The 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 single-bond geometry to two equivalent Mg(3), two equivalent Mg(4), and one C(1) atom. In the second Mg site, Mg(2) is bonded in a distorted bent 120 degrees geometry to one Mg(3), one Mg(4), two equivalent La(1), and two equivalent C(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 La(1) atoms. In the fourth Mg site, Mg(4) is bonded in a 12-coordinate geometry to two equivalent Mg(2), two equivalent Mg(3), four equivalent Mg(1), and four equivalent La(1) atoms. La(1) is bonded in a 8-coordinate geometry to two equivalent Mg(3), four equivalent Mg(2), four equivalent Mg(4), and two equivalent C(1) atoms. C(1) is bonded in a 8-coordinate geometry to two equivalent Mg(1), four equivalent Mg(2), and two equivalent La(1) atoms. is represented by the CIF card [CIF]
data_LaMg6C
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.409
_cell_length_b   7.409
_cell_length_c   4.624
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   135.725
_symmetry_Int_Tables_number   1
_cell_volume   177.216
_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  0.803  0.197  0.500  1.0
  Mg  Mg1  1  0.300  0.204  0.500  1.0
  Mg  Mg2  1  0.796  0.700  0.500  1.0
  Mg  Mg3  1  0.184  0.343  0.000  1.0
  Mg  Mg4  1  0.657  0.816  0.000  1.0
  Mg  Mg5  1  0.640  0.360  0.000  1.0
  Mg  Mg6  1  0.205  0.795  0.000  1.0
  C  C7  1  0.414  0.586  0.500  1.0
[/CIF]
.
The 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 single-bond geometry to two equivalent Mg(3), two equivalent Mg(4), and one C(1) atom. In the second Mg site, Mg(2) is bonded in a distorted bent 120 degrees geometry to one Mg(3), one Mg(4), two equivalent La(1), and two equivalent C(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 La(1) atoms. In the fourth Mg site, Mg(4) is bonded in a 12-coordinate geometry to two equivalent Mg(2), two equivalent Mg(3), four equivalent Mg(1), and four equivalent La(1) atoms. La(1) is bonded in a 8-coordinate geometry to two equivalent Mg(3), four equivalent Mg(2), four equivalent Mg(4), and two equivalent C(1) atoms. C(1) is bonded in a 8-coordinate geometry to two equivalent Mg(1), four equivalent Mg(2), and two equivalent La(1) atoms. is represented by the CIF card [CIF]
data_LaMg6C
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.409
_cell_length_b   7.409
_cell_length_c   4.624
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   135.725
_symmetry_Int_Tables_number   1
_cell_volume   177.216
_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  0.803  0.197  0.500  1.0
  Mg  Mg1  1  0.300  0.204  0.500  1.0
  Mg  Mg2  1  0.796  0.700  0.500  1.0
  Mg  Mg3  1  0.184  0.343  0.000  1.0
  Mg  Mg4  1  0.657  0.816  0.000  1.0
  Mg  Mg5  1  0.640  0.360  0.000  1.0
  Mg  Mg6  1  0.205  0.795  0.000  1.0
  C  C7  1  0.414  0.586  0.500  1.0
[/CIF]
.