The material structure described by NaW6NCl18 crystallizes in the hexagonal P6_3/m space group. Na(1) is bonded to six equivalent Cl(1) atoms to form NaCl6 octahedra that share corners with six equivalent W(1)NCl5 octahedra. The corner-sharing octahedral tilt angles are 48°. W(1) is bonded to one N(1), one Cl(1), one Cl(2), one Cl(4), and two equivalent Cl(3) atoms to form distorted WNCl5 octahedra that share  a cornercorner with one Na(1)Cl6 octahedra, corners with two equivalent W(1)NCl5 octahedra, edges with two equivalent W(1)NCl5 octahedra, and  a faceface with one W(1)NCl5 octahedra. The corner-sharing octahedral tilt angles range from 41-48°. N(1) is bonded in a 6-coordinate geometry to six equivalent W(1) atoms. There are four inequivalent Cl sites. In the first Cl site, Cl(1) is bonded in a bent 120 degrees geometry to one Na(1) and one W(1) atom. In the second Cl site, Cl(2) is bonded in a distorted L-shaped geometry to two equivalent W(1) atoms. In the third Cl site, Cl(3) is bonded in a 2-coordinate geometry to two equivalent W(1) atoms. In the fourth Cl site, Cl(4) is bonded in a distorted L-shaped geometry to two equivalent W(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_NaW6NCl18
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.028
_cell_length_b   9.028
_cell_length_c   18.015
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   1271.546
_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
  Na  Na0  1  0.000  0.000  0.500  1.0
  Na  Na1  1  0.000  0.000  0.000  1.0
  W  W2  1  0.183  0.485  0.836  1.0
  W  W3  1  0.698  0.183  0.336  1.0
  W  W4  1  0.302  0.817  0.664  1.0
  W  W5  1  0.515  0.698  0.836  1.0
  W  W6  1  0.817  0.515  0.336  1.0
  W  W7  1  0.485  0.302  0.164  1.0
  W  W8  1  0.515  0.698  0.664  1.0
  W  W9  1  0.817  0.515  0.164  1.0
  W  W10  1  0.485  0.302  0.336  1.0
  W  W11  1  0.183  0.485  0.664  1.0
  W  W12  1  0.302  0.817  0.836  1.0
  W  W13  1  0.698  0.183  0.164  1.0
  N  N14  1  0.333  0.667  0.750  1.0
  N  N15  1  0.667  0.333  0.250  1.0
  Cl  Cl16  1  0.771  0.740  0.601  1.0
  Cl  Cl17  1  0.524  0.946  0.250  1.0
  Cl  Cl18  1  0.946  0.423  0.750  1.0
  Cl  Cl19  1  0.030  0.771  0.399  1.0
  Cl  Cl20  1  0.970  0.229  0.899  1.0
  Cl  Cl21  1  0.771  0.740  0.899  1.0
  Cl  Cl22  1  0.423  0.476  0.250  1.0
  Cl  Cl23  1  0.371  0.481  0.928  1.0
  Cl  Cl24  1  0.481  0.110  0.428  1.0
  Cl  Cl25  1  0.890  0.371  0.428  1.0
  Cl  Cl26  1  0.577  0.524  0.750  1.0
  Cl  Cl27  1  0.198  0.281  0.750  1.0
  Cl  Cl28  1  0.260  0.030  0.899  1.0
  Cl  Cl29  1  0.030  0.771  0.101  1.0
  Cl  Cl30  1  0.229  0.260  0.101  1.0
  Cl  Cl31  1  0.629  0.519  0.428  1.0
  Cl  Cl32  1  0.110  0.629  0.928  1.0
  Cl  Cl33  1  0.740  0.970  0.101  1.0
  Cl  Cl34  1  0.740  0.970  0.399  1.0
  Cl  Cl35  1  0.802  0.719  0.250  1.0
  Cl  Cl36  1  0.970  0.229  0.601  1.0
  Cl  Cl37  1  0.519  0.890  0.572  1.0
  Cl  Cl38  1  0.229  0.260  0.399  1.0
  Cl  Cl39  1  0.476  0.054  0.750  1.0
  Cl  Cl40  1  0.260  0.030  0.601  1.0
  Cl  Cl41  1  0.110  0.629  0.572  1.0
  Cl  Cl42  1  0.481  0.110  0.072  1.0
  Cl  Cl43  1  0.917  0.198  0.250  1.0
  Cl  Cl44  1  0.629  0.519  0.072  1.0
  Cl  Cl45  1  0.371  0.481  0.572  1.0
  Cl  Cl46  1  0.083  0.802  0.750  1.0
  Cl  Cl47  1  0.054  0.577  0.250  1.0
  Cl  Cl48  1  0.281  0.083  0.250  1.0
  Cl  Cl49  1  0.890  0.371  0.072  1.0
  Cl  Cl50  1  0.519  0.890  0.928  1.0
  Cl  Cl51  1  0.719  0.917  0.750  1.0
[/CIF]
.
The material structure described by NaW6NCl18 crystallizes in the hexagonal P6_3/m space group. Na(1) is bonded to six equivalent Cl(1) atoms to form NaCl6 octahedra that share corners with six equivalent W(1)NCl5 octahedra. The corner-sharing octahedral tilt angles are 48°. W(1) is bonded to one N(1), one Cl(1), one Cl(2), one Cl(4), and two equivalent Cl(3) atoms to form distorted WNCl5 octahedra that share  a cornercorner with one Na(1)Cl6 octahedra, corners with two equivalent W(1)NCl5 octahedra, edges with two equivalent W(1)NCl5 octahedra, and  a faceface with one W(1)NCl5 octahedra. The corner-sharing octahedral tilt angles range from 41-48°. N(1) is bonded in a 6-coordinate geometry to six equivalent W(1) atoms. There are four inequivalent Cl sites. In the first Cl site, Cl(1) is bonded in a bent 120 degrees geometry to one Na(1) and one W(1) atom. In the second Cl site, Cl(2) is bonded in a distorted L-shaped geometry to two equivalent W(1) atoms. In the third Cl site, Cl(3) is bonded in a 2-coordinate geometry to two equivalent W(1) atoms. In the fourth Cl site, Cl(4) is bonded in a distorted L-shaped geometry to two equivalent W(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_NaW6NCl18
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.028
_cell_length_b   9.028
_cell_length_c   18.015
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   1271.546
_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
  Na  Na0  1  0.000  0.000  0.500  1.0
  Na  Na1  1  0.000  0.000  0.000  1.0
  W  W2  1  0.183  0.485  0.836  1.0
  W  W3  1  0.698  0.183  0.336  1.0
  W  W4  1  0.302  0.817  0.664  1.0
  W  W5  1  0.515  0.698  0.836  1.0
  W  W6  1  0.817  0.515  0.336  1.0
  W  W7  1  0.485  0.302  0.164  1.0
  W  W8  1  0.515  0.698  0.664  1.0
  W  W9  1  0.817  0.515  0.164  1.0
  W  W10  1  0.485  0.302  0.336  1.0
  W  W11  1  0.183  0.485  0.664  1.0
  W  W12  1  0.302  0.817  0.836  1.0
  W  W13  1  0.698  0.183  0.164  1.0
  N  N14  1  0.333  0.667  0.750  1.0
  N  N15  1  0.667  0.333  0.250  1.0
  Cl  Cl16  1  0.771  0.740  0.601  1.0
  Cl  Cl17  1  0.524  0.946  0.250  1.0
  Cl  Cl18  1  0.946  0.423  0.750  1.0
  Cl  Cl19  1  0.030  0.771  0.399  1.0
  Cl  Cl20  1  0.970  0.229  0.899  1.0
  Cl  Cl21  1  0.771  0.740  0.899  1.0
  Cl  Cl22  1  0.423  0.476  0.250  1.0
  Cl  Cl23  1  0.371  0.481  0.928  1.0
  Cl  Cl24  1  0.481  0.110  0.428  1.0
  Cl  Cl25  1  0.890  0.371  0.428  1.0
  Cl  Cl26  1  0.577  0.524  0.750  1.0
  Cl  Cl27  1  0.198  0.281  0.750  1.0
  Cl  Cl28  1  0.260  0.030  0.899  1.0
  Cl  Cl29  1  0.030  0.771  0.101  1.0
  Cl  Cl30  1  0.229  0.260  0.101  1.0
  Cl  Cl31  1  0.629  0.519  0.428  1.0
  Cl  Cl32  1  0.110  0.629  0.928  1.0
  Cl  Cl33  1  0.740  0.970  0.101  1.0
  Cl  Cl34  1  0.740  0.970  0.399  1.0
  Cl  Cl35  1  0.802  0.719  0.250  1.0
  Cl  Cl36  1  0.970  0.229  0.601  1.0
  Cl  Cl37  1  0.519  0.890  0.572  1.0
  Cl  Cl38  1  0.229  0.260  0.399  1.0
  Cl  Cl39  1  0.476  0.054  0.750  1.0
  Cl  Cl40  1  0.260  0.030  0.601  1.0
  Cl  Cl41  1  0.110  0.629  0.572  1.0
  Cl  Cl42  1  0.481  0.110  0.072  1.0
  Cl  Cl43  1  0.917  0.198  0.250  1.0
  Cl  Cl44  1  0.629  0.519  0.072  1.0
  Cl  Cl45  1  0.371  0.481  0.572  1.0
  Cl  Cl46  1  0.083  0.802  0.750  1.0
  Cl  Cl47  1  0.054  0.577  0.250  1.0
  Cl  Cl48  1  0.281  0.083  0.250  1.0
  Cl  Cl49  1  0.890  0.371  0.072  1.0
  Cl  Cl50  1  0.519  0.890  0.928  1.0
  Cl  Cl51  1  0.719  0.917  0.750  1.0
[/CIF]
.