The crystal structure described by Mg14WC 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(6), two equivalent Mg(7), four equivalent Mg(4), and four equivalent Mg(5) atoms to form distorted MgMg12 cuboctahedra that share corners with four equivalent Mg(1)Mg12 cuboctahedra and corners with two equivalent C(1)Mg4W trigonal bipyramids. In the second Mg site, Mg(2) is bonded in a distorted q6 geometry to two equivalent Mg(7), four equivalent Mg(4), and four equivalent Mg(5) atoms. In the third Mg site, Mg(3) is bonded in a distorted single-bond geometry to two equivalent Mg(6) and one C(1) atom. In the fourth Mg site, Mg(4) is bonded in a 11-coordinate geometry to one Mg(4), two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(5), two equivalent Mg(6), and two equivalent Mg(7) atoms. In the fifth Mg site, Mg(5) is bonded in a distorted single-bond geometry to one Mg(1), one Mg(2), one Mg(4), two equivalent Mg(6), and one W(1) atom. In the sixth Mg site, Mg(6) is bonded in a 10-coordinate geometry to one Mg(1), two equivalent Mg(3), two equivalent Mg(4), four equivalent Mg(5), and one W(1) atom. In the seventh Mg site, Mg(7) is bonded in a single-bond geometry to one Mg(1), one Mg(2), two equivalent Mg(4), and one C(1) atom. W(1) is bonded in a distorted single-bond geometry to two equivalent Mg(6), four equivalent Mg(5), and one C(1) atom. C(1) is bonded to two equivalent Mg(3), two equivalent Mg(7), and one W(1) atom to form CMg4W trigonal bipyramids that share corners with two equivalent Mg(1)Mg12 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Mg14WC
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.239
_cell_length_b   7.811
_cell_length_c   9.142
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   128.759
_symmetry_Int_Tables_number   1
_cell_volume   347.405
_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
  Mg  Mg0  1  0.289  0.395  0.625  1.0
  Mg  Mg1  1  0.197  0.848  0.625  1.0
  Mg  Mg2  1  0.810  0.386  0.125  1.0
  Mg  Mg3  1  0.732  0.340  0.625  1.0
  Mg  Mg4  1  0.810  0.925  0.125  1.0
  Mg  Mg5  1  0.732  0.892  0.625  1.0
  Mg  Mg6  1  0.298  0.107  0.339  1.0
  Mg  Mg7  1  0.298  0.107  0.911  1.0
  Mg  Mg8  1  0.298  0.691  0.339  1.0
  Mg  Mg9  1  0.298  0.691  0.911  1.0
  Mg  Mg10  1  0.884  0.192  0.372  1.0
  Mg  Mg11  1  0.884  0.192  0.878  1.0
  Mg  Mg12  1  0.731  0.616  0.374  1.0
  Mg  Mg13  1  0.731  0.616  0.876  1.0
  W  W14  1  0.309  0.405  0.125  1.0
  C  C15  1  0.698  0.599  0.125  1.0
[/CIF]
.
The crystal structure described by Mg14WC 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(6), two equivalent Mg(7), four equivalent Mg(4), and four equivalent Mg(5) atoms to form distorted MgMg12 cuboctahedra that share corners with four equivalent Mg(1)Mg12 cuboctahedra and corners with two equivalent C(1)Mg4W trigonal bipyramids. In the second Mg site, Mg(2) is bonded in a distorted q6 geometry to two equivalent Mg(7), four equivalent Mg(4), and four equivalent Mg(5) atoms. In the third Mg site, Mg(3) is bonded in a distorted single-bond geometry to two equivalent Mg(6) and one C(1) atom. In the fourth Mg site, Mg(4) is bonded in a 11-coordinate geometry to one Mg(4), two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(5), two equivalent Mg(6), and two equivalent Mg(7) atoms. In the fifth Mg site, Mg(5) is bonded in a distorted single-bond geometry to one Mg(1), one Mg(2), one Mg(4), two equivalent Mg(6), and one W(1) atom. In the sixth Mg site, Mg(6) is bonded in a 10-coordinate geometry to one Mg(1), two equivalent Mg(3), two equivalent Mg(4), four equivalent Mg(5), and one W(1) atom. In the seventh Mg site, Mg(7) is bonded in a single-bond geometry to one Mg(1), one Mg(2), two equivalent Mg(4), and one C(1) atom. W(1) is bonded in a distorted single-bond geometry to two equivalent Mg(6), four equivalent Mg(5), and one C(1) atom. C(1) is bonded to two equivalent Mg(3), two equivalent Mg(7), and one W(1) atom to form CMg4W trigonal bipyramids that share corners with two equivalent Mg(1)Mg12 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Mg14WC
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.239
_cell_length_b   7.811
_cell_length_c   9.142
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   128.759
_symmetry_Int_Tables_number   1
_cell_volume   347.405
_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
  Mg  Mg0  1  0.289  0.395  0.625  1.0
  Mg  Mg1  1  0.197  0.848  0.625  1.0
  Mg  Mg2  1  0.810  0.386  0.125  1.0
  Mg  Mg3  1  0.732  0.340  0.625  1.0
  Mg  Mg4  1  0.810  0.925  0.125  1.0
  Mg  Mg5  1  0.732  0.892  0.625  1.0
  Mg  Mg6  1  0.298  0.107  0.339  1.0
  Mg  Mg7  1  0.298  0.107  0.911  1.0
  Mg  Mg8  1  0.298  0.691  0.339  1.0
  Mg  Mg9  1  0.298  0.691  0.911  1.0
  Mg  Mg10  1  0.884  0.192  0.372  1.0
  Mg  Mg11  1  0.884  0.192  0.878  1.0
  Mg  Mg12  1  0.731  0.616  0.374  1.0
  Mg  Mg13  1  0.731  0.616  0.876  1.0
  W  W14  1  0.309  0.405  0.125  1.0
  C  C15  1  0.698  0.599  0.125  1.0
[/CIF]
.