The compound described by Na2La2PtO6 crystallizes in the monoclinic C2 space group. There are three inequivalent Na sites. In the first Na site, Na(1) is bonded in a 6-coordinate geometry to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms. In the second Na site, Na(2) is bonded in a 6-coordinate geometry to two equivalent O(4), two equivalent O(5), and two equivalent O(6) atoms. In the third Na site, Na(3) is bonded in a 8-coordinate geometry to one O(1), one O(2), one O(4), one O(6), two equivalent O(3), and two equivalent O(5) atoms. There are three inequivalent La sites. In the first La site, La(1) is bonded in a 8-coordinate geometry to one O(1), one O(3), one O(5), one O(6), two equivalent O(2), and two equivalent O(4) atoms. In the second La site, La(2) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(3), two equivalent O(5), and two equivalent O(6) atoms. In the third La site, La(3) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(2), two equivalent O(4), and two equivalent O(6) atoms. Pt(1) is bonded in an octahedral geometry to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom. There are six inequivalent O sites. In the first O site, O(1) is bonded in a 6-coordinate geometry to one Na(1), one Na(3), one La(1), one La(2), one La(3), and one Pt(1) atom. In the second O site, O(2) is bonded to one Na(1), one Na(3), one La(3), two equivalent La(1), and one Pt(1) atom to form distorted ONa2La3Pt octahedra that share  a cornercorner with one O(2)Na2La3Pt octahedra,  a cornercorner with one O(4)Na2La3Pt octahedra, corners with two equivalent O(3)Na3La2Pt octahedra, corners with three equivalent O(6)Na2La3Pt octahedra, corners with three equivalent O(5)Na3La2Pt octahedra,  an edgeedge with one O(3)Na3La2Pt octahedra,  an edgeedge with one O(5)Na3La2Pt octahedra, edges with two equivalent O(4)Na2La3Pt octahedra,  a faceface with one O(2)Na2La3Pt octahedra,  a faceface with one O(4)Na2La3Pt octahedra,  a faceface with one O(6)Na2La3Pt octahedra, and  a faceface with one O(3)Na3La2Pt octahedra. The corner-sharing octahedral tilt angles range from 3-64°. In the third O site, O(3) is bonded to one Na(1), two equivalent Na(3), one La(1), one La(2), and one Pt(1) atom to form distorted ONa3La2Pt octahedra that share  a cornercorner with one O(5)Na3La2Pt octahedra, corners with two equivalent O(2)Na2La3Pt octahedra, corners with three equivalent O(4)Na2La3Pt octahedra, corners with three equivalent O(6)Na2La3Pt octahedra, corners with four equivalent O(3)Na3La2Pt octahedra,  an edgeedge with one O(2)Na2La3Pt octahedra,  an edgeedge with one O(4)Na2La3Pt octahedra, edges with two equivalent O(5)Na3La2Pt octahedra,  a faceface with one O(2)Na2La3Pt octahedra,  a faceface with one O(6)Na2La3Pt octahedra, and  a faceface with one O(5)Na3La2Pt octahedra. The corner-sharing octahedral tilt angles range from 1-67°. In the fourth O site, O(4) is bonded to one Na(2), one Na(3), one La(3), two equivalent La(1), and one Pt(1) atom to form distorted ONa2La3Pt octahedra that share  a cornercorner with one O(2)Na2La3Pt octahedra, corners with two equivalent O(6)Na2La3Pt octahedra, corners with two equivalent O(5)Na3La2Pt octahedra, corners with three equivalent O(3)Na3La2Pt octahedra, corners with four equivalent O(4)Na2La3Pt octahedra,  an edgeedge with one O(3)Na3La2Pt octahedra,  an edgeedge with one O(5)Na3La2Pt octahedra, edges with two equivalent O(2)Na2La3Pt octahedra,  a faceface with one O(2)Na2La3Pt octahedra,  a faceface with one O(5)Na3La2Pt octahedra, and faces with two equivalent O(6)Na2La3Pt octahedra. The corner-sharing octahedral tilt angles range from 1-56°. In the fifth O site, O(5) is bonded to one Na(2), two equivalent Na(3), one La(1), one La(2), and one Pt(1) atom to form ONa3La2Pt octahedra that share  a cornercorner with one O(3)Na3La2Pt octahedra,  a cornercorner with one O(5)Na3La2Pt octahedra, corners with two equivalent O(4)Na2La3Pt octahedra, corners with three equivalent O(2)Na2La3Pt octahedra, corners with five equivalent O(6)Na2La3Pt octahedra,  an edgeedge with one O(2)Na2La3Pt octahedra,  an edgeedge with one O(4)Na2La3Pt octahedra, edges with two equivalent O(3)Na3La2Pt octahedra,  a faceface with one O(4)Na2La3Pt octahedra,  a faceface with one O(6)Na2La3Pt octahedra,  a faceface with one O(3)Na3La2Pt octahedra, and  a faceface with one O(5)Na3La2Pt octahedra. The corner-sharing octahedral tilt angles range from 3-64°. In the sixth O site, O(6) is bonded to one Na(2), one Na(3), one La(1), one La(2), one La(3), and one Pt(1) atom to form distorted ONa2La3Pt octahedra that share  a cornercorner with one O(6)Na2La3Pt octahedra, corners with two equivalent O(4)Na2La3Pt octahedra, corners with three equivalent O(2)Na2La3Pt octahedra, corners with three equivalent O(3)Na3La2Pt octahedra, corners with five equivalent O(5)Na3La2Pt octahedra,  an edgeedge with one O(6)Na2La3Pt octahedra,  a faceface with one O(2)Na2La3Pt octahedra,  a faceface with one O(3)Na3La2Pt octahedra,  a faceface with one O(5)Na3La2Pt octahedra, and faces with two equivalent O(4)Na2La3Pt octahedra. The corner-sharing octahedral tilt angles range from 19-67°. is represented by the CIF file [CIF]
data_Na2La2PtO6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.722
_cell_length_b   6.722
_cell_length_c   6.754
_cell_angle_alpha   89.069
_cell_angle_beta   89.069
_cell_angle_gamma   89.522
_symmetry_Int_Tables_number   1
_cell_volume   305.065
_cell_formula_units_Z   2
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
  Na  Na0  1  0.747  0.253  0.000  1.0
  Na  Na1  1  0.257  0.743  0.500  1.0
  Na  Na2  1  0.252  0.393  0.139  1.0
  Na  Na3  1  0.607  0.748  0.861  1.0
  La  La4  1  0.741  0.611  0.349  1.0
  La  La5  1  0.389  0.259  0.651  1.0
  La  La6  1  0.123  0.877  0.000  1.0
  La  La7  1  0.892  0.108  0.500  1.0
  Pt  Pt8  1  0.500  0.006  0.246  1.0
  Pt  Pt9  1  0.994  0.500  0.754  1.0
  O  O10  1  0.800  0.949  0.183  1.0
  O  O11  1  0.586  0.293  0.313  1.0
  O  O12  1  0.440  0.076  0.952  1.0
  O  O13  1  0.068  0.438  0.466  1.0
  O  O14  1  0.282  0.575  0.806  1.0
  O  O15  1  0.948  0.792  0.672  1.0
  O  O16  1  0.208  0.052  0.328  1.0
  O  O17  1  0.425  0.718  0.194  1.0
  O  O18  1  0.562  0.932  0.534  1.0
  O  O19  1  0.924  0.560  0.048  1.0
  O  O20  1  0.707  0.414  0.687  1.0
  O  O21  1  0.051  0.200  0.817  1.0
[/CIF]
.
The compound described by Na2La2PtO6 crystallizes in the monoclinic C2 space group. There are three inequivalent Na sites. In the first Na site, Na(1) is bonded in a 6-coordinate geometry to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms. In the second Na site, Na(2) is bonded in a 6-coordinate geometry to two equivalent O(4), two equivalent O(5), and two equivalent O(6) atoms. In the third Na site, Na(3) is bonded in a 8-coordinate geometry to one O(1), one O(2), one O(4), one O(6), two equivalent O(3), and two equivalent O(5) atoms. There are three inequivalent La sites. In the first La site, La(1) is bonded in a 8-coordinate geometry to one O(1), one O(3), one O(5), one O(6), two equivalent O(2), and two equivalent O(4) atoms. In the second La site, La(2) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(3), two equivalent O(5), and two equivalent O(6) atoms. In the third La site, La(3) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(2), two equivalent O(4), and two equivalent O(6) atoms. Pt(1) is bonded in an octahedral geometry to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom. There are six inequivalent O sites. In the first O site, O(1) is bonded in a 6-coordinate geometry to one Na(1), one Na(3), one La(1), one La(2), one La(3), and one Pt(1) atom. In the second O site, O(2) is bonded to one Na(1), one Na(3), one La(3), two equivalent La(1), and one Pt(1) atom to form distorted ONa2La3Pt octahedra that share  a cornercorner with one O(2)Na2La3Pt octahedra,  a cornercorner with one O(4)Na2La3Pt octahedra, corners with two equivalent O(3)Na3La2Pt octahedra, corners with three equivalent O(6)Na2La3Pt octahedra, corners with three equivalent O(5)Na3La2Pt octahedra,  an edgeedge with one O(3)Na3La2Pt octahedra,  an edgeedge with one O(5)Na3La2Pt octahedra, edges with two equivalent O(4)Na2La3Pt octahedra,  a faceface with one O(2)Na2La3Pt octahedra,  a faceface with one O(4)Na2La3Pt octahedra,  a faceface with one O(6)Na2La3Pt octahedra, and  a faceface with one O(3)Na3La2Pt octahedra. The corner-sharing octahedral tilt angles range from 3-64°. In the third O site, O(3) is bonded to one Na(1), two equivalent Na(3), one La(1), one La(2), and one Pt(1) atom to form distorted ONa3La2Pt octahedra that share  a cornercorner with one O(5)Na3La2Pt octahedra, corners with two equivalent O(2)Na2La3Pt octahedra, corners with three equivalent O(4)Na2La3Pt octahedra, corners with three equivalent O(6)Na2La3Pt octahedra, corners with four equivalent O(3)Na3La2Pt octahedra,  an edgeedge with one O(2)Na2La3Pt octahedra,  an edgeedge with one O(4)Na2La3Pt octahedra, edges with two equivalent O(5)Na3La2Pt octahedra,  a faceface with one O(2)Na2La3Pt octahedra,  a faceface with one O(6)Na2La3Pt octahedra, and  a faceface with one O(5)Na3La2Pt octahedra. The corner-sharing octahedral tilt angles range from 1-67°. In the fourth O site, O(4) is bonded to one Na(2), one Na(3), one La(3), two equivalent La(1), and one Pt(1) atom to form distorted ONa2La3Pt octahedra that share  a cornercorner with one O(2)Na2La3Pt octahedra, corners with two equivalent O(6)Na2La3Pt octahedra, corners with two equivalent O(5)Na3La2Pt octahedra, corners with three equivalent O(3)Na3La2Pt octahedra, corners with four equivalent O(4)Na2La3Pt octahedra,  an edgeedge with one O(3)Na3La2Pt octahedra,  an edgeedge with one O(5)Na3La2Pt octahedra, edges with two equivalent O(2)Na2La3Pt octahedra,  a faceface with one O(2)Na2La3Pt octahedra,  a faceface with one O(5)Na3La2Pt octahedra, and faces with two equivalent O(6)Na2La3Pt octahedra. The corner-sharing octahedral tilt angles range from 1-56°. In the fifth O site, O(5) is bonded to one Na(2), two equivalent Na(3), one La(1), one La(2), and one Pt(1) atom to form ONa3La2Pt octahedra that share  a cornercorner with one O(3)Na3La2Pt octahedra,  a cornercorner with one O(5)Na3La2Pt octahedra, corners with two equivalent O(4)Na2La3Pt octahedra, corners with three equivalent O(2)Na2La3Pt octahedra, corners with five equivalent O(6)Na2La3Pt octahedra,  an edgeedge with one O(2)Na2La3Pt octahedra,  an edgeedge with one O(4)Na2La3Pt octahedra, edges with two equivalent O(3)Na3La2Pt octahedra,  a faceface with one O(4)Na2La3Pt octahedra,  a faceface with one O(6)Na2La3Pt octahedra,  a faceface with one O(3)Na3La2Pt octahedra, and  a faceface with one O(5)Na3La2Pt octahedra. The corner-sharing octahedral tilt angles range from 3-64°. In the sixth O site, O(6) is bonded to one Na(2), one Na(3), one La(1), one La(2), one La(3), and one Pt(1) atom to form distorted ONa2La3Pt octahedra that share  a cornercorner with one O(6)Na2La3Pt octahedra, corners with two equivalent O(4)Na2La3Pt octahedra, corners with three equivalent O(2)Na2La3Pt octahedra, corners with three equivalent O(3)Na3La2Pt octahedra, corners with five equivalent O(5)Na3La2Pt octahedra,  an edgeedge with one O(6)Na2La3Pt octahedra,  a faceface with one O(2)Na2La3Pt octahedra,  a faceface with one O(3)Na3La2Pt octahedra,  a faceface with one O(5)Na3La2Pt octahedra, and faces with two equivalent O(4)Na2La3Pt octahedra. The corner-sharing octahedral tilt angles range from 19-67°. is represented by the CIF file [CIF]
data_Na2La2PtO6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.722
_cell_length_b   6.722
_cell_length_c   6.754
_cell_angle_alpha   89.069
_cell_angle_beta   89.069
_cell_angle_gamma   89.522
_symmetry_Int_Tables_number   1
_cell_volume   305.065
_cell_formula_units_Z   2
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
  Na  Na0  1  0.747  0.253  0.000  1.0
  Na  Na1  1  0.257  0.743  0.500  1.0
  Na  Na2  1  0.252  0.393  0.139  1.0
  Na  Na3  1  0.607  0.748  0.861  1.0
  La  La4  1  0.741  0.611  0.349  1.0
  La  La5  1  0.389  0.259  0.651  1.0
  La  La6  1  0.123  0.877  0.000  1.0
  La  La7  1  0.892  0.108  0.500  1.0
  Pt  Pt8  1  0.500  0.006  0.246  1.0
  Pt  Pt9  1  0.994  0.500  0.754  1.0
  O  O10  1  0.800  0.949  0.183  1.0
  O  O11  1  0.586  0.293  0.313  1.0
  O  O12  1  0.440  0.076  0.952  1.0
  O  O13  1  0.068  0.438  0.466  1.0
  O  O14  1  0.282  0.575  0.806  1.0
  O  O15  1  0.948  0.792  0.672  1.0
  O  O16  1  0.208  0.052  0.328  1.0
  O  O17  1  0.425  0.718  0.194  1.0
  O  O18  1  0.562  0.932  0.534  1.0
  O  O19  1  0.924  0.560  0.048  1.0
  O  O20  1  0.707  0.414  0.687  1.0
  O  O21  1  0.051  0.200  0.817  1.0
[/CIF]
.