The crystal structure described by MgLa2ZnBiO6 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(2), one O(4), one O(5), and one O(6) atom to form distorted MgO4 tetrahedra that share corners with two equivalent La(2)O6 pentagonal pyramids, corners with two equivalent Zn(1)O4 trigonal pyramids, and  an edgeedge with one La(2)O6 pentagonal pyramid. There are two inequivalent La sites. In the first La site, La(1) is bonded in a 6-coordinate geometry to one O(1), 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 to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form distorted LaO6 pentagonal pyramids that share corners with two equivalent Mg(1)O4 tetrahedra, corners with two equivalent Zn(1)O4 trigonal pyramids,  an edgeedge with one Mg(1)O4 tetrahedra, and  an edgeedge with one Zn(1)O4 trigonal pyramid. Zn(1) is bonded to one O(1), one O(3), one O(4), and one O(6) atom to form distorted ZnO4 trigonal pyramids that share corners with two equivalent La(2)O6 pentagonal pyramids, corners with two equivalent Mg(1)O4 tetrahedra, and  an edgeedge with one La(2)O6 pentagonal pyramid. Bi(1) is bonded in a 4-coordinate geometry to one O(1), one O(2), one O(3), and one O(6) atom. There are six inequivalent O sites. In the first O site, O(1) is bonded to one La(1), one La(2), one Zn(1), and one Bi(1) atom to form distorted OLa2ZnBi tetrahedra that share corners with three equivalent O(2)La2MgBi tetrahedra, corners with two equivalent O(6)La2MgZnBi trigonal bipyramids, corners with two equivalent O(3)La2ZnBi trigonal pyramids,  an edgeedge with one O(6)La2MgZnBi trigonal bipyramid, and  an edgeedge with one O(3)La2ZnBi trigonal pyramid. In the second O site, O(2) is bonded to one Mg(1), one La(1), one La(2), and one Bi(1) atom to form distorted OLa2MgBi tetrahedra that share corners with three equivalent O(1)La2ZnBi tetrahedra, corners with two equivalent O(6)La2MgZnBi trigonal bipyramids, corners with three equivalent O(3)La2ZnBi trigonal pyramids, and  an edgeedge with one O(6)La2MgZnBi trigonal bipyramid. In the third O site, O(3) is bonded to one La(1), one La(2), one Zn(1), and one Bi(1) atom to form distorted OLa2ZnBi trigonal pyramids that share corners with two equivalent O(1)La2ZnBi tetrahedra, corners with three equivalent O(2)La2MgBi tetrahedra, corners with two equivalent O(6)La2MgZnBi trigonal bipyramids,  an edgeedge with one O(1)La2ZnBi tetrahedra, and  an edgeedge with one O(6)La2MgZnBi trigonal bipyramid. In the fourth O site, O(4) is bonded in a rectangular see-saw-like geometry to one Mg(1), one La(1), one La(2), and one Zn(1) atom. In the fifth O site, O(5) is bonded in a distorted trigonal non-coplanar geometry to one Mg(1), one La(1), and one La(2) atom. In the sixth O site, O(6) is bonded to one Mg(1), one La(1), one La(2), one Zn(1), and one Bi(1) atom to form distorted OLa2MgZnBi trigonal bipyramids that share corners with two equivalent O(2)La2MgBi tetrahedra, corners with two equivalent O(1)La2ZnBi tetrahedra, corners with two equivalent O(3)La2ZnBi trigonal pyramids,  an edgeedge with one O(2)La2MgBi tetrahedra,  an edgeedge with one O(1)La2ZnBi tetrahedra, and  an edgeedge with one O(3)La2ZnBi trigonal pyramid. is represented by the CIF card [CIF]
data_La2MgZnBiO6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.628
_cell_length_b   6.885
_cell_length_c   5.924
_cell_angle_alpha   62.200
_cell_angle_beta   62.692
_cell_angle_gamma   56.038
_symmetry_Int_Tables_number   1
_cell_volume   190.947
_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  0.731  0.654  0.677  1.0
  La  La1  1  0.345  0.297  0.260  1.0
  Mg  Mg2  1  0.864  0.176  0.552  1.0
  Zn  Zn3  1  0.332  0.608  0.566  1.0
  Bi  Bi4  1  0.099  0.017  0.032  1.0
  O  O5  1  0.403  0.655  0.156  1.0
  O  O6  1  0.766  0.035  0.416  1.0
  O  O7  1  0.143  0.421  0.681  1.0
  O  O8  1  0.575  0.362  0.802  1.0
  O  O9  1  0.923  0.476  0.334  1.0
  O  O10  1  0.246  0.934  0.575  1.0
[/CIF]
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The crystal structure described by MgLa2ZnBiO6 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(2), one O(4), one O(5), and one O(6) atom to form distorted MgO4 tetrahedra that share corners with two equivalent La(2)O6 pentagonal pyramids, corners with two equivalent Zn(1)O4 trigonal pyramids, and  an edgeedge with one La(2)O6 pentagonal pyramid. There are two inequivalent La sites. In the first La site, La(1) is bonded in a 6-coordinate geometry to one O(1), 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 to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form distorted LaO6 pentagonal pyramids that share corners with two equivalent Mg(1)O4 tetrahedra, corners with two equivalent Zn(1)O4 trigonal pyramids,  an edgeedge with one Mg(1)O4 tetrahedra, and  an edgeedge with one Zn(1)O4 trigonal pyramid. Zn(1) is bonded to one O(1), one O(3), one O(4), and one O(6) atom to form distorted ZnO4 trigonal pyramids that share corners with two equivalent La(2)O6 pentagonal pyramids, corners with two equivalent Mg(1)O4 tetrahedra, and  an edgeedge with one La(2)O6 pentagonal pyramid. Bi(1) is bonded in a 4-coordinate geometry to one O(1), one O(2), one O(3), and one O(6) atom. There are six inequivalent O sites. In the first O site, O(1) is bonded to one La(1), one La(2), one Zn(1), and one Bi(1) atom to form distorted OLa2ZnBi tetrahedra that share corners with three equivalent O(2)La2MgBi tetrahedra, corners with two equivalent O(6)La2MgZnBi trigonal bipyramids, corners with two equivalent O(3)La2ZnBi trigonal pyramids,  an edgeedge with one O(6)La2MgZnBi trigonal bipyramid, and  an edgeedge with one O(3)La2ZnBi trigonal pyramid. In the second O site, O(2) is bonded to one Mg(1), one La(1), one La(2), and one Bi(1) atom to form distorted OLa2MgBi tetrahedra that share corners with three equivalent O(1)La2ZnBi tetrahedra, corners with two equivalent O(6)La2MgZnBi trigonal bipyramids, corners with three equivalent O(3)La2ZnBi trigonal pyramids, and  an edgeedge with one O(6)La2MgZnBi trigonal bipyramid. In the third O site, O(3) is bonded to one La(1), one La(2), one Zn(1), and one Bi(1) atom to form distorted OLa2ZnBi trigonal pyramids that share corners with two equivalent O(1)La2ZnBi tetrahedra, corners with three equivalent O(2)La2MgBi tetrahedra, corners with two equivalent O(6)La2MgZnBi trigonal bipyramids,  an edgeedge with one O(1)La2ZnBi tetrahedra, and  an edgeedge with one O(6)La2MgZnBi trigonal bipyramid. In the fourth O site, O(4) is bonded in a rectangular see-saw-like geometry to one Mg(1), one La(1), one La(2), and one Zn(1) atom. In the fifth O site, O(5) is bonded in a distorted trigonal non-coplanar geometry to one Mg(1), one La(1), and one La(2) atom. In the sixth O site, O(6) is bonded to one Mg(1), one La(1), one La(2), one Zn(1), and one Bi(1) atom to form distorted OLa2MgZnBi trigonal bipyramids that share corners with two equivalent O(2)La2MgBi tetrahedra, corners with two equivalent O(1)La2ZnBi tetrahedra, corners with two equivalent O(3)La2ZnBi trigonal pyramids,  an edgeedge with one O(2)La2MgBi tetrahedra,  an edgeedge with one O(1)La2ZnBi tetrahedra, and  an edgeedge with one O(3)La2ZnBi trigonal pyramid. is represented by the CIF card [CIF]
data_La2MgZnBiO6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.628
_cell_length_b   6.885
_cell_length_c   5.924
_cell_angle_alpha   62.200
_cell_angle_beta   62.692
_cell_angle_gamma   56.038
_symmetry_Int_Tables_number   1
_cell_volume   190.947
_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  0.731  0.654  0.677  1.0
  La  La1  1  0.345  0.297  0.260  1.0
  Mg  Mg2  1  0.864  0.176  0.552  1.0
  Zn  Zn3  1  0.332  0.608  0.566  1.0
  Bi  Bi4  1  0.099  0.017  0.032  1.0
  O  O5  1  0.403  0.655  0.156  1.0
  O  O6  1  0.766  0.035  0.416  1.0
  O  O7  1  0.143  0.421  0.681  1.0
  O  O8  1  0.575  0.362  0.802  1.0
  O  O9  1  0.923  0.476  0.334  1.0
  O  O10  1  0.246  0.934  0.575  1.0
[/CIF]
.