The crystal structure described by MgTi2(Fe2O5)2 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(10), one O(2), one O(3), one O(5), one O(7), and one O(9) atom to form MgO6 octahedra that share corners with two equivalent Fe(1)O6 octahedra, corners with three equivalent Fe(3)O6 octahedra,  an edgeedge with one Ti(1)O6 octahedra, and  a faceface with one Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 44-56°. There are two inequivalent Ti sites. In the first Ti site, Ti(1) is bonded to one O(1), one O(10), one O(2), one O(4), one O(6), and one O(8) atom to form TiO6 octahedra that share corners with three equivalent Fe(1)O6 octahedra, corners with three equivalent Fe(3)O6 octahedra, and  an edgeedge with one Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 29-48°. In the second Ti site, Ti(2) is bonded in a 5-coordinate geometry to one O(1), one O(3), one O(5), one O(7), and one O(9) atom. There are four inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(10), one O(2), one O(3), one O(5), one O(6), and one O(9) atom to form distorted FeO6 octahedra that share corners with two equivalent Mg(1)O6 octahedra, corners with three equivalent Ti(1)O6 octahedra,  an edgeedge with one Fe(3)O6 octahedra, and  a faceface with one Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 37-56°. In the second Fe site, Fe(2) is bonded in a 5-coordinate geometry to one O(10), one O(2), one O(4), one O(6), and one O(9) atom. In the third Fe site, Fe(3) is bonded to one O(1), one O(3), one O(4), one O(5), one O(7), and one O(8) atom to form distorted FeO6 octahedra that share corners with three equivalent Mg(1)O6 octahedra, corners with three equivalent Ti(1)O6 octahedra, and  an edgeedge with one Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 29-49°. In the fourth Fe site, Fe(4) is bonded in a 6-coordinate geometry to one O(1), one O(3), one O(4), one O(6), one O(7), and one O(8) atom. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a distorted see-saw-like geometry to one Ti(1), one Ti(2), one Fe(3), and one Fe(4) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Mg(1), one Ti(1), one Fe(1), and one Fe(2) atom. In the third O site, O(3) is bonded in a 5-coordinate geometry to one Mg(1), one Ti(2), one Fe(1), one Fe(3), and one Fe(4) atom. In the fourth O site, O(4) is bonded to one Ti(1), one Fe(2), one Fe(3), and one Fe(4) atom to form OTiFe3 trigonal pyramids that share  a cornercorner with one O(9)MgTiFe2 tetrahedra,  a cornercorner with one O(5)MgTiFe2 trigonal pyramid,  a cornercorner with one O(6)TiFe3 trigonal pyramid, corners with two equivalent O(10)MgTiFe2 trigonal pyramids, and  an edgeedge with one O(6)TiFe3 trigonal pyramid. In the fifth O site, O(5) is bonded to one Mg(1), one Ti(2), one Fe(1), and one Fe(3) atom to form OMgTiFe2 trigonal pyramids that share  a cornercorner with one O(9)MgTiFe2 tetrahedra,  a cornercorner with one O(4)TiFe3 trigonal pyramid,  a cornercorner with one O(6)TiFe3 trigonal pyramid, corners with two equivalent O(10)MgTiFe2 trigonal pyramids, and  an edgeedge with one O(9)MgTiFe2 tetrahedra. In the sixth O site, O(6) is bonded to one Ti(1), one Fe(1), one Fe(2), and one Fe(4) atom to form OTiFe3 trigonal pyramids that share corners with two equivalent O(9)MgTiFe2 tetrahedra,  a cornercorner with one O(10)MgTiFe2 trigonal pyramid,  a cornercorner with one O(5)MgTiFe2 trigonal pyramid,  a cornercorner with one O(4)TiFe3 trigonal pyramid,  an edgeedge with one O(10)MgTiFe2 trigonal pyramid, and  an edgeedge with one O(4)TiFe3 trigonal pyramid. In the seventh O site, O(7) is bonded in a see-saw-like geometry to one Mg(1), one Ti(2), one Fe(3), and one Fe(4) atom. In the eighth O site, O(8) is bonded in a distorted trigonal planar geometry to one Ti(1), one Fe(3), and one Fe(4) atom. In the ninth O site, O(9) is bonded to one Mg(1), one Ti(2), one Fe(1), and one Fe(2) atom to form distorted OMgTiFe2 tetrahedra that share  a cornercorner with one O(10)MgTiFe2 trigonal pyramid,  a cornercorner with one O(5)MgTiFe2 trigonal pyramid,  a cornercorner with one O(4)TiFe3 trigonal pyramid, corners with two equivalent O(6)TiFe3 trigonal pyramids,  an edgeedge with one O(10)MgTiFe2 trigonal pyramid, and  an edgeedge with one O(5)MgTiFe2 trigonal pyramid. In the tenth O site, O(10) is bonded to one Mg(1), one Ti(1), one Fe(1), and one Fe(2) atom to form OMgTiFe2 trigonal pyramids that share  a cornercorner with one O(9)MgTiFe2 tetrahedra,  a cornercorner with one O(6)TiFe3 trigonal pyramid, corners with two equivalent O(5)MgTiFe2 trigonal pyramids, corners with two equivalent O(4)TiFe3 trigonal pyramids,  an edgeedge with one O(9)MgTiFe2 tetrahedra, and  an edgeedge with one O(6)TiFe3 trigonal pyramid. is represented by the CIF card [CIF]
data_MgTi2(Fe2O5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.184
_cell_length_b   5.685
_cell_length_c   7.865
_cell_angle_alpha   110.249
_cell_angle_beta   90.966
_cell_angle_gamma   116.659
_symmetry_Int_Tables_number   1
_cell_volume   190.234
_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
  Mg  Mg0  1  0.191  0.380  0.903  1.0
  Ti  Ti1  1  0.967  0.968  0.503  1.0
  Ti  Ti2  1  0.997  0.930  0.041  1.0
  Fe  Fe3  1  0.398  0.803  0.766  1.0
  Fe  Fe4  1  0.643  0.302  0.648  1.0
  Fe  Fe5  1  0.637  0.218  0.199  1.0
  Fe  Fe6  1  0.362  0.705  0.304  1.0
  O  O7  1  0.189  0.967  0.250  1.0
  O  O8  1  0.814  0.001  0.723  1.0
  O  O9  1  0.578  0.793  0.018  1.0
  O  O10  1  0.752  0.118  0.403  1.0
  O  O11  1  0.378  0.145  0.965  1.0
  O  O12  1  0.257  0.865  0.561  1.0
  O  O13  1  0.025  0.322  0.126  1.0
  O  O14  1  0.685  0.592  0.349  1.0
  O  O15  1  0.991  0.609  0.852  1.0
  O  O16  1  0.310  0.390  0.654  1.0
[/CIF]
.
The crystal structure described by MgTi2(Fe2O5)2 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(10), one O(2), one O(3), one O(5), one O(7), and one O(9) atom to form MgO6 octahedra that share corners with two equivalent Fe(1)O6 octahedra, corners with three equivalent Fe(3)O6 octahedra,  an edgeedge with one Ti(1)O6 octahedra, and  a faceface with one Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 44-56°. There are two inequivalent Ti sites. In the first Ti site, Ti(1) is bonded to one O(1), one O(10), one O(2), one O(4), one O(6), and one O(8) atom to form TiO6 octahedra that share corners with three equivalent Fe(1)O6 octahedra, corners with three equivalent Fe(3)O6 octahedra, and  an edgeedge with one Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 29-48°. In the second Ti site, Ti(2) is bonded in a 5-coordinate geometry to one O(1), one O(3), one O(5), one O(7), and one O(9) atom. There are four inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(10), one O(2), one O(3), one O(5), one O(6), and one O(9) atom to form distorted FeO6 octahedra that share corners with two equivalent Mg(1)O6 octahedra, corners with three equivalent Ti(1)O6 octahedra,  an edgeedge with one Fe(3)O6 octahedra, and  a faceface with one Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 37-56°. In the second Fe site, Fe(2) is bonded in a 5-coordinate geometry to one O(10), one O(2), one O(4), one O(6), and one O(9) atom. In the third Fe site, Fe(3) is bonded to one O(1), one O(3), one O(4), one O(5), one O(7), and one O(8) atom to form distorted FeO6 octahedra that share corners with three equivalent Mg(1)O6 octahedra, corners with three equivalent Ti(1)O6 octahedra, and  an edgeedge with one Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 29-49°. In the fourth Fe site, Fe(4) is bonded in a 6-coordinate geometry to one O(1), one O(3), one O(4), one O(6), one O(7), and one O(8) atom. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a distorted see-saw-like geometry to one Ti(1), one Ti(2), one Fe(3), and one Fe(4) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Mg(1), one Ti(1), one Fe(1), and one Fe(2) atom. In the third O site, O(3) is bonded in a 5-coordinate geometry to one Mg(1), one Ti(2), one Fe(1), one Fe(3), and one Fe(4) atom. In the fourth O site, O(4) is bonded to one Ti(1), one Fe(2), one Fe(3), and one Fe(4) atom to form OTiFe3 trigonal pyramids that share  a cornercorner with one O(9)MgTiFe2 tetrahedra,  a cornercorner with one O(5)MgTiFe2 trigonal pyramid,  a cornercorner with one O(6)TiFe3 trigonal pyramid, corners with two equivalent O(10)MgTiFe2 trigonal pyramids, and  an edgeedge with one O(6)TiFe3 trigonal pyramid. In the fifth O site, O(5) is bonded to one Mg(1), one Ti(2), one Fe(1), and one Fe(3) atom to form OMgTiFe2 trigonal pyramids that share  a cornercorner with one O(9)MgTiFe2 tetrahedra,  a cornercorner with one O(4)TiFe3 trigonal pyramid,  a cornercorner with one O(6)TiFe3 trigonal pyramid, corners with two equivalent O(10)MgTiFe2 trigonal pyramids, and  an edgeedge with one O(9)MgTiFe2 tetrahedra. In the sixth O site, O(6) is bonded to one Ti(1), one Fe(1), one Fe(2), and one Fe(4) atom to form OTiFe3 trigonal pyramids that share corners with two equivalent O(9)MgTiFe2 tetrahedra,  a cornercorner with one O(10)MgTiFe2 trigonal pyramid,  a cornercorner with one O(5)MgTiFe2 trigonal pyramid,  a cornercorner with one O(4)TiFe3 trigonal pyramid,  an edgeedge with one O(10)MgTiFe2 trigonal pyramid, and  an edgeedge with one O(4)TiFe3 trigonal pyramid. In the seventh O site, O(7) is bonded in a see-saw-like geometry to one Mg(1), one Ti(2), one Fe(3), and one Fe(4) atom. In the eighth O site, O(8) is bonded in a distorted trigonal planar geometry to one Ti(1), one Fe(3), and one Fe(4) atom. In the ninth O site, O(9) is bonded to one Mg(1), one Ti(2), one Fe(1), and one Fe(2) atom to form distorted OMgTiFe2 tetrahedra that share  a cornercorner with one O(10)MgTiFe2 trigonal pyramid,  a cornercorner with one O(5)MgTiFe2 trigonal pyramid,  a cornercorner with one O(4)TiFe3 trigonal pyramid, corners with two equivalent O(6)TiFe3 trigonal pyramids,  an edgeedge with one O(10)MgTiFe2 trigonal pyramid, and  an edgeedge with one O(5)MgTiFe2 trigonal pyramid. In the tenth O site, O(10) is bonded to one Mg(1), one Ti(1), one Fe(1), and one Fe(2) atom to form OMgTiFe2 trigonal pyramids that share  a cornercorner with one O(9)MgTiFe2 tetrahedra,  a cornercorner with one O(6)TiFe3 trigonal pyramid, corners with two equivalent O(5)MgTiFe2 trigonal pyramids, corners with two equivalent O(4)TiFe3 trigonal pyramids,  an edgeedge with one O(9)MgTiFe2 tetrahedra, and  an edgeedge with one O(6)TiFe3 trigonal pyramid. is represented by the CIF card [CIF]
data_MgTi2(Fe2O5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.184
_cell_length_b   5.685
_cell_length_c   7.865
_cell_angle_alpha   110.249
_cell_angle_beta   90.966
_cell_angle_gamma   116.659
_symmetry_Int_Tables_number   1
_cell_volume   190.234
_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
  Mg  Mg0  1  0.191  0.380  0.903  1.0
  Ti  Ti1  1  0.967  0.968  0.503  1.0
  Ti  Ti2  1  0.997  0.930  0.041  1.0
  Fe  Fe3  1  0.398  0.803  0.766  1.0
  Fe  Fe4  1  0.643  0.302  0.648  1.0
  Fe  Fe5  1  0.637  0.218  0.199  1.0
  Fe  Fe6  1  0.362  0.705  0.304  1.0
  O  O7  1  0.189  0.967  0.250  1.0
  O  O8  1  0.814  0.001  0.723  1.0
  O  O9  1  0.578  0.793  0.018  1.0
  O  O10  1  0.752  0.118  0.403  1.0
  O  O11  1  0.378  0.145  0.965  1.0
  O  O12  1  0.257  0.865  0.561  1.0
  O  O13  1  0.025  0.322  0.126  1.0
  O  O14  1  0.685  0.592  0.349  1.0
  O  O15  1  0.991  0.609  0.852  1.0
  O  O16  1  0.310  0.390  0.654  1.0
[/CIF]
.