The material described by MgLa2Fe2(TeO6)2 is Orthorhombic Perovskite-derived structured and crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(1), one O(10), one O(12), one O(3), one O(5), and one O(8) atom to form MgO6 octahedra that share corners with two equivalent Te(2)O6 octahedra, corners with four equivalent Te(1)O6 octahedra,  a cornercorner with one Fe(2)O6 pentagonal pyramid, and  a faceface with one Fe(2)O6 pentagonal pyramid. The corner-sharing octahedral tilt angles range from 22-36°. There are two inequivalent La sites. In the first La site, La(1) is bonded in a 3-coordinate geometry to one O(10), one O(11), one O(12), one O(4), one O(9), and two equivalent O(6) atoms. In the second La site, La(2) is bonded in a 6-coordinate geometry to one O(1), one O(11), one O(2), one O(7), 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(11), one O(2), one O(4), one O(6), one O(7), and one O(9) atom to form FeO6 octahedra that share corners with two equivalent Te(1)O6 octahedra, corners with four equivalent Te(2)O6 octahedra, and corners with two equivalent Fe(2)O6 pentagonal pyramids. The corner-sharing octahedral tilt angles range from 20-34°. In the second Fe site, Fe(2) is bonded to one O(10), one O(11), one O(12), one O(5), one O(6), and one O(8) atom to form distorted FeO6 pentagonal pyramids that share  a cornercorner with one Mg(1)O6 octahedra, corners with two equivalent Fe(1)O6 octahedra,  an edgeedge with one Te(2)O6 octahedra, edges with two equivalent Te(1)O6 octahedra, and  a faceface with one Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 65-68°. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded to one O(10), one O(3), one O(5), one O(6), one O(7), and one O(8) atom to form TeO6 octahedra that share corners with two equivalent Fe(1)O6 octahedra, corners with four equivalent Mg(1)O6 octahedra, and edges with two equivalent Fe(2)O6 pentagonal pyramids. The corner-sharing octahedral tilt angles range from 26-36°. In the second Te site, Te(2) is bonded to one O(1), one O(11), one O(12), one O(2), one O(4), and one O(9) atom to form TeO6 octahedra that share corners with two equivalent Mg(1)O6 octahedra, corners with four equivalent Fe(1)O6 octahedra, and  an edgeedge with one Fe(2)O6 pentagonal pyramid. The corner-sharing octahedral tilt angles range from 20-34°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Mg(1), one La(2), and one Te(2) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one La(2), one Fe(1), and one Te(2) atom. In the third O site, O(3) is bonded in a distorted bent 150 degrees geometry to one Mg(1) and one Te(1) atom. In the fourth O site, O(4) is bonded in a distorted T-shaped geometry to one La(1), one Fe(1), and one Te(2) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Mg(1), one Fe(2), and one Te(1) atom. In the sixth O site, O(6) is bonded in a 5-coordinate geometry to two equivalent La(1), one Fe(1), one Fe(2), and one Te(1) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one La(2), one Fe(1), and one Te(1) atom. In the eighth O site, O(8) is bonded to one Mg(1), one La(2), one Fe(2), and one Te(1) atom to form a mixture of distorted corner and edge-sharing OLaMgFeTe tetrahedra. In the ninth O site, O(9) is bonded in a distorted rectangular see-saw-like geometry to one La(1), one La(2), one Fe(1), and one Te(2) atom. In the tenth O site, O(10) is bonded to one Mg(1), one La(1), one Fe(2), and one Te(1) atom to form a mixture of distorted corner and edge-sharing OLaMgFeTe tetrahedra. In the eleventh O site, O(11) is bonded in a 5-coordinate geometry to one La(1), one La(2), one Fe(1), one Fe(2), and one Te(2) atom. In the twelfth O site, O(12) is bonded in a distorted see-saw-like geometry to one Mg(1), one La(1), one Fe(2), and one Te(2) atom. is represented by the CIF card [CIF]
data_La2MgFe2(TeO6)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.662
_cell_length_b   5.578
_cell_length_c   7.885
_cell_angle_alpha   89.134
_cell_angle_beta   88.978
_cell_angle_gamma   90.216
_symmetry_Int_Tables_number   1
_cell_volume   248.955
_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  0.044  0.008  0.263  1.0
  La  La1  1  0.563  0.496  0.783  1.0
  Mg  Mg2  1  0.059  0.494  0.528  1.0
  Fe  Fe3  1  0.534  0.002  0.014  1.0
  Fe  Fe4  1  0.630  0.509  0.310  1.0
  Te  Te5  1  0.527  0.999  0.514  1.0
  Te  Te6  1  0.034  0.502  0.016  1.0
  O  O7  1  0.005  0.568  0.778  1.0
  O  O8  1  0.311  0.306  0.988  1.0
  O  O9  1  0.242  0.178  0.540  1.0
  O  O10  1  0.233  0.777  0.052  1.0
  O  O11  1  0.353  0.701  0.462  1.0
  O  O12  1  0.531  0.101  0.274  1.0
  O  O13  1  0.542  0.920  0.752  1.0
  O  O14  1  0.721  0.293  0.539  1.0
  O  O15  1  0.832  0.224  0.994  1.0
  O  O16  1  0.804  0.791  0.465  1.0
  O  O17  1  0.742  0.687  0.072  1.0
  O  O18  1  0.017  0.435  0.264  1.0
[/CIF]
.
The material described by MgLa2Fe2(TeO6)2 is Orthorhombic Perovskite-derived structured and crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(1), one O(10), one O(12), one O(3), one O(5), and one O(8) atom to form MgO6 octahedra that share corners with two equivalent Te(2)O6 octahedra, corners with four equivalent Te(1)O6 octahedra,  a cornercorner with one Fe(2)O6 pentagonal pyramid, and  a faceface with one Fe(2)O6 pentagonal pyramid. The corner-sharing octahedral tilt angles range from 22-36°. There are two inequivalent La sites. In the first La site, La(1) is bonded in a 3-coordinate geometry to one O(10), one O(11), one O(12), one O(4), one O(9), and two equivalent O(6) atoms. In the second La site, La(2) is bonded in a 6-coordinate geometry to one O(1), one O(11), one O(2), one O(7), 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(11), one O(2), one O(4), one O(6), one O(7), and one O(9) atom to form FeO6 octahedra that share corners with two equivalent Te(1)O6 octahedra, corners with four equivalent Te(2)O6 octahedra, and corners with two equivalent Fe(2)O6 pentagonal pyramids. The corner-sharing octahedral tilt angles range from 20-34°. In the second Fe site, Fe(2) is bonded to one O(10), one O(11), one O(12), one O(5), one O(6), and one O(8) atom to form distorted FeO6 pentagonal pyramids that share  a cornercorner with one Mg(1)O6 octahedra, corners with two equivalent Fe(1)O6 octahedra,  an edgeedge with one Te(2)O6 octahedra, edges with two equivalent Te(1)O6 octahedra, and  a faceface with one Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 65-68°. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded to one O(10), one O(3), one O(5), one O(6), one O(7), and one O(8) atom to form TeO6 octahedra that share corners with two equivalent Fe(1)O6 octahedra, corners with four equivalent Mg(1)O6 octahedra, and edges with two equivalent Fe(2)O6 pentagonal pyramids. The corner-sharing octahedral tilt angles range from 26-36°. In the second Te site, Te(2) is bonded to one O(1), one O(11), one O(12), one O(2), one O(4), and one O(9) atom to form TeO6 octahedra that share corners with two equivalent Mg(1)O6 octahedra, corners with four equivalent Fe(1)O6 octahedra, and  an edgeedge with one Fe(2)O6 pentagonal pyramid. The corner-sharing octahedral tilt angles range from 20-34°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Mg(1), one La(2), and one Te(2) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one La(2), one Fe(1), and one Te(2) atom. In the third O site, O(3) is bonded in a distorted bent 150 degrees geometry to one Mg(1) and one Te(1) atom. In the fourth O site, O(4) is bonded in a distorted T-shaped geometry to one La(1), one Fe(1), and one Te(2) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Mg(1), one Fe(2), and one Te(1) atom. In the sixth O site, O(6) is bonded in a 5-coordinate geometry to two equivalent La(1), one Fe(1), one Fe(2), and one Te(1) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one La(2), one Fe(1), and one Te(1) atom. In the eighth O site, O(8) is bonded to one Mg(1), one La(2), one Fe(2), and one Te(1) atom to form a mixture of distorted corner and edge-sharing OLaMgFeTe tetrahedra. In the ninth O site, O(9) is bonded in a distorted rectangular see-saw-like geometry to one La(1), one La(2), one Fe(1), and one Te(2) atom. In the tenth O site, O(10) is bonded to one Mg(1), one La(1), one Fe(2), and one Te(1) atom to form a mixture of distorted corner and edge-sharing OLaMgFeTe tetrahedra. In the eleventh O site, O(11) is bonded in a 5-coordinate geometry to one La(1), one La(2), one Fe(1), one Fe(2), and one Te(2) atom. In the twelfth O site, O(12) is bonded in a distorted see-saw-like geometry to one Mg(1), one La(1), one Fe(2), and one Te(2) atom. is represented by the CIF card [CIF]
data_La2MgFe2(TeO6)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.662
_cell_length_b   5.578
_cell_length_c   7.885
_cell_angle_alpha   89.134
_cell_angle_beta   88.978
_cell_angle_gamma   90.216
_symmetry_Int_Tables_number   1
_cell_volume   248.955
_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  0.044  0.008  0.263  1.0
  La  La1  1  0.563  0.496  0.783  1.0
  Mg  Mg2  1  0.059  0.494  0.528  1.0
  Fe  Fe3  1  0.534  0.002  0.014  1.0
  Fe  Fe4  1  0.630  0.509  0.310  1.0
  Te  Te5  1  0.527  0.999  0.514  1.0
  Te  Te6  1  0.034  0.502  0.016  1.0
  O  O7  1  0.005  0.568  0.778  1.0
  O  O8  1  0.311  0.306  0.988  1.0
  O  O9  1  0.242  0.178  0.540  1.0
  O  O10  1  0.233  0.777  0.052  1.0
  O  O11  1  0.353  0.701  0.462  1.0
  O  O12  1  0.531  0.101  0.274  1.0
  O  O13  1  0.542  0.920  0.752  1.0
  O  O14  1  0.721  0.293  0.539  1.0
  O  O15  1  0.832  0.224  0.994  1.0
  O  O16  1  0.804  0.791  0.465  1.0
  O  O17  1  0.742  0.687  0.072  1.0
  O  O18  1  0.017  0.435  0.264  1.0
[/CIF]
.