The crystal structure described by MgTi(GaO2)4 crystallizes in the monoclinic Cm space group. Mg(1) is bonded to one O(4), one O(5), two equivalent O(2), and two equivalent O(7) atoms to form distorted MgO6 pentagonal pyramids that share  a cornercorner with one Ga(3)O6 octahedra, corners with two equivalent Ti(1)O6 octahedra, corners with two equivalent Ga(2)O6 octahedra,  an edgeedge with one Ga(2)O6 octahedra, edges with two equivalent Ga(3)O6 octahedra, edges with two equivalent Mg(1)O6 pentagonal pyramids, and  a faceface with one Ti(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 16-34°. Ti(1) is bonded to one O(4), one O(8), two equivalent O(2), and two equivalent O(3) atoms to form TiO6 octahedra that share corners with two equivalent Ga(2)O6 octahedra, corners with two equivalent Ga(3)O6 octahedra, corners with two equivalent Mg(1)O6 pentagonal pyramids, corners with two equivalent Ga(4)O4 tetrahedra, edges with two equivalent Ti(1)O6 octahedra, and  a faceface with one Mg(1)O6 pentagonal pyramid. The corner-sharing octahedral tilt angles range from 49-54°. There are four inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 3-coordinate geometry to one O(2) and two equivalent O(5) atoms. In the second Ga site, Ga(2) is bonded to one O(1), one O(6), two equivalent O(7), and two equivalent O(8) atoms to form GaO6 octahedra that share corners with two equivalent Ti(1)O6 octahedra, corners with two equivalent Mg(1)O6 pentagonal pyramids, corners with three equivalent Ga(4)O4 tetrahedra, edges with two equivalent Ga(2)O6 octahedra, edges with two equivalent Ga(3)O6 octahedra, and  an edgeedge with one Mg(1)O6 pentagonal pyramid. The corner-sharing octahedral tilt angles are 54°. In the third Ga site, Ga(3) is bonded to one O(5), one O(7), two equivalent O(4), and two equivalent O(6) atoms to form GaO6 octahedra that share corners with two equivalent Ti(1)O6 octahedra,  a cornercorner with one Mg(1)O6 pentagonal pyramid, corners with two equivalent Ga(4)O4 tetrahedra, edges with two equivalent Ga(2)O6 octahedra, edges with two equivalent Ga(3)O6 octahedra, and edges with two equivalent Mg(1)O6 pentagonal pyramids. The corner-sharing octahedral tilt angles are 49°. In the fourth Ga site, Ga(4) is bonded to one O(3), one O(6), and two equivalent O(1) atoms to form GaO4 tetrahedra that share corners with two equivalent Ti(1)O6 octahedra, corners with two equivalent Ga(3)O6 octahedra, corners with three equivalent Ga(2)O6 octahedra, and corners with two equivalent Ga(4)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 53-63°. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a trigonal planar geometry to one Ga(2) and two equivalent Ga(4) atoms. In the second O site, O(2) is bonded to two equivalent Mg(1), two equivalent Ti(1), and one Ga(1) atom to form distorted OMg2Ti2Ga trigonal bipyramids that share corners with two equivalent O(7)Mg2Ga3 square pyramids,  an edgeedge with one O(7)Mg2Ga3 square pyramid, edges with two equivalent O(2)Mg2Ti2Ga trigonal bipyramids, and edges with two equivalent O(4)MgTiGa2 trigonal pyramids. In the third O site, O(3) is bonded in a trigonal planar geometry to two equivalent Ti(1) and one Ga(4) atom. In the fourth O site, O(4) is bonded to one Mg(1), one Ti(1), and two equivalent Ga(3) atoms to form distorted OMgTiGa2 trigonal pyramids that share corners with two equivalent O(6)Ga4 tetrahedra, corners with two equivalent O(4)MgTiGa2 trigonal pyramids, edges with two equivalent O(7)Mg2Ga3 square pyramids,  an edgeedge with one O(6)Ga4 tetrahedra, and edges with two equivalent O(2)Mg2Ti2Ga trigonal bipyramids. In the fifth O site, O(5) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), one Ga(3), and two equivalent Ga(1) atoms. In the sixth O site, O(6) is bonded to one Ga(2), one Ga(4), and two equivalent Ga(3) atoms to form distorted OGa4 tetrahedra that share corners with two equivalent O(6)Ga4 tetrahedra, corners with two equivalent O(4)MgTiGa2 trigonal pyramids, edges with two equivalent O(7)Mg2Ga3 square pyramids, and  an edgeedge with one O(4)MgTiGa2 trigonal pyramid. In the seventh O site, O(7) is bonded to two equivalent Mg(1), one Ga(3), and two equivalent Ga(2) atoms to form OMg2Ga3 square pyramids that share corners with two equivalent O(2)Mg2Ti2Ga trigonal bipyramids, edges with two equivalent O(7)Mg2Ga3 square pyramids, edges with two equivalent O(6)Ga4 tetrahedra,  an edgeedge with one O(2)Mg2Ti2Ga trigonal bipyramid, and edges with two equivalent O(4)MgTiGa2 trigonal pyramids. In the eighth O site, O(8) is bonded in a trigonal planar geometry to one Ti(1) and two equivalent Ga(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_MgTi(GaO2)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.006
_cell_length_b   6.684
_cell_length_c   8.244
_cell_angle_alpha   78.345
_cell_angle_beta   79.479
_cell_angle_gamma   76.995
_symmetry_Int_Tables_number   1
_cell_volume   156.431
_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  0.948  0.773  0.332  1.0
  Ti  Ti1  1  0.985  0.019  0.011  1.0
  Ga  Ga2  1  0.697  0.507  0.100  1.0
  Ga  Ga3  1  0.735  0.863  0.667  1.0
  Ga  Ga4  1  0.215  0.185  0.384  1.0
  Ga  Ga5  1  0.455  0.381  0.709  1.0
  O  O6  1  0.888  0.547  0.677  1.0
  O  O7  1  0.523  0.831  0.123  1.0
  O  O8  1  0.445  0.197  0.914  1.0
  O  O9  1  0.823  0.113  0.241  1.0
  O  O10  1  0.116  0.478  0.291  1.0
  O  O11  1  0.627  0.186  0.559  1.0
  O  O12  1  0.326  0.862  0.486  1.0
  O  O13  1  0.153  0.880  0.815  1.0
[/CIF]
.
The crystal structure described by MgTi(GaO2)4 crystallizes in the monoclinic Cm space group. Mg(1) is bonded to one O(4), one O(5), two equivalent O(2), and two equivalent O(7) atoms to form distorted MgO6 pentagonal pyramids that share  a cornercorner with one Ga(3)O6 octahedra, corners with two equivalent Ti(1)O6 octahedra, corners with two equivalent Ga(2)O6 octahedra,  an edgeedge with one Ga(2)O6 octahedra, edges with two equivalent Ga(3)O6 octahedra, edges with two equivalent Mg(1)O6 pentagonal pyramids, and  a faceface with one Ti(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 16-34°. Ti(1) is bonded to one O(4), one O(8), two equivalent O(2), and two equivalent O(3) atoms to form TiO6 octahedra that share corners with two equivalent Ga(2)O6 octahedra, corners with two equivalent Ga(3)O6 octahedra, corners with two equivalent Mg(1)O6 pentagonal pyramids, corners with two equivalent Ga(4)O4 tetrahedra, edges with two equivalent Ti(1)O6 octahedra, and  a faceface with one Mg(1)O6 pentagonal pyramid. The corner-sharing octahedral tilt angles range from 49-54°. There are four inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 3-coordinate geometry to one O(2) and two equivalent O(5) atoms. In the second Ga site, Ga(2) is bonded to one O(1), one O(6), two equivalent O(7), and two equivalent O(8) atoms to form GaO6 octahedra that share corners with two equivalent Ti(1)O6 octahedra, corners with two equivalent Mg(1)O6 pentagonal pyramids, corners with three equivalent Ga(4)O4 tetrahedra, edges with two equivalent Ga(2)O6 octahedra, edges with two equivalent Ga(3)O6 octahedra, and  an edgeedge with one Mg(1)O6 pentagonal pyramid. The corner-sharing octahedral tilt angles are 54°. In the third Ga site, Ga(3) is bonded to one O(5), one O(7), two equivalent O(4), and two equivalent O(6) atoms to form GaO6 octahedra that share corners with two equivalent Ti(1)O6 octahedra,  a cornercorner with one Mg(1)O6 pentagonal pyramid, corners with two equivalent Ga(4)O4 tetrahedra, edges with two equivalent Ga(2)O6 octahedra, edges with two equivalent Ga(3)O6 octahedra, and edges with two equivalent Mg(1)O6 pentagonal pyramids. The corner-sharing octahedral tilt angles are 49°. In the fourth Ga site, Ga(4) is bonded to one O(3), one O(6), and two equivalent O(1) atoms to form GaO4 tetrahedra that share corners with two equivalent Ti(1)O6 octahedra, corners with two equivalent Ga(3)O6 octahedra, corners with three equivalent Ga(2)O6 octahedra, and corners with two equivalent Ga(4)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 53-63°. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a trigonal planar geometry to one Ga(2) and two equivalent Ga(4) atoms. In the second O site, O(2) is bonded to two equivalent Mg(1), two equivalent Ti(1), and one Ga(1) atom to form distorted OMg2Ti2Ga trigonal bipyramids that share corners with two equivalent O(7)Mg2Ga3 square pyramids,  an edgeedge with one O(7)Mg2Ga3 square pyramid, edges with two equivalent O(2)Mg2Ti2Ga trigonal bipyramids, and edges with two equivalent O(4)MgTiGa2 trigonal pyramids. In the third O site, O(3) is bonded in a trigonal planar geometry to two equivalent Ti(1) and one Ga(4) atom. In the fourth O site, O(4) is bonded to one Mg(1), one Ti(1), and two equivalent Ga(3) atoms to form distorted OMgTiGa2 trigonal pyramids that share corners with two equivalent O(6)Ga4 tetrahedra, corners with two equivalent O(4)MgTiGa2 trigonal pyramids, edges with two equivalent O(7)Mg2Ga3 square pyramids,  an edgeedge with one O(6)Ga4 tetrahedra, and edges with two equivalent O(2)Mg2Ti2Ga trigonal bipyramids. In the fifth O site, O(5) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), one Ga(3), and two equivalent Ga(1) atoms. In the sixth O site, O(6) is bonded to one Ga(2), one Ga(4), and two equivalent Ga(3) atoms to form distorted OGa4 tetrahedra that share corners with two equivalent O(6)Ga4 tetrahedra, corners with two equivalent O(4)MgTiGa2 trigonal pyramids, edges with two equivalent O(7)Mg2Ga3 square pyramids, and  an edgeedge with one O(4)MgTiGa2 trigonal pyramid. In the seventh O site, O(7) is bonded to two equivalent Mg(1), one Ga(3), and two equivalent Ga(2) atoms to form OMg2Ga3 square pyramids that share corners with two equivalent O(2)Mg2Ti2Ga trigonal bipyramids, edges with two equivalent O(7)Mg2Ga3 square pyramids, edges with two equivalent O(6)Ga4 tetrahedra,  an edgeedge with one O(2)Mg2Ti2Ga trigonal bipyramid, and edges with two equivalent O(4)MgTiGa2 trigonal pyramids. In the eighth O site, O(8) is bonded in a trigonal planar geometry to one Ti(1) and two equivalent Ga(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_MgTi(GaO2)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.006
_cell_length_b   6.684
_cell_length_c   8.244
_cell_angle_alpha   78.345
_cell_angle_beta   79.479
_cell_angle_gamma   76.995
_symmetry_Int_Tables_number   1
_cell_volume   156.431
_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  0.948  0.773  0.332  1.0
  Ti  Ti1  1  0.985  0.019  0.011  1.0
  Ga  Ga2  1  0.697  0.507  0.100  1.0
  Ga  Ga3  1  0.735  0.863  0.667  1.0
  Ga  Ga4  1  0.215  0.185  0.384  1.0
  Ga  Ga5  1  0.455  0.381  0.709  1.0
  O  O6  1  0.888  0.547  0.677  1.0
  O  O7  1  0.523  0.831  0.123  1.0
  O  O8  1  0.445  0.197  0.914  1.0
  O  O9  1  0.823  0.113  0.241  1.0
  O  O10  1  0.116  0.478  0.291  1.0
  O  O11  1  0.627  0.186  0.559  1.0
  O  O12  1  0.326  0.862  0.486  1.0
  O  O13  1  0.153  0.880  0.815  1.0
[/CIF]
.