The material structure described by W9C4 crystallizes in the trigonal R32 space group. There are three inequivalent W sites. In the first W site, W(1) is bonded in a 3-coordinate geometry to one C(1), one C(2), and one C(3) atom. In the second W site, W(2) is bonded in a distorted bent 120 degrees geometry to one C(1) and one C(2) atom. In the third W site, W(3) is bonded in a 3-coordinate geometry to one C(1), one C(2), and one C(4) atom. There are four inequivalent C sites. In the first C site, C(1) is bonded to two equivalent W(1), two equivalent W(2), and two equivalent W(3) atoms to form a mixture of corner and edge-sharing CW6 octahedra. The corner-sharing octahedral tilt angles range from 48-52°. In the second C site, C(2) is bonded to two equivalent W(1), two equivalent W(2), and two equivalent W(3) atoms to form a mixture of corner and edge-sharing CW6 octahedra. The corner-sharing octahedral tilt angles range from 48-52°. In the third C site, C(3) is bonded to six equivalent W(1) atoms to form a mixture of corner and edge-sharing CW6 octahedra. The corner-sharing octahedral tilt angles are 49°. In the fourth C site, C(4) is bonded to six equivalent W(3) atoms to form a mixture of corner and edge-sharing CW6 octahedra. The corner-sharing octahedral tilt angles are 49°. is represented by the CIF card [CIF]
data_W9C4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.077
_cell_length_b   7.077
_cell_length_c   7.077
_cell_angle_alpha   79.368
_cell_angle_beta   79.368
_cell_angle_gamma   79.368
_symmetry_Int_Tables_number   1
_cell_volume   338.192
_cell_formula_units_Z   2
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
  W  W0  1  0.137  0.805  0.803  1.0
  W  W1  1  0.144  0.143  0.464  1.0
  W  W2  1  0.143  0.464  0.144  1.0
  W  W3  1  0.806  0.473  0.475  1.0
  W  W4  1  0.805  0.803  0.137  1.0
  W  W5  1  0.863  0.197  0.195  1.0
  W  W6  1  0.803  0.137  0.805  1.0
  W  W7  1  0.464  0.144  0.143  1.0
  W  W8  1  0.856  0.536  0.857  1.0
  W  W9  1  0.473  0.475  0.806  1.0
  W  W10  1  0.857  0.856  0.536  1.0
  W  W11  1  0.536  0.857  0.856  1.0
  W  W12  1  0.475  0.806  0.473  1.0
  W  W13  1  0.527  0.194  0.525  1.0
  W  W14  1  0.525  0.527  0.194  1.0
  W  W15  1  0.194  0.525  0.527  1.0
  W  W16  1  0.195  0.863  0.197  1.0
  W  W17  1  0.197  0.195  0.863  1.0
  C  C18  1  0.166  0.500  0.834  1.0
  C  C19  1  0.834  0.166  0.500  1.0
  C  C20  1  0.000  0.668  0.332  1.0
  C  C21  1  0.500  0.834  0.166  1.0
  C  C22  1  0.000  0.000  0.000  1.0
  C  C23  1  0.668  0.332  0.000  1.0
  C  C24  1  0.500  0.500  0.500  1.0
  C  C25  1  0.332  0.000  0.668  1.0
[/CIF]
.
The material structure described by W9C4 crystallizes in the trigonal R32 space group. There are three inequivalent W sites. In the first W site, W(1) is bonded in a 3-coordinate geometry to one C(1), one C(2), and one C(3) atom. In the second W site, W(2) is bonded in a distorted bent 120 degrees geometry to one C(1) and one C(2) atom. In the third W site, W(3) is bonded in a 3-coordinate geometry to one C(1), one C(2), and one C(4) atom. There are four inequivalent C sites. In the first C site, C(1) is bonded to two equivalent W(1), two equivalent W(2), and two equivalent W(3) atoms to form a mixture of corner and edge-sharing CW6 octahedra. The corner-sharing octahedral tilt angles range from 48-52°. In the second C site, C(2) is bonded to two equivalent W(1), two equivalent W(2), and two equivalent W(3) atoms to form a mixture of corner and edge-sharing CW6 octahedra. The corner-sharing octahedral tilt angles range from 48-52°. In the third C site, C(3) is bonded to six equivalent W(1) atoms to form a mixture of corner and edge-sharing CW6 octahedra. The corner-sharing octahedral tilt angles are 49°. In the fourth C site, C(4) is bonded to six equivalent W(3) atoms to form a mixture of corner and edge-sharing CW6 octahedra. The corner-sharing octahedral tilt angles are 49°. is represented by the CIF card [CIF]
data_W9C4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.077
_cell_length_b   7.077
_cell_length_c   7.077
_cell_angle_alpha   79.368
_cell_angle_beta   79.368
_cell_angle_gamma   79.368
_symmetry_Int_Tables_number   1
_cell_volume   338.192
_cell_formula_units_Z   2
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
  W  W0  1  0.137  0.805  0.803  1.0
  W  W1  1  0.144  0.143  0.464  1.0
  W  W2  1  0.143  0.464  0.144  1.0
  W  W3  1  0.806  0.473  0.475  1.0
  W  W4  1  0.805  0.803  0.137  1.0
  W  W5  1  0.863  0.197  0.195  1.0
  W  W6  1  0.803  0.137  0.805  1.0
  W  W7  1  0.464  0.144  0.143  1.0
  W  W8  1  0.856  0.536  0.857  1.0
  W  W9  1  0.473  0.475  0.806  1.0
  W  W10  1  0.857  0.856  0.536  1.0
  W  W11  1  0.536  0.857  0.856  1.0
  W  W12  1  0.475  0.806  0.473  1.0
  W  W13  1  0.527  0.194  0.525  1.0
  W  W14  1  0.525  0.527  0.194  1.0
  W  W15  1  0.194  0.525  0.527  1.0
  W  W16  1  0.195  0.863  0.197  1.0
  W  W17  1  0.197  0.195  0.863  1.0
  C  C18  1  0.166  0.500  0.834  1.0
  C  C19  1  0.834  0.166  0.500  1.0
  C  C20  1  0.000  0.668  0.332  1.0
  C  C21  1  0.500  0.834  0.166  1.0
  C  C22  1  0.000  0.000  0.000  1.0
  C  C23  1  0.668  0.332  0.000  1.0
  C  C24  1  0.500  0.500  0.500  1.0
  C  C25  1  0.332  0.000  0.668  1.0
[/CIF]
.