The material described by Th11La2O26 is Fluorite-derived structured and crystallizes in the triclinic P-1 space group. There are six inequivalent Th sites. In the first Th site, Th(1) is bonded in a body-centered cubic geometry to one O(1), one O(11), one O(2), one O(4), one O(5), one O(6), and two equivalent O(8) atoms. In the second Th site, Th(2) is bonded in a body-centered cubic geometry to one O(2), one O(3), one O(4), one O(8), two equivalent O(6), and two equivalent O(7) atoms. In the third Th site, Th(3) is bonded in a body-centered cubic geometry to one O(1), one O(11), one O(12), one O(13), one O(3), one O(4), one O(5), and one O(9) atom. In the fourth Th site, Th(4) is bonded in a body-centered cubic geometry to one O(10), one O(11), one O(12), one O(2), one O(3), one O(9), and two equivalent O(13) atoms. In the fifth Th site, Th(5) is bonded in a body-centered cubic geometry to two equivalent O(4), two equivalent O(5), two equivalent O(7), and two equivalent O(8) atoms. In the sixth Th site, Th(6) is bonded in a body-centered cubic geometry to one O(1), one O(11), one O(13), one O(9), two equivalent O(10), and two equivalent O(12) atoms. La(1) is bonded in a body-centered cubic geometry to one O(1), one O(10), one O(2), one O(3), one O(5), one O(6), one O(7), and one O(9) atom. There are thirteen inequivalent O sites. In the first O site, O(1) is bonded to one Th(1), one Th(3), one Th(6), and one La(1) atom to form OLaTh3 tetrahedra that share  a cornercorner with one O(10)LaTh3 tetrahedra,  a cornercorner with one O(5)LaTh3 tetrahedra,  a cornercorner with one O(7)LaTh3 tetrahedra,  a cornercorner with one O(11)Th4 tetrahedra,  a cornercorner with one O(12)Th4 tetrahedra, corners with two equivalent O(2)LaTh3 tetrahedra, corners with two equivalent O(13)Th4 tetrahedra, corners with two equivalent O(4)Th4 tetrahedra, corners with two equivalent O(8)Th4 tetrahedra, corners with three equivalent O(9)LaTh3 tetrahedra,  an edgeedge with one O(10)LaTh3 tetrahedra,  an edgeedge with one O(3)LaTh3 tetrahedra,  an edgeedge with one O(5)LaTh3 tetrahedra,  an edgeedge with one O(6)LaTh3 tetrahedra,  an edgeedge with one O(11)Th4 tetrahedra, and  an edgeedge with one O(12)Th4 tetrahedra. In the second O site, O(2) is bonded to one Th(1), one Th(2), one Th(4), and one La(1) atom to form OLaTh3 tetrahedra that share  a cornercorner with one O(3)LaTh3 tetrahedra,  a cornercorner with one O(12)Th4 tetrahedra,  a cornercorner with one O(8)Th4 tetrahedra, corners with two equivalent O(1)LaTh3 tetrahedra, corners with two equivalent O(6)LaTh3 tetrahedra, corners with two equivalent O(9)LaTh3 tetrahedra, corners with two equivalent O(13)Th4 tetrahedra, corners with two equivalent O(4)Th4 tetrahedra, corners with three equivalent O(7)LaTh3 tetrahedra,  an edgeedge with one O(10)LaTh3 tetrahedra,  an edgeedge with one O(3)LaTh3 tetrahedra,  an edgeedge with one O(5)LaTh3 tetrahedra,  an edgeedge with one O(6)LaTh3 tetrahedra,  an edgeedge with one O(11)Th4 tetrahedra, and  an edgeedge with one O(8)Th4 tetrahedra. In the third O site, O(3) is bonded to one Th(2), one Th(3), one Th(4), and one La(1) atom to form OLaTh3 tetrahedra that share  a cornercorner with one O(2)LaTh3 tetrahedra,  a cornercorner with one O(7)LaTh3 tetrahedra,  a cornercorner with one O(9)LaTh3 tetrahedra,  a cornercorner with one O(13)Th4 tetrahedra,  a cornercorner with one O(8)Th4 tetrahedra, corners with two equivalent O(10)LaTh3 tetrahedra, corners with two equivalent O(5)LaTh3 tetrahedra, corners with two equivalent O(11)Th4 tetrahedra, corners with two equivalent O(12)Th4 tetrahedra, corners with three equivalent O(6)LaTh3 tetrahedra,  an edgeedge with one O(1)LaTh3 tetrahedra,  an edgeedge with one O(2)LaTh3 tetrahedra,  an edgeedge with one O(7)LaTh3 tetrahedra,  an edgeedge with one O(9)LaTh3 tetrahedra,  an edgeedge with one O(13)Th4 tetrahedra, and  an edgeedge with one O(4)Th4 tetrahedra. In the fourth O site, O(4) is bonded to one Th(1), one Th(2), one Th(3), and one Th(5) atom to form OTh4 tetrahedra that share  a cornercorner with one O(6)LaTh3 tetrahedra,  a cornercorner with one O(9)LaTh3 tetrahedra,  a cornercorner with one O(12)Th4 tetrahedra,  a cornercorner with one O(13)Th4 tetrahedra,  a cornercorner with one O(4)Th4 tetrahedra, corners with two equivalent O(1)LaTh3 tetrahedra, corners with two equivalent O(2)LaTh3 tetrahedra, corners with two equivalent O(5)LaTh3 tetrahedra, corners with two equivalent O(7)LaTh3 tetrahedra, corners with three equivalent O(8)Th4 tetrahedra,  an edgeedge with one O(3)LaTh3 tetrahedra,  an edgeedge with one O(5)LaTh3 tetrahedra,  an edgeedge with one O(6)LaTh3 tetrahedra,  an edgeedge with one O(7)LaTh3 tetrahedra,  an edgeedge with one O(11)Th4 tetrahedra, and  an edgeedge with one O(8)Th4 tetrahedra. In the fifth O site, O(5) is bonded to one Th(1), one Th(3), one Th(5), and one La(1) atom to form OLaTh3 tetrahedra that share  a cornercorner with one O(1)LaTh3 tetrahedra,  a cornercorner with one O(10)LaTh3 tetrahedra,  a cornercorner with one O(5)LaTh3 tetrahedra,  a cornercorner with one O(7)LaTh3 tetrahedra,  a cornercorner with one O(12)Th4 tetrahedra,  a cornercorner with one O(13)Th4 tetrahedra, corners with two equivalent O(3)LaTh3 tetrahedra, corners with two equivalent O(6)LaTh3 tetrahedra, corners with two equivalent O(11)Th4 tetrahedra, corners with two equivalent O(4)Th4 tetrahedra, corners with two equivalent O(8)Th4 tetrahedra,  an edgeedge with one O(1)LaTh3 tetrahedra,  an edgeedge with one O(2)LaTh3 tetrahedra,  an edgeedge with one O(7)LaTh3 tetrahedra,  an edgeedge with one O(9)LaTh3 tetrahedra,  an edgeedge with one O(4)Th4 tetrahedra, and  an edgeedge with one O(8)Th4 tetrahedra. In the sixth O site, O(6) is bonded to one Th(1), two equivalent Th(2), and one La(1) atom to form OLaTh3 tetrahedra that share  a cornercorner with one O(10)LaTh3 tetrahedra,  a cornercorner with one O(9)LaTh3 tetrahedra,  a cornercorner with one O(11)Th4 tetrahedra,  a cornercorner with one O(4)Th4 tetrahedra, corners with two equivalent O(2)LaTh3 tetrahedra, corners with two equivalent O(5)LaTh3 tetrahedra, corners with two equivalent O(8)Th4 tetrahedra, corners with three equivalent O(3)LaTh3 tetrahedra, corners with three equivalent O(7)LaTh3 tetrahedra,  an edgeedge with one O(1)LaTh3 tetrahedra,  an edgeedge with one O(2)LaTh3 tetrahedra,  an edgeedge with one O(6)LaTh3 tetrahedra,  an edgeedge with one O(7)LaTh3 tetrahedra,  an edgeedge with one O(4)Th4 tetrahedra, and  an edgeedge with one O(8)Th4 tetrahedra. In the seventh O site, O(7) is bonded to one Th(5), two equivalent Th(2), and one La(1) atom to form OLaTh3 tetrahedra that share  a cornercorner with one O(1)LaTh3 tetrahedra,  a cornercorner with one O(10)LaTh3 tetrahedra,  a cornercorner with one O(3)LaTh3 tetrahedra,  a cornercorner with one O(5)LaTh3 tetrahedra,  a cornercorner with one O(7)LaTh3 tetrahedra,  a cornercorner with one O(9)LaTh3 tetrahedra, corners with two equivalent O(4)Th4 tetrahedra, corners with two equivalent O(8)Th4 tetrahedra, corners with three equivalent O(2)LaTh3 tetrahedra, corners with three equivalent O(6)LaTh3 tetrahedra,  an edgeedge with one O(3)LaTh3 tetrahedra,  an edgeedge with one O(5)LaTh3 tetrahedra,  an edgeedge with one O(6)LaTh3 tetrahedra,  an edgeedge with one O(7)LaTh3 tetrahedra,  an edgeedge with one O(4)Th4 tetrahedra, and  an edgeedge with one O(8)Th4 tetrahedra. In the eighth O site, O(8) is bonded to one Th(2), one Th(5), and two equivalent Th(1) atoms to form OTh4 tetrahedra that share  a cornercorner with one O(2)LaTh3 tetrahedra,  a cornercorner with one O(3)LaTh3 tetrahedra,  a cornercorner with one O(8)Th4 tetrahedra, corners with two equivalent O(1)LaTh3 tetrahedra, corners with two equivalent O(5)LaTh3 tetrahedra, corners with two equivalent O(6)LaTh3 tetrahedra, corners with two equivalent O(7)LaTh3 tetrahedra, corners with two equivalent O(11)Th4 tetrahedra, corners with three equivalent O(4)Th4 tetrahedra,  an edgeedge with one O(2)LaTh3 tetrahedra,  an edgeedge with one O(5)LaTh3 tetrahedra,  an edgeedge with one O(6)LaTh3 tetrahedra,  an edgeedge with one O(7)LaTh3 tetrahedra,  an edgeedge with one O(4)Th4 tetrahedra, and  an edgeedge with one O(8)Th4 tetrahedra. In the ninth O site, O(9) is bonded to one Th(3), one Th(4), one Th(6), and one La(1) atom to form OLaTh3 tetrahedra that share  a cornercorner with one O(3)LaTh3 tetrahedra,  a cornercorner with one O(6)LaTh3 tetrahedra,  a cornercorner with one O(7)LaTh3 tetrahedra,  a cornercorner with one O(11)Th4 tetrahedra,  a cornercorner with one O(4)Th4 tetrahedra, corners with two equivalent O(10)LaTh3 tetrahedra, corners with two equivalent O(2)LaTh3 tetrahedra, corners with two equivalent O(12)Th4 tetrahedra, corners with two equivalent O(13)Th4 tetrahedra, corners with three equivalent O(1)LaTh3 tetrahedra,  an edgeedge with one O(10)LaTh3 tetrahedra,  an edgeedge with one O(3)LaTh3 tetrahedra,  an edgeedge with one O(5)LaTh3 tetrahedra,  an edgeedge with one O(11)Th4 tetrahedra,  an edgeedge with one O(12)Th4 tetrahedra, and  an edgeedge with one O(13)Th4 tetrahedra. In the tenth O site, O(10) is bonded to one Th(4), two equivalent Th(6), and one La(1) atom to form OLaTh3 tetrahedra that share  a cornercorner with one O(1)LaTh3 tetrahedra,  a cornercorner with one O(5)LaTh3 tetrahedra,  a cornercorner with one O(6)LaTh3 tetrahedra,  a cornercorner with one O(7)LaTh3 tetrahedra, corners with two equivalent O(3)LaTh3 tetrahedra, corners with two equivalent O(9)LaTh3 tetrahedra, corners with two equivalent O(13)Th4 tetrahedra, corners with three equivalent O(11)Th4 tetrahedra, corners with three equivalent O(12)Th4 tetrahedra,  an edgeedge with one O(1)LaTh3 tetrahedra,  an edgeedge with one O(10)LaTh3 tetrahedra,  an edgeedge with one O(2)LaTh3 tetrahedra,  an edgeedge with one O(9)LaTh3 tetrahedra,  an edgeedge with one O(12)Th4 tetrahedra, and  an edgeedge with one O(13)Th4 tetrahedra. In the eleventh O site, O(11) is bonded to one Th(1), one Th(3), one Th(4), and one Th(6) atom to form OTh4 tetrahedra that share  a cornercorner with one O(1)LaTh3 tetrahedra,  a cornercorner with one O(6)LaTh3 tetrahedra,  a cornercorner with one O(9)LaTh3 tetrahedra, corners with two equivalent O(3)LaTh3 tetrahedra, corners with two equivalent O(5)LaTh3 tetrahedra, corners with two equivalent O(12)Th4 tetrahedra, corners with two equivalent O(13)Th4 tetrahedra, corners with two equivalent O(8)Th4 tetrahedra, corners with three equivalent O(10)LaTh3 tetrahedra,  an edgeedge with one O(1)LaTh3 tetrahedra,  an edgeedge with one O(2)LaTh3 tetrahedra,  an edgeedge with one O(9)LaTh3 tetrahedra,  an edgeedge with one O(12)Th4 tetrahedra,  an edgeedge with one O(13)Th4 tetrahedra, and  an edgeedge with one O(4)Th4 tetrahedra. In the twelfth O site, O(12) is bonded to one Th(3), one Th(4), and two equivalent Th(6) atoms to form OTh4 tetrahedra that share  a cornercorner with one O(1)LaTh3 tetrahedra,  a cornercorner with one O(2)LaTh3 tetrahedra,  a cornercorner with one O(5)LaTh3 tetrahedra,  a cornercorner with one O(4)Th4 tetrahedra, corners with two equivalent O(3)LaTh3 tetrahedra, corners with two equivalent O(9)LaTh3 tetrahedra, corners with two equivalent O(11)Th4 tetrahedra, corners with three equivalent O(10)LaTh3 tetrahedra, corners with three equivalent O(13)Th4 tetrahedra,  an edgeedge with one O(1)LaTh3 tetrahedra,  an edgeedge with one O(10)LaTh3 tetrahedra,  an edgeedge with one O(9)LaTh3 tetrahedra,  an edgeedge with one O(11)Th4 tetrahedra,  an edgeedge with one O(12)Th4 tetrahedra, and  an edgeedge with one O(13)Th4 tetrahedra. In the thirteenth O site, O(13) is bonded to one Th(3), one Th(6), and two equivalent Th(4) atoms to form OTh4 tetrahedra that share  a cornercorner with one O(3)LaTh3 tetrahedra,  a cornercorner with one O(5)LaTh3 tetrahedra,  a cornercorner with one O(4)Th4 tetrahedra, corners with two equivalent O(1)LaTh3 tetrahedra, corners with two equivalent O(10)LaTh3 tetrahedra, corners with two equivalent O(2)LaTh3 tetrahedra, corners with two equivalent O(9)LaTh3 tetrahedra, corners with two equivalent O(11)Th4 tetrahedra, corners with three equivalent O(12)Th4 tetrahedra,  an edgeedge with one O(10)LaTh3 tetrahedra,  an edgeedge with one O(3)LaTh3 tetrahedra,  an edgeedge with one O(9)LaTh3 tetrahedra,  an edgeedge with one O(11)Th4 tetrahedra,  an edgeedge with one O(12)Th4 tetrahedra, and  an edgeedge with one O(13)Th4 tetrahedra. is represented by the CIF file [CIF]
data_La2Th11O26
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.881
_cell_length_b   6.881
_cell_length_c   12.563
_cell_angle_alpha   89.991
_cell_angle_beta   100.512
_cell_angle_gamma   99.594
_symmetry_Int_Tables_number   1
_cell_volume   576.389
_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  0.808  0.385  0.731  1.0
  La  La1  1  0.192  0.615  0.269  1.0
  Th  Th2  1  0.038  0.923  0.654  1.0
  Th  Th3  1  0.269  0.462  0.577  1.0
  Th  Th4  1  0.578  0.846  0.808  1.0
  Th  Th5  1  0.731  0.538  0.423  1.0
  Th  Th6  1  0.654  0.692  0.116  1.0
  Th  Th7  1  0.962  0.077  0.346  1.0
  Th  Th8  1  0.500  0.000  0.500  1.0
  Th  Th9  1  0.422  0.154  0.192  1.0
  Th  Th10  1  0.115  0.768  0.962  1.0
  Th  Th11  1  0.885  0.232  0.038  1.0
  Th  Th12  1  0.346  0.308  0.884  1.0
  O  O13  1  0.887  0.739  0.791  1.0
  O  O14  1  0.122  0.265  0.711  1.0
  O  O15  1  0.493  0.504  0.750  1.0
  O  O16  1  0.345  0.810  0.635  1.0
  O  O17  1  0.728  0.030  0.671  1.0
  O  O18  1  0.965  0.583  0.593  1.0
  O  O19  1  0.571  0.344  0.553  1.0
  O  O20  1  0.429  0.656  0.447  1.0
  O  O21  1  0.191  0.113  0.519  1.0
  O  O22  1  0.809  0.887  0.481  1.0
  O  O23  1  0.035  0.417  0.407  1.0
  O  O24  1  0.878  0.735  0.289  1.0
  O  O25  1  0.655  0.190  0.365  1.0
  O  O26  1  0.113  0.261  0.209  1.0
  O  O27  1  0.507  0.496  0.250  1.0
  O  O28  1  0.272  0.970  0.329  1.0
  O  O29  1  0.350  0.812  0.131  1.0
  O  O30  1  0.954  0.576  0.092  1.0
  O  O31  1  0.730  0.040  0.173  1.0
  O  O32  1  0.192  0.115  0.018  1.0
  O  O33  1  0.808  0.885  0.982  1.0
  O  O34  1  0.425  0.654  0.943  1.0
  O  O35  1  0.046  0.424  0.908  1.0
  O  O36  1  0.575  0.346  0.057  1.0
  O  O37  1  0.650  0.188  0.869  1.0
  O  O38  1  0.270  0.960  0.827  1.0
[/CIF]
.
The material described by Th11La2O26 is Fluorite-derived structured and crystallizes in the triclinic P-1 space group. There are six inequivalent Th sites. In the first Th site, Th(1) is bonded in a body-centered cubic geometry to one O(1), one O(11), one O(2), one O(4), one O(5), one O(6), and two equivalent O(8) atoms. In the second Th site, Th(2) is bonded in a body-centered cubic geometry to one O(2), one O(3), one O(4), one O(8), two equivalent O(6), and two equivalent O(7) atoms. In the third Th site, Th(3) is bonded in a body-centered cubic geometry to one O(1), one O(11), one O(12), one O(13), one O(3), one O(4), one O(5), and one O(9) atom. In the fourth Th site, Th(4) is bonded in a body-centered cubic geometry to one O(10), one O(11), one O(12), one O(2), one O(3), one O(9), and two equivalent O(13) atoms. In the fifth Th site, Th(5) is bonded in a body-centered cubic geometry to two equivalent O(4), two equivalent O(5), two equivalent O(7), and two equivalent O(8) atoms. In the sixth Th site, Th(6) is bonded in a body-centered cubic geometry to one O(1), one O(11), one O(13), one O(9), two equivalent O(10), and two equivalent O(12) atoms. La(1) is bonded in a body-centered cubic geometry to one O(1), one O(10), one O(2), one O(3), one O(5), one O(6), one O(7), and one O(9) atom. There are thirteen inequivalent O sites. In the first O site, O(1) is bonded to one Th(1), one Th(3), one Th(6), and one La(1) atom to form OLaTh3 tetrahedra that share  a cornercorner with one O(10)LaTh3 tetrahedra,  a cornercorner with one O(5)LaTh3 tetrahedra,  a cornercorner with one O(7)LaTh3 tetrahedra,  a cornercorner with one O(11)Th4 tetrahedra,  a cornercorner with one O(12)Th4 tetrahedra, corners with two equivalent O(2)LaTh3 tetrahedra, corners with two equivalent O(13)Th4 tetrahedra, corners with two equivalent O(4)Th4 tetrahedra, corners with two equivalent O(8)Th4 tetrahedra, corners with three equivalent O(9)LaTh3 tetrahedra,  an edgeedge with one O(10)LaTh3 tetrahedra,  an edgeedge with one O(3)LaTh3 tetrahedra,  an edgeedge with one O(5)LaTh3 tetrahedra,  an edgeedge with one O(6)LaTh3 tetrahedra,  an edgeedge with one O(11)Th4 tetrahedra, and  an edgeedge with one O(12)Th4 tetrahedra. In the second O site, O(2) is bonded to one Th(1), one Th(2), one Th(4), and one La(1) atom to form OLaTh3 tetrahedra that share  a cornercorner with one O(3)LaTh3 tetrahedra,  a cornercorner with one O(12)Th4 tetrahedra,  a cornercorner with one O(8)Th4 tetrahedra, corners with two equivalent O(1)LaTh3 tetrahedra, corners with two equivalent O(6)LaTh3 tetrahedra, corners with two equivalent O(9)LaTh3 tetrahedra, corners with two equivalent O(13)Th4 tetrahedra, corners with two equivalent O(4)Th4 tetrahedra, corners with three equivalent O(7)LaTh3 tetrahedra,  an edgeedge with one O(10)LaTh3 tetrahedra,  an edgeedge with one O(3)LaTh3 tetrahedra,  an edgeedge with one O(5)LaTh3 tetrahedra,  an edgeedge with one O(6)LaTh3 tetrahedra,  an edgeedge with one O(11)Th4 tetrahedra, and  an edgeedge with one O(8)Th4 tetrahedra. In the third O site, O(3) is bonded to one Th(2), one Th(3), one Th(4), and one La(1) atom to form OLaTh3 tetrahedra that share  a cornercorner with one O(2)LaTh3 tetrahedra,  a cornercorner with one O(7)LaTh3 tetrahedra,  a cornercorner with one O(9)LaTh3 tetrahedra,  a cornercorner with one O(13)Th4 tetrahedra,  a cornercorner with one O(8)Th4 tetrahedra, corners with two equivalent O(10)LaTh3 tetrahedra, corners with two equivalent O(5)LaTh3 tetrahedra, corners with two equivalent O(11)Th4 tetrahedra, corners with two equivalent O(12)Th4 tetrahedra, corners with three equivalent O(6)LaTh3 tetrahedra,  an edgeedge with one O(1)LaTh3 tetrahedra,  an edgeedge with one O(2)LaTh3 tetrahedra,  an edgeedge with one O(7)LaTh3 tetrahedra,  an edgeedge with one O(9)LaTh3 tetrahedra,  an edgeedge with one O(13)Th4 tetrahedra, and  an edgeedge with one O(4)Th4 tetrahedra. In the fourth O site, O(4) is bonded to one Th(1), one Th(2), one Th(3), and one Th(5) atom to form OTh4 tetrahedra that share  a cornercorner with one O(6)LaTh3 tetrahedra,  a cornercorner with one O(9)LaTh3 tetrahedra,  a cornercorner with one O(12)Th4 tetrahedra,  a cornercorner with one O(13)Th4 tetrahedra,  a cornercorner with one O(4)Th4 tetrahedra, corners with two equivalent O(1)LaTh3 tetrahedra, corners with two equivalent O(2)LaTh3 tetrahedra, corners with two equivalent O(5)LaTh3 tetrahedra, corners with two equivalent O(7)LaTh3 tetrahedra, corners with three equivalent O(8)Th4 tetrahedra,  an edgeedge with one O(3)LaTh3 tetrahedra,  an edgeedge with one O(5)LaTh3 tetrahedra,  an edgeedge with one O(6)LaTh3 tetrahedra,  an edgeedge with one O(7)LaTh3 tetrahedra,  an edgeedge with one O(11)Th4 tetrahedra, and  an edgeedge with one O(8)Th4 tetrahedra. In the fifth O site, O(5) is bonded to one Th(1), one Th(3), one Th(5), and one La(1) atom to form OLaTh3 tetrahedra that share  a cornercorner with one O(1)LaTh3 tetrahedra,  a cornercorner with one O(10)LaTh3 tetrahedra,  a cornercorner with one O(5)LaTh3 tetrahedra,  a cornercorner with one O(7)LaTh3 tetrahedra,  a cornercorner with one O(12)Th4 tetrahedra,  a cornercorner with one O(13)Th4 tetrahedra, corners with two equivalent O(3)LaTh3 tetrahedra, corners with two equivalent O(6)LaTh3 tetrahedra, corners with two equivalent O(11)Th4 tetrahedra, corners with two equivalent O(4)Th4 tetrahedra, corners with two equivalent O(8)Th4 tetrahedra,  an edgeedge with one O(1)LaTh3 tetrahedra,  an edgeedge with one O(2)LaTh3 tetrahedra,  an edgeedge with one O(7)LaTh3 tetrahedra,  an edgeedge with one O(9)LaTh3 tetrahedra,  an edgeedge with one O(4)Th4 tetrahedra, and  an edgeedge with one O(8)Th4 tetrahedra. In the sixth O site, O(6) is bonded to one Th(1), two equivalent Th(2), and one La(1) atom to form OLaTh3 tetrahedra that share  a cornercorner with one O(10)LaTh3 tetrahedra,  a cornercorner with one O(9)LaTh3 tetrahedra,  a cornercorner with one O(11)Th4 tetrahedra,  a cornercorner with one O(4)Th4 tetrahedra, corners with two equivalent O(2)LaTh3 tetrahedra, corners with two equivalent O(5)LaTh3 tetrahedra, corners with two equivalent O(8)Th4 tetrahedra, corners with three equivalent O(3)LaTh3 tetrahedra, corners with three equivalent O(7)LaTh3 tetrahedra,  an edgeedge with one O(1)LaTh3 tetrahedra,  an edgeedge with one O(2)LaTh3 tetrahedra,  an edgeedge with one O(6)LaTh3 tetrahedra,  an edgeedge with one O(7)LaTh3 tetrahedra,  an edgeedge with one O(4)Th4 tetrahedra, and  an edgeedge with one O(8)Th4 tetrahedra. In the seventh O site, O(7) is bonded to one Th(5), two equivalent Th(2), and one La(1) atom to form OLaTh3 tetrahedra that share  a cornercorner with one O(1)LaTh3 tetrahedra,  a cornercorner with one O(10)LaTh3 tetrahedra,  a cornercorner with one O(3)LaTh3 tetrahedra,  a cornercorner with one O(5)LaTh3 tetrahedra,  a cornercorner with one O(7)LaTh3 tetrahedra,  a cornercorner with one O(9)LaTh3 tetrahedra, corners with two equivalent O(4)Th4 tetrahedra, corners with two equivalent O(8)Th4 tetrahedra, corners with three equivalent O(2)LaTh3 tetrahedra, corners with three equivalent O(6)LaTh3 tetrahedra,  an edgeedge with one O(3)LaTh3 tetrahedra,  an edgeedge with one O(5)LaTh3 tetrahedra,  an edgeedge with one O(6)LaTh3 tetrahedra,  an edgeedge with one O(7)LaTh3 tetrahedra,  an edgeedge with one O(4)Th4 tetrahedra, and  an edgeedge with one O(8)Th4 tetrahedra. In the eighth O site, O(8) is bonded to one Th(2), one Th(5), and two equivalent Th(1) atoms to form OTh4 tetrahedra that share  a cornercorner with one O(2)LaTh3 tetrahedra,  a cornercorner with one O(3)LaTh3 tetrahedra,  a cornercorner with one O(8)Th4 tetrahedra, corners with two equivalent O(1)LaTh3 tetrahedra, corners with two equivalent O(5)LaTh3 tetrahedra, corners with two equivalent O(6)LaTh3 tetrahedra, corners with two equivalent O(7)LaTh3 tetrahedra, corners with two equivalent O(11)Th4 tetrahedra, corners with three equivalent O(4)Th4 tetrahedra,  an edgeedge with one O(2)LaTh3 tetrahedra,  an edgeedge with one O(5)LaTh3 tetrahedra,  an edgeedge with one O(6)LaTh3 tetrahedra,  an edgeedge with one O(7)LaTh3 tetrahedra,  an edgeedge with one O(4)Th4 tetrahedra, and  an edgeedge with one O(8)Th4 tetrahedra. In the ninth O site, O(9) is bonded to one Th(3), one Th(4), one Th(6), and one La(1) atom to form OLaTh3 tetrahedra that share  a cornercorner with one O(3)LaTh3 tetrahedra,  a cornercorner with one O(6)LaTh3 tetrahedra,  a cornercorner with one O(7)LaTh3 tetrahedra,  a cornercorner with one O(11)Th4 tetrahedra,  a cornercorner with one O(4)Th4 tetrahedra, corners with two equivalent O(10)LaTh3 tetrahedra, corners with two equivalent O(2)LaTh3 tetrahedra, corners with two equivalent O(12)Th4 tetrahedra, corners with two equivalent O(13)Th4 tetrahedra, corners with three equivalent O(1)LaTh3 tetrahedra,  an edgeedge with one O(10)LaTh3 tetrahedra,  an edgeedge with one O(3)LaTh3 tetrahedra,  an edgeedge with one O(5)LaTh3 tetrahedra,  an edgeedge with one O(11)Th4 tetrahedra,  an edgeedge with one O(12)Th4 tetrahedra, and  an edgeedge with one O(13)Th4 tetrahedra. In the tenth O site, O(10) is bonded to one Th(4), two equivalent Th(6), and one La(1) atom to form OLaTh3 tetrahedra that share  a cornercorner with one O(1)LaTh3 tetrahedra,  a cornercorner with one O(5)LaTh3 tetrahedra,  a cornercorner with one O(6)LaTh3 tetrahedra,  a cornercorner with one O(7)LaTh3 tetrahedra, corners with two equivalent O(3)LaTh3 tetrahedra, corners with two equivalent O(9)LaTh3 tetrahedra, corners with two equivalent O(13)Th4 tetrahedra, corners with three equivalent O(11)Th4 tetrahedra, corners with three equivalent O(12)Th4 tetrahedra,  an edgeedge with one O(1)LaTh3 tetrahedra,  an edgeedge with one O(10)LaTh3 tetrahedra,  an edgeedge with one O(2)LaTh3 tetrahedra,  an edgeedge with one O(9)LaTh3 tetrahedra,  an edgeedge with one O(12)Th4 tetrahedra, and  an edgeedge with one O(13)Th4 tetrahedra. In the eleventh O site, O(11) is bonded to one Th(1), one Th(3), one Th(4), and one Th(6) atom to form OTh4 tetrahedra that share  a cornercorner with one O(1)LaTh3 tetrahedra,  a cornercorner with one O(6)LaTh3 tetrahedra,  a cornercorner with one O(9)LaTh3 tetrahedra, corners with two equivalent O(3)LaTh3 tetrahedra, corners with two equivalent O(5)LaTh3 tetrahedra, corners with two equivalent O(12)Th4 tetrahedra, corners with two equivalent O(13)Th4 tetrahedra, corners with two equivalent O(8)Th4 tetrahedra, corners with three equivalent O(10)LaTh3 tetrahedra,  an edgeedge with one O(1)LaTh3 tetrahedra,  an edgeedge with one O(2)LaTh3 tetrahedra,  an edgeedge with one O(9)LaTh3 tetrahedra,  an edgeedge with one O(12)Th4 tetrahedra,  an edgeedge with one O(13)Th4 tetrahedra, and  an edgeedge with one O(4)Th4 tetrahedra. In the twelfth O site, O(12) is bonded to one Th(3), one Th(4), and two equivalent Th(6) atoms to form OTh4 tetrahedra that share  a cornercorner with one O(1)LaTh3 tetrahedra,  a cornercorner with one O(2)LaTh3 tetrahedra,  a cornercorner with one O(5)LaTh3 tetrahedra,  a cornercorner with one O(4)Th4 tetrahedra, corners with two equivalent O(3)LaTh3 tetrahedra, corners with two equivalent O(9)LaTh3 tetrahedra, corners with two equivalent O(11)Th4 tetrahedra, corners with three equivalent O(10)LaTh3 tetrahedra, corners with three equivalent O(13)Th4 tetrahedra,  an edgeedge with one O(1)LaTh3 tetrahedra,  an edgeedge with one O(10)LaTh3 tetrahedra,  an edgeedge with one O(9)LaTh3 tetrahedra,  an edgeedge with one O(11)Th4 tetrahedra,  an edgeedge with one O(12)Th4 tetrahedra, and  an edgeedge with one O(13)Th4 tetrahedra. In the thirteenth O site, O(13) is bonded to one Th(3), one Th(6), and two equivalent Th(4) atoms to form OTh4 tetrahedra that share  a cornercorner with one O(3)LaTh3 tetrahedra,  a cornercorner with one O(5)LaTh3 tetrahedra,  a cornercorner with one O(4)Th4 tetrahedra, corners with two equivalent O(1)LaTh3 tetrahedra, corners with two equivalent O(10)LaTh3 tetrahedra, corners with two equivalent O(2)LaTh3 tetrahedra, corners with two equivalent O(9)LaTh3 tetrahedra, corners with two equivalent O(11)Th4 tetrahedra, corners with three equivalent O(12)Th4 tetrahedra,  an edgeedge with one O(10)LaTh3 tetrahedra,  an edgeedge with one O(3)LaTh3 tetrahedra,  an edgeedge with one O(9)LaTh3 tetrahedra,  an edgeedge with one O(11)Th4 tetrahedra,  an edgeedge with one O(12)Th4 tetrahedra, and  an edgeedge with one O(13)Th4 tetrahedra. is represented by the CIF file [CIF]
data_La2Th11O26
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.881
_cell_length_b   6.881
_cell_length_c   12.563
_cell_angle_alpha   89.991
_cell_angle_beta   100.512
_cell_angle_gamma   99.594
_symmetry_Int_Tables_number   1
_cell_volume   576.389
_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  0.808  0.385  0.731  1.0
  La  La1  1  0.192  0.615  0.269  1.0
  Th  Th2  1  0.038  0.923  0.654  1.0
  Th  Th3  1  0.269  0.462  0.577  1.0
  Th  Th4  1  0.578  0.846  0.808  1.0
  Th  Th5  1  0.731  0.538  0.423  1.0
  Th  Th6  1  0.654  0.692  0.116  1.0
  Th  Th7  1  0.962  0.077  0.346  1.0
  Th  Th8  1  0.500  0.000  0.500  1.0
  Th  Th9  1  0.422  0.154  0.192  1.0
  Th  Th10  1  0.115  0.768  0.962  1.0
  Th  Th11  1  0.885  0.232  0.038  1.0
  Th  Th12  1  0.346  0.308  0.884  1.0
  O  O13  1  0.887  0.739  0.791  1.0
  O  O14  1  0.122  0.265  0.711  1.0
  O  O15  1  0.493  0.504  0.750  1.0
  O  O16  1  0.345  0.810  0.635  1.0
  O  O17  1  0.728  0.030  0.671  1.0
  O  O18  1  0.965  0.583  0.593  1.0
  O  O19  1  0.571  0.344  0.553  1.0
  O  O20  1  0.429  0.656  0.447  1.0
  O  O21  1  0.191  0.113  0.519  1.0
  O  O22  1  0.809  0.887  0.481  1.0
  O  O23  1  0.035  0.417  0.407  1.0
  O  O24  1  0.878  0.735  0.289  1.0
  O  O25  1  0.655  0.190  0.365  1.0
  O  O26  1  0.113  0.261  0.209  1.0
  O  O27  1  0.507  0.496  0.250  1.0
  O  O28  1  0.272  0.970  0.329  1.0
  O  O29  1  0.350  0.812  0.131  1.0
  O  O30  1  0.954  0.576  0.092  1.0
  O  O31  1  0.730  0.040  0.173  1.0
  O  O32  1  0.192  0.115  0.018  1.0
  O  O33  1  0.808  0.885  0.982  1.0
  O  O34  1  0.425  0.654  0.943  1.0
  O  O35  1  0.046  0.424  0.908  1.0
  O  O36  1  0.575  0.346  0.057  1.0
  O  O37  1  0.650  0.188  0.869  1.0
  O  O38  1  0.270  0.960  0.827  1.0
[/CIF]
.