The material structure described by Mg6LaC crystallizes in the orthorhombic Amm2 space group. There are four inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 5-coordinate geometry to two equivalent Mg(2), two equivalent Mg(3), and two equivalent Mg(4) atoms. In the second Mg site, Mg(2) is bonded to two equivalent Mg(4), four equivalent Mg(1), four equivalent Mg(3), and two equivalent La(1) atoms to form a mixture of distorted corner and face-sharing MgLa2Mg10 cuboctahedra. In the third Mg site, Mg(3) is bonded in a 9-coordinate geometry to one Mg(3), two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(4), and two equivalent La(1) atoms. In the fourth Mg site, Mg(4) is bonded in a 10-coordinate geometry to two equivalent Mg(2), four equivalent Mg(1), and four equivalent Mg(3) atoms. La(1) is bonded in a bent 120 degrees geometry to two equivalent Mg(2), four equivalent Mg(3), and two equivalent C(1) atoms. C(1) is bonded in a bent 120 degrees geometry to two equivalent La(1) atoms. is represented by the CIF file [CIF]
data_LaMg6C
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.584
_cell_length_b   6.752
_cell_length_c   6.752
_cell_angle_alpha   119.479
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   181.948
_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
  C  C0  1  0.500  0.312  0.688  1.0
  La  La1  1  0.000  0.197  0.803  1.0
  Mg  Mg2  1  1.000  0.663  0.819  1.0
  Mg  Mg3  1  1.000  0.181  0.337  1.0
  Mg  Mg4  1  0.000  0.665  0.335  1.0
  Mg  Mg5  1  0.500  0.803  0.654  1.0
  Mg  Mg6  1  0.500  0.346  0.197  1.0
  Mg  Mg7  1  0.500  0.832  0.168  1.0
[/CIF]
.
The material structure described by Mg6LaC crystallizes in the orthorhombic Amm2 space group. There are four inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 5-coordinate geometry to two equivalent Mg(2), two equivalent Mg(3), and two equivalent Mg(4) atoms. In the second Mg site, Mg(2) is bonded to two equivalent Mg(4), four equivalent Mg(1), four equivalent Mg(3), and two equivalent La(1) atoms to form a mixture of distorted corner and face-sharing MgLa2Mg10 cuboctahedra. In the third Mg site, Mg(3) is bonded in a 9-coordinate geometry to one Mg(3), two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(4), and two equivalent La(1) atoms. In the fourth Mg site, Mg(4) is bonded in a 10-coordinate geometry to two equivalent Mg(2), four equivalent Mg(1), and four equivalent Mg(3) atoms. La(1) is bonded in a bent 120 degrees geometry to two equivalent Mg(2), four equivalent Mg(3), and two equivalent C(1) atoms. C(1) is bonded in a bent 120 degrees geometry to two equivalent La(1) atoms. is represented by the CIF file [CIF]
data_LaMg6C
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.584
_cell_length_b   6.752
_cell_length_c   6.752
_cell_angle_alpha   119.479
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   181.948
_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
  C  C0  1  0.500  0.312  0.688  1.0
  La  La1  1  0.000  0.197  0.803  1.0
  Mg  Mg2  1  1.000  0.663  0.819  1.0
  Mg  Mg3  1  1.000  0.181  0.337  1.0
  Mg  Mg4  1  0.000  0.665  0.335  1.0
  Mg  Mg5  1  0.500  0.803  0.654  1.0
  Mg  Mg6  1  0.500  0.346  0.197  1.0
  Mg  Mg7  1  0.500  0.832  0.168  1.0
[/CIF]
.