The structure described by Ta3InO9 crystallizes in the monoclinic P2_1/m space group. There are two inequivalent Ta sites. In the first Ta site, Ta(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(5) atoms to form corner-sharing TaO6 octahedra. The corner-sharing octahedral tilt angles range from 34-51°. In the second Ta site, Ta(2) is bonded to one O(2), one O(4), one O(5), one O(6), and two equivalent O(3) atoms to form a mixture of distorted corner and edge-sharing TaO6 octahedra. The corner-sharing octahedral tilt angles range from 35-51°. In(1) is bonded in a 8-coordinate geometry to one O(4), one O(6), two equivalent O(2), and four equivalent O(3) atoms. There are six inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to two equivalent Ta(1) atoms. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Ta(1), one Ta(2), and one In(1) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to two equivalent Ta(2) and two equivalent In(1) atoms. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to two equivalent Ta(2) and one In(1) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one Ta(1) and one Ta(2) atom. In the sixth O site, O(6) is bonded in a distorted trigonal non-coplanar geometry to two equivalent Ta(2) and one In(1) atom. is represented by the CIF file [CIF]
data_Ta3InO9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.491
_cell_length_b   5.197
_cell_length_c   8.372
_cell_angle_alpha   87.764
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   325.625
_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
  Ta  Ta0  1  0.000  0.000  0.000  1.0
  Ta  Ta1  1  0.500  0.000  0.000  1.0
  Ta  Ta2  1  0.493  0.529  0.695  1.0
  Ta  Ta3  1  0.007  0.529  0.695  1.0
  Ta  Ta4  1  0.993  0.471  0.305  1.0
  Ta  Ta5  1  0.507  0.471  0.305  1.0
  In  In6  1  0.250  0.971  0.440  1.0
  In  In7  1  0.750  0.029  0.560  1.0
  O  O8  1  0.250  0.900  0.975  1.0
  O  O9  1  0.932  0.851  0.786  1.0
  O  O10  1  0.568  0.851  0.786  1.0
  O  O11  1  0.949  0.745  0.471  1.0
  O  O12  1  0.551  0.745  0.471  1.0
  O  O13  1  0.250  0.672  0.651  1.0
  O  O14  1  0.945  0.671  0.121  1.0
  O  O15  1  0.555  0.671  0.121  1.0
  O  O16  1  0.250  0.599  0.319  1.0
  O  O17  1  0.750  0.401  0.681  1.0
  O  O18  1  0.055  0.329  0.879  1.0
  O  O19  1  0.445  0.329  0.879  1.0
  O  O20  1  0.750  0.328  0.349  1.0
  O  O21  1  0.051  0.255  0.529  1.0
  O  O22  1  0.449  0.255  0.529  1.0
  O  O23  1  0.068  0.149  0.214  1.0
  O  O24  1  0.432  0.149  0.214  1.0
  O  O25  1  0.750  0.100  0.025  1.0
[/CIF]
.
The structure described by Ta3InO9 crystallizes in the monoclinic P2_1/m space group. There are two inequivalent Ta sites. In the first Ta site, Ta(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(5) atoms to form corner-sharing TaO6 octahedra. The corner-sharing octahedral tilt angles range from 34-51°. In the second Ta site, Ta(2) is bonded to one O(2), one O(4), one O(5), one O(6), and two equivalent O(3) atoms to form a mixture of distorted corner and edge-sharing TaO6 octahedra. The corner-sharing octahedral tilt angles range from 35-51°. In(1) is bonded in a 8-coordinate geometry to one O(4), one O(6), two equivalent O(2), and four equivalent O(3) atoms. There are six inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to two equivalent Ta(1) atoms. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Ta(1), one Ta(2), and one In(1) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to two equivalent Ta(2) and two equivalent In(1) atoms. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to two equivalent Ta(2) and one In(1) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one Ta(1) and one Ta(2) atom. In the sixth O site, O(6) is bonded in a distorted trigonal non-coplanar geometry to two equivalent Ta(2) and one In(1) atom. is represented by the CIF file [CIF]
data_Ta3InO9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.491
_cell_length_b   5.197
_cell_length_c   8.372
_cell_angle_alpha   87.764
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   325.625
_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
  Ta  Ta0  1  0.000  0.000  0.000  1.0
  Ta  Ta1  1  0.500  0.000  0.000  1.0
  Ta  Ta2  1  0.493  0.529  0.695  1.0
  Ta  Ta3  1  0.007  0.529  0.695  1.0
  Ta  Ta4  1  0.993  0.471  0.305  1.0
  Ta  Ta5  1  0.507  0.471  0.305  1.0
  In  In6  1  0.250  0.971  0.440  1.0
  In  In7  1  0.750  0.029  0.560  1.0
  O  O8  1  0.250  0.900  0.975  1.0
  O  O9  1  0.932  0.851  0.786  1.0
  O  O10  1  0.568  0.851  0.786  1.0
  O  O11  1  0.949  0.745  0.471  1.0
  O  O12  1  0.551  0.745  0.471  1.0
  O  O13  1  0.250  0.672  0.651  1.0
  O  O14  1  0.945  0.671  0.121  1.0
  O  O15  1  0.555  0.671  0.121  1.0
  O  O16  1  0.250  0.599  0.319  1.0
  O  O17  1  0.750  0.401  0.681  1.0
  O  O18  1  0.055  0.329  0.879  1.0
  O  O19  1  0.445  0.329  0.879  1.0
  O  O20  1  0.750  0.328  0.349  1.0
  O  O21  1  0.051  0.255  0.529  1.0
  O  O22  1  0.449  0.255  0.529  1.0
  O  O23  1  0.068  0.149  0.214  1.0
  O  O24  1  0.432  0.149  0.214  1.0
  O  O25  1  0.750  0.100  0.025  1.0
[/CIF]
.