The compound described by LiSiBiO4 crystallizes in the monoclinic P2_1/c space group. Li(1) is bonded to one O(1), one O(3), and two equivalent O(4) atoms to form LiO4 trigonal pyramids that share corners with four equivalent Si(1)O4 tetrahedra and  an edgeedge with one Li(1)O4 trigonal pyramid. Si(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form SiO4 tetrahedra that share corners with four equivalent Li(1)O4 trigonal pyramids. Bi(1) is bonded in a 7-coordinate geometry to one O(4), two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Li(1), one Si(1), and two equivalent Bi(1) atoms. In the second O site, O(2) is bonded in a distorted single-bond geometry to one Si(1) and two equivalent Bi(1) atoms. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Li(1), one Si(1), and two equivalent Bi(1) atoms. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to two equivalent Li(1), one Si(1), and one Bi(1) atom. is represented by the CIF card [CIF]
data_LiSiBiO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.409
_cell_length_b   5.622
_cell_length_c   11.185
_cell_angle_alpha   66.755
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   370.259
_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  0.635  0.926  0.928  1.0
  Li  Li1  1  0.135  0.074  0.572  1.0
  Li  Li2  1  0.865  0.926  0.428  1.0
  Li  Li3  1  0.365  0.074  0.072  1.0
  Si  Si4  1  0.651  0.092  0.640  1.0
  Si  Si5  1  0.151  0.908  0.860  1.0
  Si  Si6  1  0.849  0.092  0.140  1.0
  Si  Si7  1  0.349  0.908  0.360  1.0
  Bi  Bi8  1  0.614  0.444  0.349  1.0
  Bi  Bi9  1  0.114  0.556  0.151  1.0
  Bi  Bi10  1  0.886  0.444  0.849  1.0
  Bi  Bi11  1  0.386  0.556  0.651  1.0
  O  O12  1  0.660  0.230  0.747  1.0
  O  O13  1  0.136  0.224  0.778  1.0
  O  O14  1  0.433  0.219  0.556  1.0
  O  O15  1  0.836  0.172  0.529  1.0
  O  O16  1  0.336  0.828  0.971  1.0
  O  O17  1  0.933  0.781  0.944  1.0
  O  O18  1  0.840  0.230  0.247  1.0
  O  O19  1  0.364  0.224  0.278  1.0
  O  O20  1  0.636  0.776  0.722  1.0
  O  O21  1  0.160  0.770  0.753  1.0
  O  O22  1  0.067  0.219  0.056  1.0
  O  O23  1  0.664  0.172  0.029  1.0
  O  O24  1  0.164  0.828  0.471  1.0
  O  O25  1  0.567  0.781  0.444  1.0
  O  O26  1  0.864  0.776  0.222  1.0
  O  O27  1  0.340  0.770  0.253  1.0
[/CIF]
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The compound described by LiSiBiO4 crystallizes in the monoclinic P2_1/c space group. Li(1) is bonded to one O(1), one O(3), and two equivalent O(4) atoms to form LiO4 trigonal pyramids that share corners with four equivalent Si(1)O4 tetrahedra and  an edgeedge with one Li(1)O4 trigonal pyramid. Si(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form SiO4 tetrahedra that share corners with four equivalent Li(1)O4 trigonal pyramids. Bi(1) is bonded in a 7-coordinate geometry to one O(4), two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Li(1), one Si(1), and two equivalent Bi(1) atoms. In the second O site, O(2) is bonded in a distorted single-bond geometry to one Si(1) and two equivalent Bi(1) atoms. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Li(1), one Si(1), and two equivalent Bi(1) atoms. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to two equivalent Li(1), one Si(1), and one Bi(1) atom. is represented by the CIF card [CIF]
data_LiSiBiO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.409
_cell_length_b   5.622
_cell_length_c   11.185
_cell_angle_alpha   66.755
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   370.259
_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  0.635  0.926  0.928  1.0
  Li  Li1  1  0.135  0.074  0.572  1.0
  Li  Li2  1  0.865  0.926  0.428  1.0
  Li  Li3  1  0.365  0.074  0.072  1.0
  Si  Si4  1  0.651  0.092  0.640  1.0
  Si  Si5  1  0.151  0.908  0.860  1.0
  Si  Si6  1  0.849  0.092  0.140  1.0
  Si  Si7  1  0.349  0.908  0.360  1.0
  Bi  Bi8  1  0.614  0.444  0.349  1.0
  Bi  Bi9  1  0.114  0.556  0.151  1.0
  Bi  Bi10  1  0.886  0.444  0.849  1.0
  Bi  Bi11  1  0.386  0.556  0.651  1.0
  O  O12  1  0.660  0.230  0.747  1.0
  O  O13  1  0.136  0.224  0.778  1.0
  O  O14  1  0.433  0.219  0.556  1.0
  O  O15  1  0.836  0.172  0.529  1.0
  O  O16  1  0.336  0.828  0.971  1.0
  O  O17  1  0.933  0.781  0.944  1.0
  O  O18  1  0.840  0.230  0.247  1.0
  O  O19  1  0.364  0.224  0.278  1.0
  O  O20  1  0.636  0.776  0.722  1.0
  O  O21  1  0.160  0.770  0.753  1.0
  O  O22  1  0.067  0.219  0.056  1.0
  O  O23  1  0.664  0.172  0.029  1.0
  O  O24  1  0.164  0.828  0.471  1.0
  O  O25  1  0.567  0.781  0.444  1.0
  O  O26  1  0.864  0.776  0.222  1.0
  O  O27  1  0.340  0.770  0.253  1.0
[/CIF]
.