The material structure described by Ta4O crystallizes in the tetragonal P4/mmm space group. There are three inequivalent Ta sites. In the first Ta site, Ta(1) is bonded in a square co-planar geometry to four equivalent O(1) atoms. In the second Ta site, Ta(2) is bonded in a single-bond geometry to four equivalent Ta(3) and one O(1) atom. In the third Ta site, Ta(3) is bonded in a body-centered cubic geometry to eight equivalent Ta(2) atoms. O(1) is bonded to two equivalent Ta(2) and four equivalent Ta(1) atoms to form a mixture of corner and edge-sharing OTa6 octahedra. The corner-sharing octahedra are not tilted. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ta4O
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.257
_cell_length_b   3.257
_cell_length_c   7.409
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   78.623
_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
  Ta  Ta0  1  0.000  0.000  0.500  1.0
  Ta  Ta1  1  0.500  0.500  0.783  1.0
  Ta  Ta2  1  0.500  0.500  0.217  1.0
  Ta  Ta3  1  0.000  0.000  0.000  1.0
  O  O4  1  0.500  0.500  0.500  1.0
[/CIF]
.
The material structure described by Ta4O crystallizes in the tetragonal P4/mmm space group. There are three inequivalent Ta sites. In the first Ta site, Ta(1) is bonded in a square co-planar geometry to four equivalent O(1) atoms. In the second Ta site, Ta(2) is bonded in a single-bond geometry to four equivalent Ta(3) and one O(1) atom. In the third Ta site, Ta(3) is bonded in a body-centered cubic geometry to eight equivalent Ta(2) atoms. O(1) is bonded to two equivalent Ta(2) and four equivalent Ta(1) atoms to form a mixture of corner and edge-sharing OTa6 octahedra. The corner-sharing octahedra are not tilted. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ta4O
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.257
_cell_length_b   3.257
_cell_length_c   7.409
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   78.623
_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
  Ta  Ta0  1  0.000  0.000  0.500  1.0
  Ta  Ta1  1  0.500  0.500  0.783  1.0
  Ta  Ta2  1  0.500  0.500  0.217  1.0
  Ta  Ta3  1  0.000  0.000  0.000  1.0
  O  O4  1  0.500  0.500  0.500  1.0
[/CIF]
.