The compound described by Li3BSnSiO7 crystallizes in the monoclinic P2_1/m space group. There are two inequivalent Li sites. In the first Li site, Li(1) is bonded in a 4-coordinate geometry to one O(1), one O(2), and two equivalent O(4) atoms. In the second Li site, Li(2) is bonded in a 4-coordinate geometry to one O(1), one O(3), one O(4), and one O(6) atom. B(1) is bonded in a trigonal planar geometry to one O(1), one O(2), and one O(3) atom. Sn(1) is bonded to one O(2), one O(3), one O(5), one O(6), and two equivalent O(4) atoms to form SnO6 octahedra that share corners with four equivalent Si(1)O4 tetrahedra. Si(1) is bonded to one O(5), one O(6), and two equivalent O(4) atoms to form SiO4 tetrahedra that share corners with four equivalent Sn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-56°. There are six inequivalent O sites. In the first O site, O(1) is bonded to one Li(1), two equivalent Li(2), and one B(1) atom to form corner-sharing OLi3B tetrahedra. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Li(1), one B(1), and one Sn(1) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to two equivalent Li(2), one B(1), and one Sn(1) atom. In the fourth O site, O(4) is bonded to one Li(1), one Li(2), one Sn(1), and one Si(1) atom to form distorted OLi2SiSn trigonal pyramids that share corners with two equivalent O(1)Li3B tetrahedra,  a cornercorner with one O(4)Li2SiSn trigonal pyramid, and  an edgeedge with one O(4)Li2SiSn trigonal pyramid. In the fifth O site, O(5) is bonded in a distorted bent 120 degrees geometry to one Sn(1) and one Si(1) atom. In the sixth O site, O(6) is bonded in a distorted rectangular see-saw-like geometry to two equivalent Li(2), one Sn(1), and one Si(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Li3SiSnBO7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.575
_cell_length_b   5.139
_cell_length_c   8.545
_cell_angle_alpha   84.564
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   287.405
_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
  Li  Li0  1  0.750  0.251  0.907  1.0
  Li  Li1  1  0.992  0.747  0.763  1.0
  Li  Li2  1  0.508  0.747  0.763  1.0
  Li  Li3  1  0.492  0.253  0.237  1.0
  Li  Li4  1  0.008  0.253  0.237  1.0
  Li  Li5  1  0.250  0.749  0.093  1.0
  Si  Si6  1  0.750  0.269  0.580  1.0
  Si  Si7  1  0.250  0.731  0.420  1.0
  Sn  Sn8  1  0.250  0.209  0.673  1.0
  Sn  Sn9  1  0.750  0.791  0.327  1.0
  B  B10  1  0.250  0.289  0.965  1.0
  B  B11  1  0.750  0.711  0.035  1.0
  O  O12  1  0.750  0.642  0.886  1.0
  O  O13  1  0.250  0.034  0.919  1.0
  O  O14  1  0.250  0.486  0.836  1.0
  O  O15  1  0.940  0.167  0.695  1.0
  O  O16  1  0.560  0.167  0.695  1.0
  O  O17  1  0.750  0.591  0.547  1.0
  O  O18  1  0.250  0.845  0.593  1.0
  O  O19  1  0.750  0.155  0.407  1.0
  O  O20  1  0.250  0.409  0.453  1.0
  O  O21  1  0.440  0.833  0.305  1.0
  O  O22  1  0.060  0.833  0.305  1.0
  O  O23  1  0.750  0.514  0.164  1.0
  O  O24  1  0.750  0.966  0.081  1.0
  O  O25  1  0.250  0.358  0.114  1.0
[/CIF]
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The compound described by Li3BSnSiO7 crystallizes in the monoclinic P2_1/m space group. There are two inequivalent Li sites. In the first Li site, Li(1) is bonded in a 4-coordinate geometry to one O(1), one O(2), and two equivalent O(4) atoms. In the second Li site, Li(2) is bonded in a 4-coordinate geometry to one O(1), one O(3), one O(4), and one O(6) atom. B(1) is bonded in a trigonal planar geometry to one O(1), one O(2), and one O(3) atom. Sn(1) is bonded to one O(2), one O(3), one O(5), one O(6), and two equivalent O(4) atoms to form SnO6 octahedra that share corners with four equivalent Si(1)O4 tetrahedra. Si(1) is bonded to one O(5), one O(6), and two equivalent O(4) atoms to form SiO4 tetrahedra that share corners with four equivalent Sn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-56°. There are six inequivalent O sites. In the first O site, O(1) is bonded to one Li(1), two equivalent Li(2), and one B(1) atom to form corner-sharing OLi3B tetrahedra. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Li(1), one B(1), and one Sn(1) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to two equivalent Li(2), one B(1), and one Sn(1) atom. In the fourth O site, O(4) is bonded to one Li(1), one Li(2), one Sn(1), and one Si(1) atom to form distorted OLi2SiSn trigonal pyramids that share corners with two equivalent O(1)Li3B tetrahedra,  a cornercorner with one O(4)Li2SiSn trigonal pyramid, and  an edgeedge with one O(4)Li2SiSn trigonal pyramid. In the fifth O site, O(5) is bonded in a distorted bent 120 degrees geometry to one Sn(1) and one Si(1) atom. In the sixth O site, O(6) is bonded in a distorted rectangular see-saw-like geometry to two equivalent Li(2), one Sn(1), and one Si(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Li3SiSnBO7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.575
_cell_length_b   5.139
_cell_length_c   8.545
_cell_angle_alpha   84.564
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   287.405
_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
  Li  Li0  1  0.750  0.251  0.907  1.0
  Li  Li1  1  0.992  0.747  0.763  1.0
  Li  Li2  1  0.508  0.747  0.763  1.0
  Li  Li3  1  0.492  0.253  0.237  1.0
  Li  Li4  1  0.008  0.253  0.237  1.0
  Li  Li5  1  0.250  0.749  0.093  1.0
  Si  Si6  1  0.750  0.269  0.580  1.0
  Si  Si7  1  0.250  0.731  0.420  1.0
  Sn  Sn8  1  0.250  0.209  0.673  1.0
  Sn  Sn9  1  0.750  0.791  0.327  1.0
  B  B10  1  0.250  0.289  0.965  1.0
  B  B11  1  0.750  0.711  0.035  1.0
  O  O12  1  0.750  0.642  0.886  1.0
  O  O13  1  0.250  0.034  0.919  1.0
  O  O14  1  0.250  0.486  0.836  1.0
  O  O15  1  0.940  0.167  0.695  1.0
  O  O16  1  0.560  0.167  0.695  1.0
  O  O17  1  0.750  0.591  0.547  1.0
  O  O18  1  0.250  0.845  0.593  1.0
  O  O19  1  0.750  0.155  0.407  1.0
  O  O20  1  0.250  0.409  0.453  1.0
  O  O21  1  0.440  0.833  0.305  1.0
  O  O22  1  0.060  0.833  0.305  1.0
  O  O23  1  0.750  0.514  0.164  1.0
  O  O24  1  0.750  0.966  0.081  1.0
  O  O25  1  0.250  0.358  0.114  1.0
[/CIF]
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