The material described by Li2Sn(BO3)2 crystallizes in the monoclinic Pc space group. There are four inequivalent Li sites. In the first Li site, Li(1) is bonded to one O(2), one O(4), one O(7), and one O(8) atom to form distorted LiO4 tetrahedra that share corners with two equivalent Sn(1)O6 octahedra,  a cornercorner with one Sn(2)O7 pentagonal bipyramid,  a cornercorner with one Li(4)O4 tetrahedra, and corners with two equivalent Li(3)O4 trigonal pyramids. The corner-sharing octahedral tilt angles range from 71-79°. In the second Li site, Li(2) is bonded in a 4-coordinate geometry to one O(1), one O(11), one O(3), and one O(5) atom. In the third Li site, Li(3) is bonded to one O(4), one O(6), one O(7), and one O(9) atom to form distorted LiO4 trigonal pyramids that share corners with two equivalent Li(1)O4 tetrahedra,  an edgeedge with one Sn(1)O6 octahedra, and  an edgeedge with one Sn(2)O7 pentagonal bipyramid. In the fourth Li site, Li(4) is bonded to one O(1), one O(10), one O(2), and one O(3) atom to form distorted LiO4 tetrahedra that share  a cornercorner with one Sn(1)O6 octahedra, corners with three equivalent Sn(2)O7 pentagonal bipyramids, and  a cornercorner with one Li(1)O4 tetrahedra. The corner-sharing octahedral tilt angles are 53°. There are four inequivalent B sites. In the first B site, B(1) is bonded in a trigonal planar geometry to one O(2), one O(3), and one O(8) atom. In the second B site, B(2) is bonded in a trigonal planar geometry to one O(1), one O(4), and one O(5) atom. In the third B site, B(3) is bonded in a trigonal planar geometry to one O(11), one O(6), and one O(9) atom. In the fourth B site, B(4) is bonded in a trigonal planar geometry to one O(10), one O(12), and one O(7) atom. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded to one O(10), one O(12), one O(4), one O(5), one O(6), and one O(8) atom to form distorted SnO6 octahedra that share  a cornercorner with one Li(4)O4 tetrahedra, corners with two equivalent Li(1)O4 tetrahedra,  an edgeedge with one Sn(2)O7 pentagonal bipyramid, and  an edgeedge with one Li(3)O4 trigonal pyramid. In the second Sn site, Sn(2) is bonded to one O(1), one O(11), one O(12), one O(2), one O(3), one O(6), and one O(9) atom to form distorted SnO7 pentagonal bipyramids that share  a cornercorner with one Li(1)O4 tetrahedra, corners with three equivalent Li(4)O4 tetrahedra,  an edgeedge with one Sn(1)O6 octahedra, and  an edgeedge with one Li(3)O4 trigonal pyramid. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Li(2), one Li(4), one B(2), and one Sn(2) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Li(1), one Li(4), one B(1), and one Sn(2) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Li(2), one Li(4), one B(1), and one Sn(2) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Li(1), one Li(3), one B(2), and one Sn(1) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Li(2), one B(2), and one Sn(1) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Li(3), one B(3), one Sn(1), and one Sn(2) atom. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one Li(1), one Li(3), and one B(4) atom. In the eighth O site, O(8) is bonded in a distorted trigonal non-coplanar geometry to one Li(1), one B(1), and one Sn(1) atom. In the ninth O site, O(9) is bonded in a 3-coordinate geometry to one Li(3), one B(3), and one Sn(2) atom. In the tenth O site, O(10) is bonded in a distorted trigonal planar geometry to one Li(4), one B(4), and one Sn(1) atom. In the eleventh O site, O(11) is bonded in a 3-coordinate geometry to one Li(2), one B(3), and one Sn(2) atom. In the twelfth O site, O(12) is bonded in a distorted trigonal planar geometry to one B(4), one Sn(1), and one Sn(2) atom. is represented by the CIF file [CIF]
data_Li2Sn(BO3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.507
_cell_length_b   8.155
_cell_length_c   9.943
_cell_angle_alpha   64.181
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   474.949
_cell_formula_units_Z   4
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  0.993  0.594  0.507  1.0
  Li  Li1  1  0.498  0.430  0.983  1.0
  Li  Li2  1  0.477  0.806  0.453  1.0
  Li  Li3  1  0.523  0.806  0.953  1.0
  Li  Li4  1  0.170  0.270  0.146  1.0
  Li  Li5  1  0.007  0.594  0.007  1.0
  Li  Li6  1  0.830  0.270  0.646  1.0
  Li  Li7  1  0.502  0.430  0.483  1.0
  Sn  Sn8  1  0.204  0.823  0.172  1.0
  Sn  Sn9  1  0.796  0.823  0.672  1.0
  Sn  Sn10  1  0.710  0.191  0.308  1.0
  Sn  Sn11  1  0.290  0.191  0.808  1.0
  B  B12  1  0.091  0.469  0.808  1.0
  B  B13  1  0.606  0.535  0.698  1.0
  B  B14  1  0.575  0.071  0.121  1.0
  B  B15  1  0.081  0.927  0.389  1.0
  B  B16  1  0.425  0.071  0.621  1.0
  B  B17  1  0.919  0.927  0.889  1.0
  B  B18  1  0.909  0.469  0.308  1.0
  B  B19  1  0.394  0.535  0.198  1.0
  O  O20  1  0.547  0.366  0.712  1.0
  O  O21  1  0.055  0.393  0.708  1.0
  O  O22  1  0.223  0.359  0.925  1.0
  O  O23  1  0.713  0.649  0.567  1.0
  O  O24  1  0.578  0.614  0.795  1.0
  O  O25  1  0.447  0.006  0.041  1.0
  O  O26  1  0.192  0.777  0.467  1.0
  O  O27  1  0.020  0.631  0.797  1.0
  O  O28  1  0.571  0.982  0.276  1.0
  O  O29  1  0.097  0.017  0.233  1.0
  O  O30  1  0.686  0.228  0.064  1.0
  O  O31  1  0.932  0.995  0.454  1.0
  O  O32  1  0.553  0.006  0.541  1.0
  O  O33  1  0.808  0.777  0.967  1.0
  O  O34  1  0.429  0.982  0.776  1.0
  O  O35  1  0.903  0.017  0.733  1.0
  O  O36  1  0.453  0.366  0.212  1.0
  O  O37  1  0.314  0.228  0.564  1.0
  O  O38  1  0.068  0.995  0.954  1.0
  O  O39  1  0.945  0.393  0.208  1.0
  O  O40  1  0.777  0.359  0.425  1.0
  O  O41  1  0.287  0.649  0.067  1.0
  O  O42  1  0.422  0.614  0.295  1.0
  O  O43  1  0.980  0.631  0.297  1.0
[/CIF]
.
The material described by Li2Sn(BO3)2 crystallizes in the monoclinic Pc space group. There are four inequivalent Li sites. In the first Li site, Li(1) is bonded to one O(2), one O(4), one O(7), and one O(8) atom to form distorted LiO4 tetrahedra that share corners with two equivalent Sn(1)O6 octahedra,  a cornercorner with one Sn(2)O7 pentagonal bipyramid,  a cornercorner with one Li(4)O4 tetrahedra, and corners with two equivalent Li(3)O4 trigonal pyramids. The corner-sharing octahedral tilt angles range from 71-79°. In the second Li site, Li(2) is bonded in a 4-coordinate geometry to one O(1), one O(11), one O(3), and one O(5) atom. In the third Li site, Li(3) is bonded to one O(4), one O(6), one O(7), and one O(9) atom to form distorted LiO4 trigonal pyramids that share corners with two equivalent Li(1)O4 tetrahedra,  an edgeedge with one Sn(1)O6 octahedra, and  an edgeedge with one Sn(2)O7 pentagonal bipyramid. In the fourth Li site, Li(4) is bonded to one O(1), one O(10), one O(2), and one O(3) atom to form distorted LiO4 tetrahedra that share  a cornercorner with one Sn(1)O6 octahedra, corners with three equivalent Sn(2)O7 pentagonal bipyramids, and  a cornercorner with one Li(1)O4 tetrahedra. The corner-sharing octahedral tilt angles are 53°. There are four inequivalent B sites. In the first B site, B(1) is bonded in a trigonal planar geometry to one O(2), one O(3), and one O(8) atom. In the second B site, B(2) is bonded in a trigonal planar geometry to one O(1), one O(4), and one O(5) atom. In the third B site, B(3) is bonded in a trigonal planar geometry to one O(11), one O(6), and one O(9) atom. In the fourth B site, B(4) is bonded in a trigonal planar geometry to one O(10), one O(12), and one O(7) atom. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded to one O(10), one O(12), one O(4), one O(5), one O(6), and one O(8) atom to form distorted SnO6 octahedra that share  a cornercorner with one Li(4)O4 tetrahedra, corners with two equivalent Li(1)O4 tetrahedra,  an edgeedge with one Sn(2)O7 pentagonal bipyramid, and  an edgeedge with one Li(3)O4 trigonal pyramid. In the second Sn site, Sn(2) is bonded to one O(1), one O(11), one O(12), one O(2), one O(3), one O(6), and one O(9) atom to form distorted SnO7 pentagonal bipyramids that share  a cornercorner with one Li(1)O4 tetrahedra, corners with three equivalent Li(4)O4 tetrahedra,  an edgeedge with one Sn(1)O6 octahedra, and  an edgeedge with one Li(3)O4 trigonal pyramid. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Li(2), one Li(4), one B(2), and one Sn(2) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Li(1), one Li(4), one B(1), and one Sn(2) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Li(2), one Li(4), one B(1), and one Sn(2) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Li(1), one Li(3), one B(2), and one Sn(1) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Li(2), one B(2), and one Sn(1) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Li(3), one B(3), one Sn(1), and one Sn(2) atom. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one Li(1), one Li(3), and one B(4) atom. In the eighth O site, O(8) is bonded in a distorted trigonal non-coplanar geometry to one Li(1), one B(1), and one Sn(1) atom. In the ninth O site, O(9) is bonded in a 3-coordinate geometry to one Li(3), one B(3), and one Sn(2) atom. In the tenth O site, O(10) is bonded in a distorted trigonal planar geometry to one Li(4), one B(4), and one Sn(1) atom. In the eleventh O site, O(11) is bonded in a 3-coordinate geometry to one Li(2), one B(3), and one Sn(2) atom. In the twelfth O site, O(12) is bonded in a distorted trigonal planar geometry to one B(4), one Sn(1), and one Sn(2) atom. is represented by the CIF file [CIF]
data_Li2Sn(BO3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.507
_cell_length_b   8.155
_cell_length_c   9.943
_cell_angle_alpha   64.181
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   474.949
_cell_formula_units_Z   4
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  0.993  0.594  0.507  1.0
  Li  Li1  1  0.498  0.430  0.983  1.0
  Li  Li2  1  0.477  0.806  0.453  1.0
  Li  Li3  1  0.523  0.806  0.953  1.0
  Li  Li4  1  0.170  0.270  0.146  1.0
  Li  Li5  1  0.007  0.594  0.007  1.0
  Li  Li6  1  0.830  0.270  0.646  1.0
  Li  Li7  1  0.502  0.430  0.483  1.0
  Sn  Sn8  1  0.204  0.823  0.172  1.0
  Sn  Sn9  1  0.796  0.823  0.672  1.0
  Sn  Sn10  1  0.710  0.191  0.308  1.0
  Sn  Sn11  1  0.290  0.191  0.808  1.0
  B  B12  1  0.091  0.469  0.808  1.0
  B  B13  1  0.606  0.535  0.698  1.0
  B  B14  1  0.575  0.071  0.121  1.0
  B  B15  1  0.081  0.927  0.389  1.0
  B  B16  1  0.425  0.071  0.621  1.0
  B  B17  1  0.919  0.927  0.889  1.0
  B  B18  1  0.909  0.469  0.308  1.0
  B  B19  1  0.394  0.535  0.198  1.0
  O  O20  1  0.547  0.366  0.712  1.0
  O  O21  1  0.055  0.393  0.708  1.0
  O  O22  1  0.223  0.359  0.925  1.0
  O  O23  1  0.713  0.649  0.567  1.0
  O  O24  1  0.578  0.614  0.795  1.0
  O  O25  1  0.447  0.006  0.041  1.0
  O  O26  1  0.192  0.777  0.467  1.0
  O  O27  1  0.020  0.631  0.797  1.0
  O  O28  1  0.571  0.982  0.276  1.0
  O  O29  1  0.097  0.017  0.233  1.0
  O  O30  1  0.686  0.228  0.064  1.0
  O  O31  1  0.932  0.995  0.454  1.0
  O  O32  1  0.553  0.006  0.541  1.0
  O  O33  1  0.808  0.777  0.967  1.0
  O  O34  1  0.429  0.982  0.776  1.0
  O  O35  1  0.903  0.017  0.733  1.0
  O  O36  1  0.453  0.366  0.212  1.0
  O  O37  1  0.314  0.228  0.564  1.0
  O  O38  1  0.068  0.995  0.954  1.0
  O  O39  1  0.945  0.393  0.208  1.0
  O  O40  1  0.777  0.359  0.425  1.0
  O  O41  1  0.287  0.649  0.067  1.0
  O  O42  1  0.422  0.614  0.295  1.0
  O  O43  1  0.980  0.631  0.297  1.0
[/CIF]
.