The structure described by LaNbTiO6 crystallizes in the orthorhombic Pna2_1 space group. La(1) is bonded in a 8-coordinate geometry to one O(1), one O(2), one O(5), one O(6), two equivalent O(3), and two equivalent O(4) atoms. Ti(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form TiO6 octahedra that share corners with four equivalent Nb(1)O6 octahedra and  an edgeedge with one Nb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 22-48°. Nb(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form NbO6 octahedra that share corners with four equivalent Ti(1)O6 octahedra and  an edgeedge with one Ti(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 22-48°. There are six inequivalent O sites. In the first O site, O(6) is bonded in a distorted trigonal non-coplanar geometry to one La(1), one Ti(1), and one Nb(1) atom. In the second O site, O(1) is bonded in a 3-coordinate geometry to one La(1), one Ti(1), and one Nb(1) atom. In the third O site, O(2) is bonded in a 3-coordinate geometry to one La(1), one Ti(1), and one Nb(1) atom. In the fourth O site, O(3) is bonded to two equivalent La(1), one Ti(1), and one Nb(1) atom to form a mixture of distorted edge and corner-sharing OLa2TiNb tetrahedra. In the fifth O site, O(4) is bonded to two equivalent La(1), one Ti(1), and one Nb(1) atom to form a mixture of distorted edge and corner-sharing OLa2TiNb tetrahedra. In the sixth O site, O(5) is bonded in a 3-coordinate geometry to one La(1), one Ti(1), and one Nb(1) atom. is represented by the CIF file [CIF]
data_LaTiNbO6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.482
_cell_length_b   7.648
_cell_length_c   11.162
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   467.948
_cell_formula_units_Z   4
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  0.956  0.250  0.541  1.0
  La  La1  1  0.544  0.250  0.041  1.0
  La  La2  1  0.044  0.750  0.459  1.0
  La  La3  1  0.456  0.750  0.959  1.0
  Ti  Ti4  1  0.470  0.507  0.642  1.0
  Ti  Ti5  1  0.530  0.007  0.358  1.0
  Ti  Ti6  1  0.970  0.007  0.858  1.0
  Ti  Ti7  1  0.030  0.507  0.142  1.0
  Nb  Nb8  1  0.036  0.995  0.146  1.0
  Nb  Nb9  1  0.964  0.494  0.854  1.0
  Nb  Nb10  1  0.536  0.494  0.354  1.0
  Nb  Nb11  1  0.464  0.995  0.646  1.0
  O  O12  1  0.130  0.447  0.708  1.0
  O  O13  1  0.377  0.052  0.211  1.0
  O  O14  1  0.870  0.947  0.292  1.0
  O  O15  1  0.623  0.552  0.789  1.0
  O  O16  1  0.877  0.552  0.289  1.0
  O  O17  1  0.630  0.947  0.792  1.0
  O  O18  1  0.123  0.052  0.711  1.0
  O  O19  1  0.370  0.447  0.208  1.0
  O  O20  1  0.268  0.466  0.473  1.0
  O  O21  1  0.231  0.034  0.971  1.0
  O  O22  1  0.732  0.966  0.527  1.0
  O  O23  1  0.769  0.534  0.029  1.0
  O  O24  1  0.731  0.534  0.529  1.0
  O  O25  1  0.768  0.966  0.027  1.0
  O  O26  1  0.269  0.034  0.471  1.0
  O  O27  1  0.232  0.466  0.973  1.0
  O  O28  1  0.537  0.252  0.643  1.0
  O  O29  1  0.963  0.252  0.143  1.0
  O  O30  1  0.463  0.752  0.357  1.0
  O  O31  1  0.037  0.752  0.857  1.0
  O  O32  1  0.351  0.747  0.623  1.0
  O  O33  1  0.149  0.747  0.123  1.0
  O  O34  1  0.649  0.247  0.377  1.0
  O  O35  1  0.851  0.247  0.877  1.0
[/CIF]
.
The structure described by LaNbTiO6 crystallizes in the orthorhombic Pna2_1 space group. La(1) is bonded in a 8-coordinate geometry to one O(1), one O(2), one O(5), one O(6), two equivalent O(3), and two equivalent O(4) atoms. Ti(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form TiO6 octahedra that share corners with four equivalent Nb(1)O6 octahedra and  an edgeedge with one Nb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 22-48°. Nb(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form NbO6 octahedra that share corners with four equivalent Ti(1)O6 octahedra and  an edgeedge with one Ti(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 22-48°. There are six inequivalent O sites. In the first O site, O(6) is bonded in a distorted trigonal non-coplanar geometry to one La(1), one Ti(1), and one Nb(1) atom. In the second O site, O(1) is bonded in a 3-coordinate geometry to one La(1), one Ti(1), and one Nb(1) atom. In the third O site, O(2) is bonded in a 3-coordinate geometry to one La(1), one Ti(1), and one Nb(1) atom. In the fourth O site, O(3) is bonded to two equivalent La(1), one Ti(1), and one Nb(1) atom to form a mixture of distorted edge and corner-sharing OLa2TiNb tetrahedra. In the fifth O site, O(4) is bonded to two equivalent La(1), one Ti(1), and one Nb(1) atom to form a mixture of distorted edge and corner-sharing OLa2TiNb tetrahedra. In the sixth O site, O(5) is bonded in a 3-coordinate geometry to one La(1), one Ti(1), and one Nb(1) atom. is represented by the CIF file [CIF]
data_LaTiNbO6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.482
_cell_length_b   7.648
_cell_length_c   11.162
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   467.948
_cell_formula_units_Z   4
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  0.956  0.250  0.541  1.0
  La  La1  1  0.544  0.250  0.041  1.0
  La  La2  1  0.044  0.750  0.459  1.0
  La  La3  1  0.456  0.750  0.959  1.0
  Ti  Ti4  1  0.470  0.507  0.642  1.0
  Ti  Ti5  1  0.530  0.007  0.358  1.0
  Ti  Ti6  1  0.970  0.007  0.858  1.0
  Ti  Ti7  1  0.030  0.507  0.142  1.0
  Nb  Nb8  1  0.036  0.995  0.146  1.0
  Nb  Nb9  1  0.964  0.494  0.854  1.0
  Nb  Nb10  1  0.536  0.494  0.354  1.0
  Nb  Nb11  1  0.464  0.995  0.646  1.0
  O  O12  1  0.130  0.447  0.708  1.0
  O  O13  1  0.377  0.052  0.211  1.0
  O  O14  1  0.870  0.947  0.292  1.0
  O  O15  1  0.623  0.552  0.789  1.0
  O  O16  1  0.877  0.552  0.289  1.0
  O  O17  1  0.630  0.947  0.792  1.0
  O  O18  1  0.123  0.052  0.711  1.0
  O  O19  1  0.370  0.447  0.208  1.0
  O  O20  1  0.268  0.466  0.473  1.0
  O  O21  1  0.231  0.034  0.971  1.0
  O  O22  1  0.732  0.966  0.527  1.0
  O  O23  1  0.769  0.534  0.029  1.0
  O  O24  1  0.731  0.534  0.529  1.0
  O  O25  1  0.768  0.966  0.027  1.0
  O  O26  1  0.269  0.034  0.471  1.0
  O  O27  1  0.232  0.466  0.973  1.0
  O  O28  1  0.537  0.252  0.643  1.0
  O  O29  1  0.963  0.252  0.143  1.0
  O  O30  1  0.463  0.752  0.357  1.0
  O  O31  1  0.037  0.752  0.857  1.0
  O  O32  1  0.351  0.747  0.623  1.0
  O  O33  1  0.149  0.747  0.123  1.0
  O  O34  1  0.649  0.247  0.377  1.0
  O  O35  1  0.851  0.247  0.877  1.0
[/CIF]
.