The structure described by LiLa2(AsO4)2 crystallizes in the monoclinic C2 space group. Li(1) is bonded to two equivalent O(2) and two equivalent O(4) atoms to form distorted LiO4 tetrahedra that share corners with two equivalent As(1)O4 tetrahedra and  an edgeedge with one As(2)O4 tetrahedra. There are two inequivalent La sites. In the first La site, La(1) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(2), two equivalent O(3), 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(2), two equivalent O(3), and two equivalent O(4) atoms. There are two inequivalent As sites. In the first As site, As(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form AsO4 tetrahedra that share corners with two equivalent Li(1)O4 tetrahedra. In the second As site, As(2) is bonded to two equivalent O(3) and two equivalent O(4) atoms to form AsO4 tetrahedra that share  an edgeedge with one Li(1)O4 tetrahedra. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one La(1), one La(2), and one As(1) atom. In the second O site, O(2) is bonded to one Li(1), one La(1), one La(2), and one As(1) atom to form a mixture of distorted corner and edge-sharing OLiLa2As trigonal pyramids. In the third O site, O(3) is bonded in a 3-coordinate geometry to one La(1), one La(2), and one As(2) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Li(1), one La(1), one La(2), and one As(2) atom. is represented by the CIF card [CIF]
data_LiLa2(AsO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.309
_cell_length_b   6.309
_cell_length_c   6.253
_cell_angle_alpha   105.493
_cell_angle_beta   105.493
_cell_angle_gamma   115.955
_symmetry_Int_Tables_number   1
_cell_volume   193.345
_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
  Li  Li0  1  0.023  0.977  0.500  1.0
  La  La1  1  0.999  0.001  0.000  1.0
  La  La2  1  0.735  0.265  0.500  1.0
  As  As3  1  0.483  0.517  0.000  1.0
  As  As4  1  0.263  0.737  0.500  1.0
  O  O5  1  0.494  0.329  0.168  1.0
  O  O6  1  0.726  0.890  0.226  1.0
  O  O7  1  0.092  0.406  0.324  1.0
  O  O8  1  0.671  0.506  0.832  1.0
  O  O9  1  0.594  0.908  0.676  1.0
  O  O10  1  0.242  0.921  0.338  1.0
  O  O11  1  0.110  0.274  0.774  1.0
  O  O12  1  0.079  0.758  0.662  1.0
[/CIF]
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The structure described by LiLa2(AsO4)2 crystallizes in the monoclinic C2 space group. Li(1) is bonded to two equivalent O(2) and two equivalent O(4) atoms to form distorted LiO4 tetrahedra that share corners with two equivalent As(1)O4 tetrahedra and  an edgeedge with one As(2)O4 tetrahedra. There are two inequivalent La sites. In the first La site, La(1) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(2), two equivalent O(3), 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(2), two equivalent O(3), and two equivalent O(4) atoms. There are two inequivalent As sites. In the first As site, As(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form AsO4 tetrahedra that share corners with two equivalent Li(1)O4 tetrahedra. In the second As site, As(2) is bonded to two equivalent O(3) and two equivalent O(4) atoms to form AsO4 tetrahedra that share  an edgeedge with one Li(1)O4 tetrahedra. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one La(1), one La(2), and one As(1) atom. In the second O site, O(2) is bonded to one Li(1), one La(1), one La(2), and one As(1) atom to form a mixture of distorted corner and edge-sharing OLiLa2As trigonal pyramids. In the third O site, O(3) is bonded in a 3-coordinate geometry to one La(1), one La(2), and one As(2) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Li(1), one La(1), one La(2), and one As(2) atom. is represented by the CIF card [CIF]
data_LiLa2(AsO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.309
_cell_length_b   6.309
_cell_length_c   6.253
_cell_angle_alpha   105.493
_cell_angle_beta   105.493
_cell_angle_gamma   115.955
_symmetry_Int_Tables_number   1
_cell_volume   193.345
_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
  Li  Li0  1  0.023  0.977  0.500  1.0
  La  La1  1  0.999  0.001  0.000  1.0
  La  La2  1  0.735  0.265  0.500  1.0
  As  As3  1  0.483  0.517  0.000  1.0
  As  As4  1  0.263  0.737  0.500  1.0
  O  O5  1  0.494  0.329  0.168  1.0
  O  O6  1  0.726  0.890  0.226  1.0
  O  O7  1  0.092  0.406  0.324  1.0
  O  O8  1  0.671  0.506  0.832  1.0
  O  O9  1  0.594  0.908  0.676  1.0
  O  O10  1  0.242  0.921  0.338  1.0
  O  O11  1  0.110  0.274  0.774  1.0
  O  O12  1  0.079  0.758  0.662  1.0
[/CIF]
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