg(4)Mg12 cuboctahedra, and faces with six equivalent Mg(7)LaMg11 cuboctahedra. In the second Mg site, Mg(2) is bonded to two equivalent Mg(1), two equivalent Mg(7), four equivalent Mg(4), and four equivalent Mg(5) atoms to form MgMg12 cuboctahedra that share corners with six equivalent Mg(2)Mg12 cuboctahedra, edges with two equivalent Mg(1)Mg12 cuboctahedra, edges with four equivalent Mg(7)LaMg11 cuboctahedra, edges with four equivalent Mg(4)Mg12 cuboctahedra, edges with eight equivalent Mg(5)LaMg10Al cuboctahedra, faces with two equivalent Mg(7)LaMg11 cuboctahedra, faces with two equivalent Mg(1)Mg12 cuboctahedra, faces with two equivalent La(1)Mg10Al2 cuboctahedra, faces with four equivalent Mg(5)LaMg10Al cuboctahedra, and faces with four equivalent Mg(4)Mg12 cuboctahedra. In the third Mg site, Mg(3) is bonded in a 11-coordinate geometry to two equivalent Mg(3), two equivalent Mg(5), two equivalent Mg(6), two equivalent Mg(7), two equivalent La(1), and one Al(1) atom. In the fourth Mg site, Mg(4) is bonded to two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(4), two equivalent Mg(5), two equivalent Mg(6), and two equivalent Mg(7) atoms to form MgMg12 cuboctahedra that share corners with four equivalent La(1)Mg10Al2 cuboctahedra, corners with six equivalent Mg(4)Mg12 cuboctahedra, edges with two equivalent Mg(1)Mg12 cuboctahedra, edges with two equivalent Mg(2)Mg12 cuboctahedra, edges with two equivalent Mg(4)Mg12 cuboctahedra, edges with four equivalent Mg(5)LaMg10Al cuboctahedra, edges with four equivalent Mg(7)LaMg11 cuboctahedra, faces with two equivalent Mg(7)LaMg11 cuboctahedra, faces with two equivalent Mg(1)Mg12 cuboctahedra, faces with two equivalent Mg(2)Mg12 cuboctahedra, faces with two equivalent Mg(4)Mg12 cuboctahedra, and faces with eight equivalent Mg(5)LaMg10Al cuboctahedra. In the fifth Mg site, Mg(5) is bonded to one Mg(1), one Mg(2), one Mg(3), one Mg(4), two equivalent Mg(5), two equivalent Mg(6), two equivalent Mg(7), one La(1), and one Al(1) atom to form distorted MgLaMg10Al cuboctahedra that share corners with four equivalent Mg(7)LaMg11 cuboctahedra, corners with ten equivalent Mg(5)LaMg10Al cuboctahedra, edges with two equivalent Mg(5)LaMg10Al cuboctahedra, edges with two equivalent Mg(7)LaMg11 cuboctahedra, edges with two equivalent Mg(1)Mg12 cuboctahedra, edges with two equivalent Mg(2)Mg12 cuboctahedra, edges with two equivalent Mg(4)Mg12 cuboctahedra, edges with two equivalent La(1)Mg10Al2 cuboctahedra,  a faceface with one Mg(1)Mg12 cuboctahedra,  a faceface with one Mg(2)Mg12 cuboctahedra,  a faceface with one La(1)Mg10Al2 cuboctahedra, faces with two equivalent Mg(7)LaMg11 cuboctahedra, faces with four equivalent Mg(5)LaMg10Al cuboctahedra, and faces with four equivalent Mg(4)Mg12 cuboctahedra. In the sixth Mg site, Mg(6) is bonded in a 12-coordinate geometry to one Mg(1), two equivalent Mg(3), two equivalent Mg(4), two equivalent Mg(7), four equivalent Mg(5), and one Al(1) atom. In the seventh Mg site, Mg(7) is bonded to one Mg(2), two equivalent Mg(3), two equivalent Mg(4), two equivalent Mg(6), four equivalent Mg(5), and one La(1) atom to form distorted MgLaMg11 cuboctahedra that share corners with six equivalent Mg(7)LaMg11 cuboctahedra, corners with eight equivalent Mg(5)LaMg10Al cuboctahedra, edges with two equivalent Mg(2)Mg12 cuboctahedra, edges with two equivalent La(1)Mg10Al2 cuboctahedra, edges with four equivalent Mg(5)LaMg10Al cuboctahedra, edges with four equivalent Mg(4)Mg12 cuboctahedra,  a faceface with one Mg(2)Mg12 cuboctahedra,  a faceface with one La(1)Mg10Al2 cuboctahedra, faces with two equivalent Mg(7)LaMg11 cuboctahedra, faces with two equivalent Mg(4)Mg12 cuboctahedra, faces with three equivalent Mg(1)Mg12 cuboctahedra, and faces with four equivalent Mg(5)LaMg10Al cuboctahedra. La(1) is bonded to two equivalent Mg(7), four equivalent Mg(3), four equivalent Mg(5), and two equivalent Al(1) atoms to form LaMg10Al2 cuboctahedra that share corners with four equivalent Mg(1)Mg12 cuboctahedra, corners with six equivalent La(1)Mg10Al2 cuboctahedra, corners with eight equivalent Mg(4)Mg12 cuboctahedra, edges with four equivalent Mg(7)LaMg11 cuboctahedra, edges with eight equivalent Mg(5)LaMg10Al cuboctahedra, faces with two equivalent Mg(7)LaMg11 cuboctahedra, faces with two equivalent Mg(2)Mg12 cuboctahedra, and faces with four equivalent Mg(5)LaMg10Al cuboctahedra. Al(1) is bonded in a 10-coordinate geometry to two equivalent Mg(3), two equivalent Mg(6), four equivalent Mg(5), and two equivalent La(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_LaMg14Al
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.567
_cell_length_b   6.429
_cell_length_c   10.338
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   119.306
_symmetry_Int_Tables_number   1
_cell_volume   380.644
_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
  La  La0  1  0.155  0.827  0.125  1.0
  Mg  Mg1  1  0.163  0.332  0.625  1.0
  Mg  Mg2  1  0.167  0.833  0.625  1.0
  Mg  Mg3  1  0.652  0.334  0.125  1.0
  Mg  Mg4  1  0.667  0.330  0.625  1.0
  Mg  Mg5  1  0.652  0.818  0.125  1.0
  Mg  Mg6  1  0.667  0.837  0.625  1.0
  Mg  Mg7  1  0.337  0.174  0.381  1.0
  Mg  Mg8  1  0.337  0.174  0.869  1.0
  Mg  Mg9  1  0.337  0.663  0.381  1.0
  Mg  Mg10  1  0.337  0.663  0.869  1.0
  Mg  Mg11  1  0.842  0.171  0.361  1.0
  Mg  Mg12  1  0.842  0.171  0.889  1.0
  Mg  Mg13  1  0.827  0.664  0.386  1.0
  Mg  Mg14  1  0.827  0.664  0.864  1.0
  Al  Al15  1  0.194  0.347  0.125  1.0
[/CIF]
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The material structure described by Mg14LaAl crystallizes in the orthorhombic Amm2 space group. There are seven inequivalent Mg sites. In the first Mg site, Mg(1) is bonded to two equivalent Mg(2), two equivalent Mg(6), four equivalent Mg(4), and four equivalent Mg(5) atoms to form MgMg12 cuboctahedra that share corners with four equivalent La(1)Mg10Al2 cuboctahedra, corners with six equivalent Mg(1)Mg12 cuboctahedra, edges with two equivalent Mg(2)Mg12 cuboctahedra, edges with four equivalent Mg(4)Mg12 cuboctahedra, edges with eight equivalent Mg(5)LaMg10Al cuboctahedra, faces with two equivalent Mg(2)Mg12 cuboctahedra, faces with four equivalent Mg(5)LaMg10Al cuboctahedra, faces with four equivalent Mg(4)Mg12 cuboctahedra, and faces with six equivalent Mg(7)LaMg11 cuboctahedra. In the second Mg site, Mg(2) is bonded to two equivalent Mg(1), two equivalent Mg(7), four equivalent Mg(4), and four equivalent Mg(5) atoms to form MgMg12 cuboctahedra that share corners with six equivalent Mg(2)Mg12 cuboctahedra, edges with two equivalent Mg(1)Mg12 cuboctahedra, edges with four equivalent Mg(7)LaMg11 cuboctahedra, edges with four equivalent Mg(4)Mg12 cuboctahedra, edges with eight equivalent Mg(5)LaMg10Al cuboctahedra, faces with two equivalent Mg(7)LaMg11 cuboctahedra, faces with two equivalent Mg(1)Mg12 cuboctahedra, faces with two equivalent La(1)Mg10Al2 cuboctahedra, faces with four equivalent Mg(5)LaMg10Al cuboctahedra, and faces with four equivalent Mg(4)Mg12 cuboctahedra. In the third Mg site, Mg(3) is bonded in a 11-coordinate geometry to two equivalent Mg(3), two equivalent Mg(5), two equivalent Mg(6), two equivalent Mg(7), two equivalent La(1), and one Al(1) atom. In the fourth Mg site, Mg(4) is bonded to two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(4), two equivalent Mg(5), two equivalent Mg(6), and two equivalent Mg(7) atoms to form MgMg12 cuboctahedra that share corners with four equivalent La(1)Mg10Al2 cuboctahedra, corners with six equivalent Mg(4)Mg12 cuboctahedra, edges with two equivalent Mg(1)Mg12 cuboctahedra, edges with two equivalent Mg(2)Mg12 cuboctahedra, edges with two equivalent Mg(4)Mg12 cuboctahedra, edges with four equivalent Mg(5)LaMg10Al cuboctahedra, edges with four equivalent Mg(7)LaMg11 cuboctahedra, faces with two equivalent Mg(7)LaMg11 cuboctahedra, faces with two equivalent Mg(1)Mg12 cuboctahedra, faces with two equivalent Mg(2)Mg12 cuboctahedra, faces with two equivalent Mg(4)Mg12 cuboctahedra, and faces with eight equivalent Mg(5)LaMg10Al cuboctahedra. In the fifth Mg site, Mg(5) is bonded to one Mg(1), one Mg(2), one Mg(3), one Mg(4), two equivalent Mg(5), two equivalent Mg(6), two equivalent Mg(7), one La(1), and one Al(1) atom to form distorted MgLaMg10Al cuboctahedra that share corners with four equivalent Mg(7)LaMg11 cuboctahedra, corners with ten equivalent Mg(5)LaMg10Al cuboctahedra, edges with two equivalent Mg(5)LaMg10Al cuboctahedra, edges with two equivalent Mg(7)LaMg11 cuboctahedra, edges with two equivalent Mg(1)Mg12 cuboctahedra, edges with two equivalent Mg(2)Mg12 cuboctahedra, edges with two equivalent Mg(4)Mg12 cuboctahedra, edges with two equivalent La(1)Mg10Al2 cuboctahedra,  a faceface with one Mg(1)Mg12 cuboctahedra,  a faceface with one Mg(2)Mg12 cuboctahedra,  a faceface with one La(1)Mg10Al2 cuboctahedra, faces with two equivalent Mg(7)LaMg11 cuboctahedra, faces with four equivalent Mg(5)LaMg10Al cuboctahedra, and faces with four equivalent Mg(4)Mg12 cuboctahedra. In the sixth Mg site, Mg(6) is bonded in a 12-coordinate geometry to one Mg(1), two equivalent Mg(3), two equivalent Mg(4), two equivalent Mg(7), four equivalent Mg(5), and one Al(1) atom. In the seventh Mg site, Mg(7) is bonded to one Mg(2), two equivalent Mg(3), two equivalent Mg(4), two equivalent Mg(6), four equivalent Mg(5), and one La(1) atom to form distorted MgLaMg11 cuboctahedra that share corners with six equivalent Mg(7)LaMg11 cuboctahedra, corners with eight equivalent Mg(5)LaMg10Al cuboctahedra, edges with two equivalent Mg(2)Mg12 cuboctahedra, edges with two equivalent La(1)Mg10Al2 cuboctahedra, edges with four equivalent Mg(5)LaMg10Al cuboctahedra, edges with four equivalent Mg(4)Mg12 cuboctahedra,  a faceface with one Mg(2)Mg12 cuboctahedra,  a faceface with one La(1)Mg10Al2 cuboctahedra, faces with two equivalent Mg(7)LaMg11 cuboctahedra, faces with two equivalent Mg(4)Mg12 cuboctahedra, faces with three equivalent Mg(1)Mg12 cuboctahedra, and faces with four equivalent Mg(5)LaMg10Al cuboctahedra. La(1) is bonded to two equivalent Mg(7), four equivalent Mg(3), four equivalent Mg(5), and two equivalent Al(1) atoms to form LaMg10Al2 cuboctahedra that share corners with four equivalent Mg(1)Mg12 cuboctahedra, corners with six equivalent La(1)Mg10Al2 cuboctahedra, corners with eight equivalent Mg(4)Mg12 cuboctahedra, edges with four equivalent Mg(7)LaMg11 cuboctahedra, edges with eight equivalent Mg(5)LaMg10Al cuboctahedra, faces with two equivalent Mg(7)LaMg11 cuboctahedra, faces with two equivalent Mg(2)Mg12 cuboctahedra, and faces with four equivalent Mg(5)LaMg10Al cuboctahedra. Al(1) is bonded in a 10-coordinate geometry to two equivalent Mg(3), two equivalent Mg(6), four equivalent Mg(5), and two equivalent La(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_LaMg14Al
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.567
_cell_length_b   6.429
_cell_length_c   10.338
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   119.306
_symmetry_Int_Tables_number   1
_cell_volume   380.644
_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
  La  La0  1  0.155  0.827  0.125  1.0
  Mg  Mg1  1  0.163  0.332  0.625  1.0
  Mg  Mg2  1  0.167  0.833  0.625  1.0
  Mg  Mg3  1  0.652  0.334  0.125  1.0
  Mg  Mg4  1  0.667  0.330  0.625  1.0
  Mg  Mg5  1  0.652  0.818  0.125  1.0
  Mg  Mg6  1  0.667  0.837  0.625  1.0
  Mg  Mg7  1  0.337  0.174  0.381  1.0
  Mg  Mg8  1  0.337  0.174  0.869  1.0
  Mg  Mg9  1  0.337  0.663  0.381  1.0
  Mg  Mg10  1  0.337  0.663  0.869  1.0
  Mg  Mg11  1  0.842  0.171  0.361  1.0
  Mg  Mg12  1  0.842  0.171  0.889  1.0
  Mg  Mg13  1  0.827  0.664  0.386  1.0
  Mg  Mg14  1  0.827  0.664  0.864  1.0
  Al  Al15  1  0.194  0.347  0.125  1.0
[/CIF]
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