The structure described by K8MgTi2O8 crystallizes in the orthorhombic Amm2 space group. There are three inequivalent K sites. In the first K site, K(1) is bonded in a 3-coordinate geometry to one O(1), one O(2), and one O(4) atom. In the second K site, K(2) is bonded in a distorted trigonal non-coplanar geometry to one O(1) and two equivalent O(4) atoms. In the third K site, K(3) is bonded in a distorted trigonal planar geometry to one O(2) and two equivalent O(3) atoms. Mg(1) is bonded in an L-shaped geometry to two equivalent O(3) atoms. There are two inequivalent Ti sites. In the first Ti site, Ti(1) is bonded in a tetrahedral geometry to two equivalent O(1) and two equivalent O(3) atoms. In the second Ti site, Ti(2) is bonded in a tetrahedral geometry to two equivalent O(2) and two equivalent O(4) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded to one K(2), two equivalent K(1), and one Ti(1) atom to form distorted corner-sharing OK3Ti trigonal pyramids. In the second O site, O(2) is bonded in a distorted rectangular see-saw-like geometry to one K(3), two equivalent K(1), and one Ti(2) atom. In the third O site, O(3) is bonded in a rectangular see-saw-like geometry to two equivalent K(3), one Mg(1), and one Ti(1) atom. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to two equivalent K(1), two equivalent K(2), and one Ti(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_K8MgTi2O8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.779
_cell_length_b   7.779
_cell_length_c   7.228
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   77.919
_symmetry_Int_Tables_number   1
_cell_volume   427.760
_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  0.142  0.752  0.521  1.0
  K  K1  1  0.142  0.752  0.979  1.0
  K  K2  1  0.525  0.831  0.250  1.0
  K  K3  1  0.076  0.398  0.750  1.0
  K  K4  1  0.398  0.076  0.750  1.0
  K  K5  1  0.831  0.525  0.250  1.0
  K  K6  1  0.752  0.142  0.979  1.0
  K  K7  1  0.752  0.142  0.521  1.0
  Mg  Mg8  1  0.151  0.151  0.250  1.0
  Ti  Ti9  1  0.376  0.376  0.250  1.0
  Ti  Ti10  1  0.667  0.667  0.750  1.0
  O  O11  1  0.306  0.612  0.250  1.0
  O  O12  1  0.423  0.747  0.750  1.0
  O  O13  1  0.271  0.271  0.055  1.0
  O  O14  1  0.271  0.271  0.445  1.0
  O  O15  1  0.761  0.761  0.956  1.0
  O  O16  1  0.761  0.761  0.544  1.0
  O  O17  1  0.747  0.423  0.750  1.0
  O  O18  1  0.612  0.306  0.250  1.0
[/CIF]
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The structure described by K8MgTi2O8 crystallizes in the orthorhombic Amm2 space group. There are three inequivalent K sites. In the first K site, K(1) is bonded in a 3-coordinate geometry to one O(1), one O(2), and one O(4) atom. In the second K site, K(2) is bonded in a distorted trigonal non-coplanar geometry to one O(1) and two equivalent O(4) atoms. In the third K site, K(3) is bonded in a distorted trigonal planar geometry to one O(2) and two equivalent O(3) atoms. Mg(1) is bonded in an L-shaped geometry to two equivalent O(3) atoms. There are two inequivalent Ti sites. In the first Ti site, Ti(1) is bonded in a tetrahedral geometry to two equivalent O(1) and two equivalent O(3) atoms. In the second Ti site, Ti(2) is bonded in a tetrahedral geometry to two equivalent O(2) and two equivalent O(4) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded to one K(2), two equivalent K(1), and one Ti(1) atom to form distorted corner-sharing OK3Ti trigonal pyramids. In the second O site, O(2) is bonded in a distorted rectangular see-saw-like geometry to one K(3), two equivalent K(1), and one Ti(2) atom. In the third O site, O(3) is bonded in a rectangular see-saw-like geometry to two equivalent K(3), one Mg(1), and one Ti(1) atom. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to two equivalent K(1), two equivalent K(2), and one Ti(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_K8MgTi2O8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.779
_cell_length_b   7.779
_cell_length_c   7.228
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   77.919
_symmetry_Int_Tables_number   1
_cell_volume   427.760
_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  0.142  0.752  0.521  1.0
  K  K1  1  0.142  0.752  0.979  1.0
  K  K2  1  0.525  0.831  0.250  1.0
  K  K3  1  0.076  0.398  0.750  1.0
  K  K4  1  0.398  0.076  0.750  1.0
  K  K5  1  0.831  0.525  0.250  1.0
  K  K6  1  0.752  0.142  0.979  1.0
  K  K7  1  0.752  0.142  0.521  1.0
  Mg  Mg8  1  0.151  0.151  0.250  1.0
  Ti  Ti9  1  0.376  0.376  0.250  1.0
  Ti  Ti10  1  0.667  0.667  0.750  1.0
  O  O11  1  0.306  0.612  0.250  1.0
  O  O12  1  0.423  0.747  0.750  1.0
  O  O13  1  0.271  0.271  0.055  1.0
  O  O14  1  0.271  0.271  0.445  1.0
  O  O15  1  0.761  0.761  0.956  1.0
  O  O16  1  0.761  0.761  0.544  1.0
  O  O17  1  0.747  0.423  0.750  1.0
  O  O18  1  0.612  0.306  0.250  1.0
[/CIF]
.