The material described by K2Na2MgTi2O6 crystallizes in the triclinic P-1 space group. K(1) is bonded in a 4-coordinate geometry to one O(1), one O(2), and two equivalent O(3) atoms. Na(1) is bonded in a distorted see-saw-like geometry to one O(1), one O(3), and two equivalent O(2) atoms. Mg(1) is bonded in a distorted square co-planar geometry to two equivalent O(1) and two equivalent O(3) atoms. Ti(1) is bonded to one O(3), two equivalent O(1), and two equivalent O(2) atoms to form edge-sharing TiO5 trigonal bipyramids. There are three inequivalent O sites. In the first O site, O(1) is bonded to one K(1), one Na(1), one Mg(1), and two equivalent Ti(1) atoms to form a mixture of distorted edge and corner-sharing OKNaMgTi2 trigonal bipyramids. In the second O site, O(2) is bonded in a 5-coordinate geometry to one K(1), two equivalent Na(1), and two equivalent Ti(1) atoms. In the third O site, O(3) is bonded in a 5-coordinate geometry to two equivalent K(1), one Na(1), one Mg(1), and one Ti(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_K2Na2MgTi2O6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.724
_cell_length_b   6.639
_cell_length_c   6.265
_cell_angle_alpha   61.984
_cell_angle_beta   94.709
_cell_angle_gamma   94.691
_symmetry_Int_Tables_number   1
_cell_volume   209.252
_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
  K  K0  1  0.213  0.368  0.515  1.0
  K  K1  1  0.787  0.632  0.485  1.0
  Na  Na2  1  0.214  0.625  0.865  1.0
  Na  Na3  1  0.786  0.375  0.135  1.0
  Mg  Mg4  1  0.500  0.000  0.500  1.0
  Ti  Ti5  1  0.759  0.035  0.909  1.0
  Ti  Ti6  1  0.241  0.965  0.091  1.0
  O  O7  1  0.406  0.959  0.831  1.0
  O  O8  1  0.958  0.775  0.048  1.0
  O  O9  1  0.042  0.225  0.952  1.0
  O  O10  1  0.594  0.041  0.169  1.0
  O  O11  1  0.239  0.812  0.435  1.0
  O  O12  1  0.761  0.188  0.565  1.0
[/CIF]
.
The material described by K2Na2MgTi2O6 crystallizes in the triclinic P-1 space group. K(1) is bonded in a 4-coordinate geometry to one O(1), one O(2), and two equivalent O(3) atoms. Na(1) is bonded in a distorted see-saw-like geometry to one O(1), one O(3), and two equivalent O(2) atoms. Mg(1) is bonded in a distorted square co-planar geometry to two equivalent O(1) and two equivalent O(3) atoms. Ti(1) is bonded to one O(3), two equivalent O(1), and two equivalent O(2) atoms to form edge-sharing TiO5 trigonal bipyramids. There are three inequivalent O sites. In the first O site, O(1) is bonded to one K(1), one Na(1), one Mg(1), and two equivalent Ti(1) atoms to form a mixture of distorted edge and corner-sharing OKNaMgTi2 trigonal bipyramids. In the second O site, O(2) is bonded in a 5-coordinate geometry to one K(1), two equivalent Na(1), and two equivalent Ti(1) atoms. In the third O site, O(3) is bonded in a 5-coordinate geometry to two equivalent K(1), one Na(1), one Mg(1), and one Ti(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_K2Na2MgTi2O6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.724
_cell_length_b   6.639
_cell_length_c   6.265
_cell_angle_alpha   61.984
_cell_angle_beta   94.709
_cell_angle_gamma   94.691
_symmetry_Int_Tables_number   1
_cell_volume   209.252
_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
  K  K0  1  0.213  0.368  0.515  1.0
  K  K1  1  0.787  0.632  0.485  1.0
  Na  Na2  1  0.214  0.625  0.865  1.0
  Na  Na3  1  0.786  0.375  0.135  1.0
  Mg  Mg4  1  0.500  0.000  0.500  1.0
  Ti  Ti5  1  0.759  0.035  0.909  1.0
  Ti  Ti6  1  0.241  0.965  0.091  1.0
  O  O7  1  0.406  0.959  0.831  1.0
  O  O8  1  0.958  0.775  0.048  1.0
  O  O9  1  0.042  0.225  0.952  1.0
  O  O10  1  0.594  0.041  0.169  1.0
  O  O11  1  0.239  0.812  0.435  1.0
  O  O12  1  0.761  0.188  0.565  1.0
[/CIF]
.