The material described by Mg6LaCu crystallizes in the orthorhombic Amm2 space group. There are four inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a distorted single-bond geometry to two equivalent Mg(2), two equivalent Mg(3), two equivalent Mg(4), one La(1), and one Cu(1) atom. In the second Mg site, Mg(2) is bonded in a 10-coordinate geometry to one Mg(3), one Mg(4), two equivalent Mg(1), two equivalent Mg(2), two equivalent La(1), and two equivalent Cu(1) atoms. In the third Mg site, Mg(3) is bonded in a 10-coordinate geometry to two equivalent Mg(2), two equivalent Mg(4), four equivalent Mg(1), and two equivalent Cu(1) atoms. In the fourth Mg site, Mg(4) is bonded in a 10-coordinate geometry to two equivalent Mg(2), two equivalent Mg(3), four equivalent Mg(1), and two equivalent La(1) atoms. La(1) is bonded in a 10-coordinate geometry to two equivalent Mg(1), two equivalent Mg(4), four equivalent Mg(2), and two equivalent Cu(1) atoms. Cu(1) is bonded in a 10-coordinate geometry to two equivalent Mg(1), two equivalent Mg(3), four equivalent Mg(2), and two equivalent La(1) atoms. is represented by the CIF file [CIF]
data_LaMg6Cu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.954
_cell_length_b   5.985
_cell_length_c   7.122
_cell_angle_alpha   114.848
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   191.633
_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
  Cu  Cu0  1  0.500  0.122  0.243  1.0
  La  La1  1  0.500  0.698  0.396  1.0
  Mg  Mg2  1  0.500  0.686  0.878  1.0
  Mg  Mg3  1  0.500  0.191  0.878  1.0
  Mg  Mg4  1  0.000  0.829  0.151  1.0
  Mg  Mg5  1  1.000  0.322  0.151  1.0
  Mg  Mg6  1  0.000  0.294  0.588  1.0
  Mg  Mg7  1  0.000  0.858  0.715  1.0
[/CIF]
.
The material described by Mg6LaCu crystallizes in the orthorhombic Amm2 space group. There are four inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a distorted single-bond geometry to two equivalent Mg(2), two equivalent Mg(3), two equivalent Mg(4), one La(1), and one Cu(1) atom. In the second Mg site, Mg(2) is bonded in a 10-coordinate geometry to one Mg(3), one Mg(4), two equivalent Mg(1), two equivalent Mg(2), two equivalent La(1), and two equivalent Cu(1) atoms. In the third Mg site, Mg(3) is bonded in a 10-coordinate geometry to two equivalent Mg(2), two equivalent Mg(4), four equivalent Mg(1), and two equivalent Cu(1) atoms. In the fourth Mg site, Mg(4) is bonded in a 10-coordinate geometry to two equivalent Mg(2), two equivalent Mg(3), four equivalent Mg(1), and two equivalent La(1) atoms. La(1) is bonded in a 10-coordinate geometry to two equivalent Mg(1), two equivalent Mg(4), four equivalent Mg(2), and two equivalent Cu(1) atoms. Cu(1) is bonded in a 10-coordinate geometry to two equivalent Mg(1), two equivalent Mg(3), four equivalent Mg(2), and two equivalent La(1) atoms. is represented by the CIF file [CIF]
data_LaMg6Cu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.954
_cell_length_b   5.985
_cell_length_c   7.122
_cell_angle_alpha   114.848
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   191.633
_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
  Cu  Cu0  1  0.500  0.122  0.243  1.0
  La  La1  1  0.500  0.698  0.396  1.0
  Mg  Mg2  1  0.500  0.686  0.878  1.0
  Mg  Mg3  1  0.500  0.191  0.878  1.0
  Mg  Mg4  1  0.000  0.829  0.151  1.0
  Mg  Mg5  1  1.000  0.322  0.151  1.0
  Mg  Mg6  1  0.000  0.294  0.588  1.0
  Mg  Mg7  1  0.000  0.858  0.715  1.0
[/CIF]
.