The material described by LaW9O28 crystallizes in the hexagonal P6mm space group. La(1) is bonded in a distorted linear geometry to two equivalent O(5) and six equivalent O(4) atoms. There are two inequivalent W sites. In the first W site, W(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form corner-sharing WO6 octahedra. The corner-sharing octahedral tilt angles range from 0-27°. In the second W site, W(2) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(4) atoms to form corner-sharing WO6 octahedra. The corner-sharing octahedral tilt angles range from 1-33°. There are five inequivalent O sites. In the first O site, O(5) is bonded in a linear geometry to two equivalent La(1) atoms. In the second O site, O(1) is bonded in a bent 150 degrees geometry to one W(1) and one W(2) atom. In the third O site, O(2) is bonded in a linear geometry to two equivalent W(1) atoms. In the fourth O site, O(3) is bonded in a linear geometry to two equivalent W(2) atoms. In the fifth O site, O(4) is bonded in a 3-coordinate geometry to one La(1) and two equivalent W(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_LaW9O28
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   13.039
_cell_length_b   13.039
_cell_length_c   3.903
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   574.638
_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  0.000  0.000  0.979  1.0
  W  W1  1  0.000  0.500  1.000  1.0
  W  W2  1  0.168  0.832  0.001  1.0
  W  W3  1  0.168  0.336  0.001  1.0
  W  W4  1  0.500  0.500  1.000  1.0
  W  W5  1  0.500  0.000  1.000  1.0
  W  W6  1  0.664  0.832  0.001  1.0
  W  W7  1  0.832  0.664  0.001  1.0
  W  W8  1  0.832  0.168  0.001  1.0
  W  W9  1  0.336  0.168  0.001  1.0
  O  O10  1  0.881  0.333  1.000  1.0
  O  O11  1  0.881  0.548  1.000  1.0
  O  O12  1  0.000  0.500  0.500  1.0
  O  O13  1  0.119  0.667  1.000  1.0
  O  O14  1  0.119  0.452  1.000  1.0
  O  O15  1  0.167  0.833  0.499  1.0
  O  O16  1  0.167  0.335  0.499  1.0
  O  O17  1  0.333  0.452  1.000  1.0
  O  O18  1  0.333  0.881  1.000  1.0
  O  O19  1  0.452  0.333  1.000  1.0
  O  O20  1  0.452  0.119  1.000  1.0
  O  O21  1  0.500  0.500  0.500  1.0
  O  O22  1  0.500  0.000  0.500  1.0
  O  O23  1  0.548  0.881  1.000  1.0
  O  O24  1  0.548  0.667  1.000  1.0
  O  O25  1  0.665  0.833  0.499  1.0
  O  O26  1  0.667  0.548  1.000  1.0
  O  O27  1  0.667  0.119  1.000  1.0
  O  O28  1  0.790  0.790  0.998  1.0
  O  O29  1  0.790  0.000  0.998  1.0
  O  O30  1  0.833  0.665  0.499  1.0
  O  O31  1  0.833  0.167  0.499  1.0
  O  O32  1  0.000  0.790  0.998  1.0
  O  O33  1  0.000  0.000  0.479  1.0
  O  O34  1  0.000  0.210  0.998  1.0
  O  O35  1  0.210  0.000  0.998  1.0
  O  O36  1  0.210  0.210  0.998  1.0
  O  O37  1  0.335  0.167  0.499  1.0
[/CIF]
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The material described by LaW9O28 crystallizes in the hexagonal P6mm space group. La(1) is bonded in a distorted linear geometry to two equivalent O(5) and six equivalent O(4) atoms. There are two inequivalent W sites. In the first W site, W(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form corner-sharing WO6 octahedra. The corner-sharing octahedral tilt angles range from 0-27°. In the second W site, W(2) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(4) atoms to form corner-sharing WO6 octahedra. The corner-sharing octahedral tilt angles range from 1-33°. There are five inequivalent O sites. In the first O site, O(5) is bonded in a linear geometry to two equivalent La(1) atoms. In the second O site, O(1) is bonded in a bent 150 degrees geometry to one W(1) and one W(2) atom. In the third O site, O(2) is bonded in a linear geometry to two equivalent W(1) atoms. In the fourth O site, O(3) is bonded in a linear geometry to two equivalent W(2) atoms. In the fifth O site, O(4) is bonded in a 3-coordinate geometry to one La(1) and two equivalent W(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_LaW9O28
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   13.039
_cell_length_b   13.039
_cell_length_c   3.903
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   574.638
_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  0.000  0.000  0.979  1.0
  W  W1  1  0.000  0.500  1.000  1.0
  W  W2  1  0.168  0.832  0.001  1.0
  W  W3  1  0.168  0.336  0.001  1.0
  W  W4  1  0.500  0.500  1.000  1.0
  W  W5  1  0.500  0.000  1.000  1.0
  W  W6  1  0.664  0.832  0.001  1.0
  W  W7  1  0.832  0.664  0.001  1.0
  W  W8  1  0.832  0.168  0.001  1.0
  W  W9  1  0.336  0.168  0.001  1.0
  O  O10  1  0.881  0.333  1.000  1.0
  O  O11  1  0.881  0.548  1.000  1.0
  O  O12  1  0.000  0.500  0.500  1.0
  O  O13  1  0.119  0.667  1.000  1.0
  O  O14  1  0.119  0.452  1.000  1.0
  O  O15  1  0.167  0.833  0.499  1.0
  O  O16  1  0.167  0.335  0.499  1.0
  O  O17  1  0.333  0.452  1.000  1.0
  O  O18  1  0.333  0.881  1.000  1.0
  O  O19  1  0.452  0.333  1.000  1.0
  O  O20  1  0.452  0.119  1.000  1.0
  O  O21  1  0.500  0.500  0.500  1.0
  O  O22  1  0.500  0.000  0.500  1.0
  O  O23  1  0.548  0.881  1.000  1.0
  O  O24  1  0.548  0.667  1.000  1.0
  O  O25  1  0.665  0.833  0.499  1.0
  O  O26  1  0.667  0.548  1.000  1.0
  O  O27  1  0.667  0.119  1.000  1.0
  O  O28  1  0.790  0.790  0.998  1.0
  O  O29  1  0.790  0.000  0.998  1.0
  O  O30  1  0.833  0.665  0.499  1.0
  O  O31  1  0.833  0.167  0.499  1.0
  O  O32  1  0.000  0.790  0.998  1.0
  O  O33  1  0.000  0.000  0.479  1.0
  O  O34  1  0.000  0.210  0.998  1.0
  O  O35  1  0.210  0.000  0.998  1.0
  O  O36  1  0.210  0.210  0.998  1.0
  O  O37  1  0.335  0.167  0.499  1.0
[/CIF]
.