The material described by MgLa2Fe2(WO6)2 crystallizes in the triclinic P1 space group. Mg(1) is bonded in a 6-coordinate geometry to one O(11), one O(12), one O(4), one O(5), one O(6), and one O(9) atom. There are two inequivalent La sites. In the first La site, La(1) is bonded in a 8-coordinate geometry to one O(10), one O(11), one O(12), one O(2), one O(3), one O(4), one O(5), and one O(6) atom. In the second La site, La(2) is bonded in a 8-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), one O(7), one O(8), and one O(9) atom. There are two inequivalent W sites. In the first W site, W(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 WO6 octahedra that share corners with two equivalent Fe(1)O6 octahedra and corners with four equivalent Fe(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 23-39°. In the second W site, W(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 WO6 octahedra that share corners with two equivalent Fe(2)O6 octahedra and corners with four equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 24-34°. 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 W(1)O6 octahedra and corners with four equivalent W(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 24-36°. In the second Fe site, Fe(2) 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 FeO6 octahedra that share corners with two equivalent W(2)O6 octahedra and corners with four equivalent W(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 23-39°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a distorted T-shaped geometry to one La(2), one W(2), and one Fe(2) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one La(1), one La(2), one W(2), and one Fe(1) atom. In the third O site, O(3) is bonded in a distorted rectangular see-saw-like geometry to one La(1), one La(2), one W(1), and one Fe(2) atom. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to one Mg(1), one La(1), one La(2), one W(2), and one Fe(1) atom. In the fifth O site, O(5) is bonded in a 5-coordinate geometry to one Mg(1), one La(1), one La(2), one W(1), and one Fe(2) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Mg(1), one La(1), one W(1), and one Fe(1) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one La(2), one W(1), and one Fe(1) atom. In the eighth O site, O(8) is bonded in a distorted trigonal non-coplanar geometry to one La(2), one W(1), and one Fe(2) atom. In the ninth O site, O(9) is bonded to one Mg(1), one La(2), one W(2), and one Fe(1) atom to form a mixture of distorted edge and corner-sharing OLaMgFeW trigonal pyramids. In the tenth O site, O(10) is bonded in a 3-coordinate geometry to one La(1), one W(1), and one Fe(2) atom. In the eleventh O site, O(11) is bonded to one Mg(1), one La(1), one W(2), and one Fe(1) atom to form a mixture of distorted edge and corner-sharing OLaMgFeW tetrahedra. In the twelfth O site, O(12) is bonded to one Mg(1), one La(1), one W(2), and one Fe(2) atom to form a mixture of distorted edge and corner-sharing OLaMgFeW tetrahedra. is represented by the CIF file [CIF]
data_La2MgFe2(WO6)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.682
_cell_length_b   5.478
_cell_length_c   7.885
_cell_angle_alpha   90.066
_cell_angle_beta   90.312
_cell_angle_gamma   88.498
_symmetry_Int_Tables_number   1
_cell_volume   245.326
_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  0.053  0.985  0.246  1.0
  La  La1  1  0.443  0.489  0.749  1.0
  Mg  Mg2  1  0.547  0.507  0.221  1.0
  Fe  Fe3  1  0.505  0.004  1.000  1.0
  Fe  Fe4  1  0.997  0.497  0.505  1.0
  W  W5  1  0.518  0.005  0.501  1.0
  W  W6  1  0.987  0.493  0.998  1.0
  O  O7  1  0.015  0.572  0.766  1.0
  O  O8  1  0.203  0.198  0.974  1.0
  O  O9  1  0.229  0.196  0.532  1.0
  O  O10  1  0.291  0.686  0.060  1.0
  O  O11  1  0.339  0.711  0.432  1.0
  O  O12  1  0.491  0.121  0.257  1.0
  O  O13  1  0.511  0.916  0.741  1.0
  O  O14  1  0.695  0.288  0.546  1.0
  O  O15  1  0.681  0.310  0.965  1.0
  O  O16  1  0.796  0.809  0.452  1.0
  O  O17  1  0.765  0.779  0.065  1.0
  O  O18  1  0.946  0.412  0.241  1.0
[/CIF]
.
The material described by MgLa2Fe2(WO6)2 crystallizes in the triclinic P1 space group. Mg(1) is bonded in a 6-coordinate geometry to one O(11), one O(12), one O(4), one O(5), one O(6), and one O(9) atom. There are two inequivalent La sites. In the first La site, La(1) is bonded in a 8-coordinate geometry to one O(10), one O(11), one O(12), one O(2), one O(3), one O(4), one O(5), and one O(6) atom. In the second La site, La(2) is bonded in a 8-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), one O(7), one O(8), and one O(9) atom. There are two inequivalent W sites. In the first W site, W(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 WO6 octahedra that share corners with two equivalent Fe(1)O6 octahedra and corners with four equivalent Fe(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 23-39°. In the second W site, W(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 WO6 octahedra that share corners with two equivalent Fe(2)O6 octahedra and corners with four equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 24-34°. 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 W(1)O6 octahedra and corners with four equivalent W(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 24-36°. In the second Fe site, Fe(2) 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 FeO6 octahedra that share corners with two equivalent W(2)O6 octahedra and corners with four equivalent W(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 23-39°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a distorted T-shaped geometry to one La(2), one W(2), and one Fe(2) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one La(1), one La(2), one W(2), and one Fe(1) atom. In the third O site, O(3) is bonded in a distorted rectangular see-saw-like geometry to one La(1), one La(2), one W(1), and one Fe(2) atom. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to one Mg(1), one La(1), one La(2), one W(2), and one Fe(1) atom. In the fifth O site, O(5) is bonded in a 5-coordinate geometry to one Mg(1), one La(1), one La(2), one W(1), and one Fe(2) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Mg(1), one La(1), one W(1), and one Fe(1) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one La(2), one W(1), and one Fe(1) atom. In the eighth O site, O(8) is bonded in a distorted trigonal non-coplanar geometry to one La(2), one W(1), and one Fe(2) atom. In the ninth O site, O(9) is bonded to one Mg(1), one La(2), one W(2), and one Fe(1) atom to form a mixture of distorted edge and corner-sharing OLaMgFeW trigonal pyramids. In the tenth O site, O(10) is bonded in a 3-coordinate geometry to one La(1), one W(1), and one Fe(2) atom. In the eleventh O site, O(11) is bonded to one Mg(1), one La(1), one W(2), and one Fe(1) atom to form a mixture of distorted edge and corner-sharing OLaMgFeW tetrahedra. In the twelfth O site, O(12) is bonded to one Mg(1), one La(1), one W(2), and one Fe(2) atom to form a mixture of distorted edge and corner-sharing OLaMgFeW tetrahedra. is represented by the CIF file [CIF]
data_La2MgFe2(WO6)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.682
_cell_length_b   5.478
_cell_length_c   7.885
_cell_angle_alpha   90.066
_cell_angle_beta   90.312
_cell_angle_gamma   88.498
_symmetry_Int_Tables_number   1
_cell_volume   245.326
_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  0.053  0.985  0.246  1.0
  La  La1  1  0.443  0.489  0.749  1.0
  Mg  Mg2  1  0.547  0.507  0.221  1.0
  Fe  Fe3  1  0.505  0.004  1.000  1.0
  Fe  Fe4  1  0.997  0.497  0.505  1.0
  W  W5  1  0.518  0.005  0.501  1.0
  W  W6  1  0.987  0.493  0.998  1.0
  O  O7  1  0.015  0.572  0.766  1.0
  O  O8  1  0.203  0.198  0.974  1.0
  O  O9  1  0.229  0.196  0.532  1.0
  O  O10  1  0.291  0.686  0.060  1.0
  O  O11  1  0.339  0.711  0.432  1.0
  O  O12  1  0.491  0.121  0.257  1.0
  O  O13  1  0.511  0.916  0.741  1.0
  O  O14  1  0.695  0.288  0.546  1.0
  O  O15  1  0.681  0.310  0.965  1.0
  O  O16  1  0.796  0.809  0.452  1.0
  O  O17  1  0.765  0.779  0.065  1.0
  O  O18  1  0.946  0.412  0.241  1.0
[/CIF]
.