The crystal structure described by Ti6O11 crystallizes in the monoclinic C2/m space group. There are six inequivalent Ti sites. In the first Ti site, Ti(1) is bonded to one O(10), one O(5), one O(7), one O(9), and two equivalent O(3) atoms to form a mixture of distorted corner and edge-sharing TiO6 octahedra. The corner-sharing octahedral tilt angles range from 22-28°. In the second Ti site, Ti(2) is bonded to one O(5), two equivalent O(9), and three equivalent O(8) atoms to form a mixture of corner and edge-sharing TiO6 octahedra. The corner-sharing octahedral tilt angles range from 19-23°. In the third Ti site, Ti(3) is bonded to one O(1), one O(11), one O(4), one O(6), and two equivalent O(2) atoms to form a mixture of distorted corner and edge-sharing TiO6 octahedra. The corner-sharing octahedral tilt angles range from 4-55°. In the fourth Ti site, Ti(4) is bonded to one O(10), one O(11), one O(2), one O(7), and two equivalent O(1) atoms to form a mixture of distorted corner and edge-sharing TiO6 octahedra. The corner-sharing octahedral tilt angles range from 14-41°. In the fifth Ti site, Ti(5) is bonded to one O(11), one O(2), two equivalent O(4), and two equivalent O(6) atoms to form a mixture of corner and edge-sharing TiO6 octahedra. The corner-sharing octahedral tilt angles range from 4-27°. In the sixth Ti site, Ti(6) is bonded to one O(1), one O(10), one O(3), one O(5), and two equivalent O(7) atoms to form a mixture of corner and edge-sharing TiO6 octahedra. The corner-sharing octahedral tilt angles range from 19-55°. There are eleven inequivalent O sites. In the first O site, O(7) is bonded to one Ti(1), one Ti(4), and two equivalent Ti(6) atoms to form distorted corner-sharing OTi4 trigonal pyramids. In the second O site, O(8) is bonded in a distorted T-shaped geometry to three equivalent Ti(2) atoms. In the third O site, O(9) is bonded in a T-shaped geometry to one Ti(1) and two equivalent Ti(2) atoms. In the fourth O site, O(10) is bonded in a distorted T-shaped geometry to one Ti(1), one Ti(4), and one Ti(6) atom. In the fifth O site, O(11) is bonded in a T-shaped geometry to one Ti(3), one Ti(4), and one Ti(5) atom. In the sixth O site, O(1) is bonded in a 4-coordinate geometry to one Ti(3), one Ti(6), and two equivalent Ti(4) atoms. In the seventh O site, O(2) is bonded to one Ti(4), one Ti(5), and two equivalent Ti(3) atoms to form corner-sharing OTi4 trigonal pyramids. In the eighth O site, O(3) is bonded in a distorted T-shaped geometry to one Ti(6) and two equivalent Ti(1) atoms. In the ninth O site, O(4) is bonded in a distorted T-shaped geometry to one Ti(3) and two equivalent Ti(5) atoms. In the tenth O site, O(5) is bonded in a T-shaped geometry to one Ti(1), one Ti(2), and one Ti(6) atom. In the eleventh O site, O(6) is bonded in a T-shaped geometry to one Ti(3) and two equivalent Ti(5) atoms. is represented by the CIF card [CIF]
data_Ti6O11
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.756
_cell_length_b   5.270
_cell_length_c   20.946
_cell_angle_alpha   92.437
_cell_angle_beta   90.000
_cell_angle_gamma   110.878
_symmetry_Int_Tables_number   1
_cell_volume   386.956
_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
  Ti  Ti0  1  0.969  0.937  0.354  1.0
  Ti  Ti1  1  0.140  0.280  0.475  1.0
  Ti  Ti2  1  0.860  0.720  0.525  1.0
  Ti  Ti3  1  0.220  0.440  0.109  1.0
  Ti  Ti4  1  0.094  0.189  0.796  1.0
  Ti  Ti5  1  0.053  0.106  0.940  1.0
  Ti  Ti6  1  0.947  0.894  0.060  1.0
  Ti  Ti7  1  0.031  0.063  0.646  1.0
  Ti  Ti8  1  0.780  0.560  0.891  1.0
  Ti  Ti9  1  0.906  0.811  0.204  1.0
  Ti  Ti10  1  0.240  0.481  0.297  1.0
  Ti  Ti11  1  0.760  0.519  0.703  1.0
  O  O12  1  0.665  0.331  0.793  1.0
  O  O13  1  0.232  0.464  0.879  1.0
  O  O14  1  0.423  0.847  0.346  1.0
  O  O15  1  0.407  0.815  0.070  1.0
  O  O16  1  0.593  0.185  0.930  1.0
  O  O17  1  0.841  0.682  0.620  1.0
  O  O18  1  0.335  0.669  0.207  1.0
  O  O19  1  0.867  0.734  0.972  1.0
  O  O20  1  0.159  0.318  0.380  1.0
  O  O21  1  0.133  0.266  0.028  1.0
  O  O22  1  0.791  0.581  0.291  1.0
  O  O23  1  0.323  0.646  0.520  1.0
  O  O24  1  0.209  0.419  0.709  1.0
  O  O25  1  0.950  0.901  0.444  1.0
  O  O26  1  0.768  0.536  0.121  1.0
  O  O27  1  0.944  0.889  0.731  1.0
  O  O28  1  0.056  0.111  0.269  1.0
  O  O29  1  0.677  0.354  0.480  1.0
  O  O30  1  0.050  0.099  0.556  1.0
  O  O31  1  0.953  0.905  0.852  1.0
  O  O32  1  0.577  0.153  0.654  1.0
  O  O33  1  0.047  0.095  0.148  1.0
[/CIF]
.
The crystal structure described by Ti6O11 crystallizes in the monoclinic C2/m space group. There are six inequivalent Ti sites. In the first Ti site, Ti(1) is bonded to one O(10), one O(5), one O(7), one O(9), and two equivalent O(3) atoms to form a mixture of distorted corner and edge-sharing TiO6 octahedra. The corner-sharing octahedral tilt angles range from 22-28°. In the second Ti site, Ti(2) is bonded to one O(5), two equivalent O(9), and three equivalent O(8) atoms to form a mixture of corner and edge-sharing TiO6 octahedra. The corner-sharing octahedral tilt angles range from 19-23°. In the third Ti site, Ti(3) is bonded to one O(1), one O(11), one O(4), one O(6), and two equivalent O(2) atoms to form a mixture of distorted corner and edge-sharing TiO6 octahedra. The corner-sharing octahedral tilt angles range from 4-55°. In the fourth Ti site, Ti(4) is bonded to one O(10), one O(11), one O(2), one O(7), and two equivalent O(1) atoms to form a mixture of distorted corner and edge-sharing TiO6 octahedra. The corner-sharing octahedral tilt angles range from 14-41°. In the fifth Ti site, Ti(5) is bonded to one O(11), one O(2), two equivalent O(4), and two equivalent O(6) atoms to form a mixture of corner and edge-sharing TiO6 octahedra. The corner-sharing octahedral tilt angles range from 4-27°. In the sixth Ti site, Ti(6) is bonded to one O(1), one O(10), one O(3), one O(5), and two equivalent O(7) atoms to form a mixture of corner and edge-sharing TiO6 octahedra. The corner-sharing octahedral tilt angles range from 19-55°. There are eleven inequivalent O sites. In the first O site, O(7) is bonded to one Ti(1), one Ti(4), and two equivalent Ti(6) atoms to form distorted corner-sharing OTi4 trigonal pyramids. In the second O site, O(8) is bonded in a distorted T-shaped geometry to three equivalent Ti(2) atoms. In the third O site, O(9) is bonded in a T-shaped geometry to one Ti(1) and two equivalent Ti(2) atoms. In the fourth O site, O(10) is bonded in a distorted T-shaped geometry to one Ti(1), one Ti(4), and one Ti(6) atom. In the fifth O site, O(11) is bonded in a T-shaped geometry to one Ti(3), one Ti(4), and one Ti(5) atom. In the sixth O site, O(1) is bonded in a 4-coordinate geometry to one Ti(3), one Ti(6), and two equivalent Ti(4) atoms. In the seventh O site, O(2) is bonded to one Ti(4), one Ti(5), and two equivalent Ti(3) atoms to form corner-sharing OTi4 trigonal pyramids. In the eighth O site, O(3) is bonded in a distorted T-shaped geometry to one Ti(6) and two equivalent Ti(1) atoms. In the ninth O site, O(4) is bonded in a distorted T-shaped geometry to one Ti(3) and two equivalent Ti(5) atoms. In the tenth O site, O(5) is bonded in a T-shaped geometry to one Ti(1), one Ti(2), and one Ti(6) atom. In the eleventh O site, O(6) is bonded in a T-shaped geometry to one Ti(3) and two equivalent Ti(5) atoms. is represented by the CIF card [CIF]
data_Ti6O11
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.756
_cell_length_b   5.270
_cell_length_c   20.946
_cell_angle_alpha   92.437
_cell_angle_beta   90.000
_cell_angle_gamma   110.878
_symmetry_Int_Tables_number   1
_cell_volume   386.956
_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
  Ti  Ti0  1  0.969  0.937  0.354  1.0
  Ti  Ti1  1  0.140  0.280  0.475  1.0
  Ti  Ti2  1  0.860  0.720  0.525  1.0
  Ti  Ti3  1  0.220  0.440  0.109  1.0
  Ti  Ti4  1  0.094  0.189  0.796  1.0
  Ti  Ti5  1  0.053  0.106  0.940  1.0
  Ti  Ti6  1  0.947  0.894  0.060  1.0
  Ti  Ti7  1  0.031  0.063  0.646  1.0
  Ti  Ti8  1  0.780  0.560  0.891  1.0
  Ti  Ti9  1  0.906  0.811  0.204  1.0
  Ti  Ti10  1  0.240  0.481  0.297  1.0
  Ti  Ti11  1  0.760  0.519  0.703  1.0
  O  O12  1  0.665  0.331  0.793  1.0
  O  O13  1  0.232  0.464  0.879  1.0
  O  O14  1  0.423  0.847  0.346  1.0
  O  O15  1  0.407  0.815  0.070  1.0
  O  O16  1  0.593  0.185  0.930  1.0
  O  O17  1  0.841  0.682  0.620  1.0
  O  O18  1  0.335  0.669  0.207  1.0
  O  O19  1  0.867  0.734  0.972  1.0
  O  O20  1  0.159  0.318  0.380  1.0
  O  O21  1  0.133  0.266  0.028  1.0
  O  O22  1  0.791  0.581  0.291  1.0
  O  O23  1  0.323  0.646  0.520  1.0
  O  O24  1  0.209  0.419  0.709  1.0
  O  O25  1  0.950  0.901  0.444  1.0
  O  O26  1  0.768  0.536  0.121  1.0
  O  O27  1  0.944  0.889  0.731  1.0
  O  O28  1  0.056  0.111  0.269  1.0
  O  O29  1  0.677  0.354  0.480  1.0
  O  O30  1  0.050  0.099  0.556  1.0
  O  O31  1  0.953  0.905  0.852  1.0
  O  O32  1  0.577  0.153  0.654  1.0
  O  O33  1  0.047  0.095  0.148  1.0
[/CIF]
.