The crystal structure described by MgLa4Ga2(FeO6)2 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(11), one O(2), one O(6), and one O(7) atom to form MgO4 tetrahedra that share  a cornercorner with one Fe(1)O6 octahedra and corners with two equivalent Ga(1)O4 tetrahedra. The corner-sharing octahedral tilt angles are 33°. There are four inequivalent La sites. In the first La site, La(1) is bonded in a 7-coordinate geometry to one O(1), one O(11), one O(12), one O(5), one O(9), and two equivalent O(2) atoms. In the second La site, La(2) is bonded in a 4-coordinate geometry to one O(1), one O(12), one O(2), one O(5), one O(6), and one O(8) atom. In the third La site, La(3) is bonded in a 7-coordinate geometry to one O(10), one O(3), one O(4), one O(5), one O(7), one O(8), and one O(9) atom. In the fourth La site, La(4) is bonded in a 6-coordinate geometry to one O(10), one O(12), one O(3), one O(4), one O(5), one O(8), and one O(9) atom. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(12), one O(2), one O(4), one O(5), one O(8), and one O(9) atom to form distorted FeO6 octahedra that share corners with four equivalent Ga(2)O6 octahedra,  a cornercorner with one Mg(1)O4 tetrahedra, and  a cornercorner with one Ga(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 16-30°. In the second Fe site, Fe(2) is bonded in a rectangular see-saw-like geometry to one O(10), one O(3), one O(6), and one O(7) atom. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded to one O(10), one O(11), one O(4), and one O(7) atom to form GaO4 tetrahedra that share  a cornercorner with one Fe(1)O6 octahedra and corners with two equivalent Mg(1)O4 tetrahedra. The corner-sharing octahedral tilt angles are 45°. In the second Ga site, Ga(2) is bonded to one O(1), one O(12), one O(3), one O(5), one O(8), and one O(9) atom to form GaO6 octahedra that share corners with four equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 16-30°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one La(1), one La(2), and one Ga(2) atom. In the second O site, O(2) is bonded in a 5-coordinate geometry to one Mg(1), one La(2), two equivalent La(1), and one Fe(1) atom. In the third O site, O(3) is bonded to one La(3), one La(4), one Fe(2), and one Ga(2) atom to form distorted OLa2GaFe tetrahedra that share corners with two equivalent O(7)LaMgGaFe tetrahedra and corners with three equivalent O(10)La2GaFe trigonal pyramids. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one La(3), one La(4), one Fe(1), and one Ga(1) atom. In the fifth O site, O(5) is bonded in a 6-coordinate geometry to one La(1), one La(2), one La(3), one La(4), one Fe(1), and one Ga(2) atom. In the sixth O site, O(6) is bonded in a trigonal planar geometry to one Mg(1), one La(2), and one Fe(2) atom. In the seventh O site, O(7) is bonded to one Mg(1), one La(3), one Fe(2), and one Ga(1) atom to form a mixture of edge and corner-sharing OLaMgGaFe tetrahedra. In the eighth O site, O(8) is bonded in a 5-coordinate geometry to one La(2), one La(3), one La(4), one Fe(1), and one Ga(2) atom. In the ninth O site, O(9) is bonded in a 5-coordinate geometry to one La(1), one La(3), one La(4), one Fe(1), and one Ga(2) atom. In the tenth O site, O(10) is bonded to one La(3), one La(4), one Fe(2), and one Ga(1) atom to form distorted OLa2GaFe trigonal pyramids that share  a cornercorner with one O(7)LaMgGaFe tetrahedra, corners with three equivalent O(3)La2GaFe tetrahedra, and  an edgeedge with one O(7)LaMgGaFe tetrahedra. In the eleventh O site, O(11) is bonded in a distorted trigonal planar geometry to one Mg(1), one La(1), and one Ga(1) atom. In the twelfth O site, O(12) is bonded in a 5-coordinate geometry to one La(1), one La(2), one La(4), one Fe(1), and one Ga(2) atom. is represented by the CIF card [CIF]
data_La4MgGa2(FeO6)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.539
_cell_length_b   5.787
_cell_length_c   10.003
_cell_angle_alpha   89.134
_cell_angle_beta   104.629
_cell_angle_gamma   91.254
_symmetry_Int_Tables_number   1
_cell_volume   310.117
_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
  La  La0  1  0.610  0.513  0.678  1.0
  La  La1  1  0.092  0.982  0.694  1.0
  La  La2  1  0.495  0.509  0.293  1.0
  La  La3  1  0.980  0.023  0.308  1.0
  Mg  Mg4  1  0.283  0.457  0.911  1.0
  Ga  Ga5  1  0.863  0.571  0.073  1.0
  Ga  Ga6  1  0.537  0.999  0.492  1.0
  Fe  Fe7  1  0.046  0.500  0.495  1.0
  Fe  Fe8  1  0.369  0.966  0.074  1.0
  O  O9  1  0.655  0.908  0.688  1.0
  O  O10  1  0.138  0.574  0.720  1.0
  O  O11  1  0.401  0.096  0.271  1.0
  O  O12  1  0.894  0.404  0.242  1.0
  O  O13  1  0.764  0.275  0.508  1.0
  O  O14  1  0.202  0.128  0.909  1.0
  O  O15  1  0.195  0.623  0.066  1.0
  O  O16  1  0.794  0.786  0.452  1.0
  O  O17  1  0.307  0.715  0.449  1.0
  O  O18  1  0.703  0.815  0.134  1.0
  O  O19  1  0.646  0.468  0.914  1.0
  O  O20  1  0.277  0.201  0.530  1.0
[/CIF]
.
The crystal structure described by MgLa4Ga2(FeO6)2 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(11), one O(2), one O(6), and one O(7) atom to form MgO4 tetrahedra that share  a cornercorner with one Fe(1)O6 octahedra and corners with two equivalent Ga(1)O4 tetrahedra. The corner-sharing octahedral tilt angles are 33°. There are four inequivalent La sites. In the first La site, La(1) is bonded in a 7-coordinate geometry to one O(1), one O(11), one O(12), one O(5), one O(9), and two equivalent O(2) atoms. In the second La site, La(2) is bonded in a 4-coordinate geometry to one O(1), one O(12), one O(2), one O(5), one O(6), and one O(8) atom. In the third La site, La(3) is bonded in a 7-coordinate geometry to one O(10), one O(3), one O(4), one O(5), one O(7), one O(8), and one O(9) atom. In the fourth La site, La(4) is bonded in a 6-coordinate geometry to one O(10), one O(12), one O(3), one O(4), one O(5), one O(8), and one O(9) atom. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(12), one O(2), one O(4), one O(5), one O(8), and one O(9) atom to form distorted FeO6 octahedra that share corners with four equivalent Ga(2)O6 octahedra,  a cornercorner with one Mg(1)O4 tetrahedra, and  a cornercorner with one Ga(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 16-30°. In the second Fe site, Fe(2) is bonded in a rectangular see-saw-like geometry to one O(10), one O(3), one O(6), and one O(7) atom. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded to one O(10), one O(11), one O(4), and one O(7) atom to form GaO4 tetrahedra that share  a cornercorner with one Fe(1)O6 octahedra and corners with two equivalent Mg(1)O4 tetrahedra. The corner-sharing octahedral tilt angles are 45°. In the second Ga site, Ga(2) is bonded to one O(1), one O(12), one O(3), one O(5), one O(8), and one O(9) atom to form GaO6 octahedra that share corners with four equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 16-30°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one La(1), one La(2), and one Ga(2) atom. In the second O site, O(2) is bonded in a 5-coordinate geometry to one Mg(1), one La(2), two equivalent La(1), and one Fe(1) atom. In the third O site, O(3) is bonded to one La(3), one La(4), one Fe(2), and one Ga(2) atom to form distorted OLa2GaFe tetrahedra that share corners with two equivalent O(7)LaMgGaFe tetrahedra and corners with three equivalent O(10)La2GaFe trigonal pyramids. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one La(3), one La(4), one Fe(1), and one Ga(1) atom. In the fifth O site, O(5) is bonded in a 6-coordinate geometry to one La(1), one La(2), one La(3), one La(4), one Fe(1), and one Ga(2) atom. In the sixth O site, O(6) is bonded in a trigonal planar geometry to one Mg(1), one La(2), and one Fe(2) atom. In the seventh O site, O(7) is bonded to one Mg(1), one La(3), one Fe(2), and one Ga(1) atom to form a mixture of edge and corner-sharing OLaMgGaFe tetrahedra. In the eighth O site, O(8) is bonded in a 5-coordinate geometry to one La(2), one La(3), one La(4), one Fe(1), and one Ga(2) atom. In the ninth O site, O(9) is bonded in a 5-coordinate geometry to one La(1), one La(3), one La(4), one Fe(1), and one Ga(2) atom. In the tenth O site, O(10) is bonded to one La(3), one La(4), one Fe(2), and one Ga(1) atom to form distorted OLa2GaFe trigonal pyramids that share  a cornercorner with one O(7)LaMgGaFe tetrahedra, corners with three equivalent O(3)La2GaFe tetrahedra, and  an edgeedge with one O(7)LaMgGaFe tetrahedra. In the eleventh O site, O(11) is bonded in a distorted trigonal planar geometry to one Mg(1), one La(1), and one Ga(1) atom. In the twelfth O site, O(12) is bonded in a 5-coordinate geometry to one La(1), one La(2), one La(4), one Fe(1), and one Ga(2) atom. is represented by the CIF card [CIF]
data_La4MgGa2(FeO6)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.539
_cell_length_b   5.787
_cell_length_c   10.003
_cell_angle_alpha   89.134
_cell_angle_beta   104.629
_cell_angle_gamma   91.254
_symmetry_Int_Tables_number   1
_cell_volume   310.117
_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
  La  La0  1  0.610  0.513  0.678  1.0
  La  La1  1  0.092  0.982  0.694  1.0
  La  La2  1  0.495  0.509  0.293  1.0
  La  La3  1  0.980  0.023  0.308  1.0
  Mg  Mg4  1  0.283  0.457  0.911  1.0
  Ga  Ga5  1  0.863  0.571  0.073  1.0
  Ga  Ga6  1  0.537  0.999  0.492  1.0
  Fe  Fe7  1  0.046  0.500  0.495  1.0
  Fe  Fe8  1  0.369  0.966  0.074  1.0
  O  O9  1  0.655  0.908  0.688  1.0
  O  O10  1  0.138  0.574  0.720  1.0
  O  O11  1  0.401  0.096  0.271  1.0
  O  O12  1  0.894  0.404  0.242  1.0
  O  O13  1  0.764  0.275  0.508  1.0
  O  O14  1  0.202  0.128  0.909  1.0
  O  O15  1  0.195  0.623  0.066  1.0
  O  O16  1  0.794  0.786  0.452  1.0
  O  O17  1  0.307  0.715  0.449  1.0
  O  O18  1  0.703  0.815  0.134  1.0
  O  O19  1  0.646  0.468  0.914  1.0
  O  O20  1  0.277  0.201  0.530  1.0
[/CIF]
.