The structure described by Li6V(SiO4)2 crystallizes in the monoclinic Pc space group. There are six inequivalent Li sites. In the first Li site, Li(1) is bonded to one O(1), one O(3), one O(4), and one O(7) atom to form LiO4 tetrahedra that share  a cornercorner with one Li(2)O4 tetrahedra,  a cornercorner with one Li(3)O4 tetrahedra,  a cornercorner with one Si(2)O4 tetrahedra, corners with three equivalent Si(1)O4 tetrahedra, corners with four equivalent Li(6)O4 tetrahedra, and  an edgeedge with one Li(3)O4 tetrahedra. In the second Li site, Li(2) is bonded to one O(2), one O(4), one O(5), and one O(8) atom to form LiO4 tetrahedra that share  a cornercorner with one Li(1)O4 tetrahedra,  a cornercorner with one Li(5)O4 tetrahedra,  a cornercorner with one Li(6)O4 tetrahedra,  a cornercorner with one V(1)O4 tetrahedra, corners with two equivalent Si(1)O4 tetrahedra, corners with two equivalent Si(2)O4 tetrahedra,  an edgeedge with one Li(5)O4 tetrahedra, and  an edgeedge with one V(1)O4 tetrahedra. In the third Li site, Li(3) is bonded to one O(1), one O(3), one O(6), and one O(7) atom to form distorted LiO4 tetrahedra that share  a cornercorner with one Li(1)O4 tetrahedra,  a cornercorner with one Li(5)O4 tetrahedra,  a cornercorner with one Li(6)O4 tetrahedra,  a cornercorner with one V(1)O4 tetrahedra, corners with two equivalent Si(1)O4 tetrahedra, corners with two equivalent Si(2)O4 tetrahedra,  an edgeedge with one Li(1)O4 tetrahedra, and  an edgeedge with one Li(6)O4 tetrahedra. In the fourth Li site, Li(4) is bonded in a 3-coordinate geometry to one O(3), one O(7), and two equivalent O(1) atoms. In the fifth Li site, Li(5) is bonded to one O(2), one O(5), one O(6), and one O(8) atom to form LiO4 tetrahedra that share  a cornercorner with one Li(2)O4 tetrahedra,  a cornercorner with one Li(3)O4 tetrahedra,  a cornercorner with one Si(1)O4 tetrahedra, corners with three equivalent Si(2)O4 tetrahedra, corners with four equivalent V(1)O4 tetrahedra, and  an edgeedge with one Li(2)O4 tetrahedra. In the sixth Li site, Li(6) is bonded to one O(1), one O(3), one O(4), and one O(7) atom to form distorted LiO4 tetrahedra that share  a cornercorner with one Li(2)O4 tetrahedra,  a cornercorner with one Li(3)O4 tetrahedra,  a cornercorner with one Si(2)O4 tetrahedra, corners with three equivalent Si(1)O4 tetrahedra, corners with four equivalent Li(1)O4 tetrahedra, and  an edgeedge with one Li(3)O4 tetrahedra. V(1) is bonded to one O(2), one O(5), one O(6), and one O(8) atom to form distorted VO4 tetrahedra that share  a cornercorner with one Li(2)O4 tetrahedra,  a cornercorner with one Li(3)O4 tetrahedra,  a cornercorner with one Si(1)O4 tetrahedra, corners with three equivalent Si(2)O4 tetrahedra, corners with four equivalent Li(5)O4 tetrahedra, and  an edgeedge with one Li(2)O4 tetrahedra. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded to one O(1), one O(4), one O(5), and one O(7) atom to form SiO4 tetrahedra that share  a cornercorner with one Li(5)O4 tetrahedra,  a cornercorner with one V(1)O4 tetrahedra, corners with two equivalent Li(2)O4 tetrahedra, corners with two equivalent Li(3)O4 tetrahedra, corners with three equivalent Li(1)O4 tetrahedra, and corners with three equivalent Li(6)O4 tetrahedra. In the second Si site, Si(2) is bonded to one O(2), one O(3), one O(6), and one O(8) atom to form SiO4 tetrahedra that share  a cornercorner with one Li(1)O4 tetrahedra,  a cornercorner with one Li(6)O4 tetrahedra, corners with two equivalent Li(2)O4 tetrahedra, corners with two equivalent Li(3)O4 tetrahedra, corners with three equivalent Li(5)O4 tetrahedra, and corners with three equivalent V(1)O4 tetrahedra. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a 6-coordinate geometry to one Li(1), one Li(3), one Li(6), two equivalent Li(4), and one Si(1) atom. In the second O site, O(2) is bonded to one Li(2), one Li(5), one V(1), and one Si(2) atom to form distorted OLi2VSi tetrahedra that share  a cornercorner with one O(4)Li3Si tetrahedra, corners with three equivalent O(6)Li2VSi tetrahedra, and corners with four equivalent O(8)Li2VSi tetrahedra. In the third O site, O(3) is bonded in a 5-coordinate geometry to one Li(1), one Li(3), one Li(4), one Li(6), and one Si(2) atom. In the fourth O site, O(4) is bonded to one Li(1), one Li(2), one Li(6), and one Si(1) atom to form corner-sharing OLi3Si tetrahedra. In the fifth O site, O(5) is bonded in a distorted rectangular see-saw-like geometry to one Li(2), one Li(5), one V(1), and one Si(1) atom. In the sixth O site, O(6) is bonded to one Li(3), one Li(5), one V(1), and one Si(2) atom to form corner-sharing OLi2VSi tetrahedra. In the seventh O site, O(7) is bonded in a 5-coordinate geometry to one Li(1), one Li(3), one Li(4), one Li(6), and one Si(1) atom. In the eighth O site, O(8) is bonded to one Li(2), one Li(5), one V(1), and one Si(2) atom to form distorted OLi2VSi tetrahedra that share  a cornercorner with one O(4)Li3Si tetrahedra, corners with three equivalent O(6)Li2VSi tetrahedra, and corners with four equivalent O(2)Li2VSi tetrahedra. is represented by the CIF file [CIF]
data_Li6V(SiO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.054
_cell_length_b   5.129
_cell_length_c   7.945
_cell_angle_alpha   51.473
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   352.378
_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  0.593  0.126  0.019  1.0
  Li  Li1  1  0.813  0.949  0.249  1.0
  Li  Li2  1  0.324  0.107  0.239  1.0
  Li  Li3  1  0.444  0.673  0.304  1.0
  Li  Li4  1  0.097  0.805  0.505  1.0
  Li  Li5  1  0.597  0.690  0.491  1.0
  Li  Li6  1  0.407  0.126  0.519  1.0
  Li  Li7  1  0.676  0.107  0.739  1.0
  Li  Li8  1  0.187  0.949  0.749  1.0
  Li  Li9  1  0.556  0.673  0.804  1.0
  Li  Li10  1  0.903  0.805  0.005  1.0
  Li  Li11  1  0.403  0.690  0.991  1.0
  V  V12  1  0.077  0.305  0.996  1.0
  V  V13  1  0.923  0.305  0.496  1.0
  Si  Si14  1  0.653  0.422  0.248  1.0
  Si  Si15  1  0.174  0.577  0.250  1.0
  Si  Si16  1  0.826  0.577  0.750  1.0
  Si  Si17  1  0.347  0.422  0.748  1.0
  O  O18  1  0.582  0.742  0.027  1.0
  O  O19  1  0.093  0.690  0.035  1.0
  O  O20  1  0.314  0.471  0.252  1.0
  O  O21  1  0.658  0.102  0.250  1.0
  O  O22  1  0.791  0.544  0.255  1.0
  O  O23  1  0.175  0.898  0.252  1.0
  O  O24  1  0.575  0.328  0.460  1.0
  O  O25  1  0.104  0.255  0.466  1.0
  O  O26  1  0.907  0.690  0.535  1.0
  O  O27  1  0.418  0.742  0.527  1.0
  O  O28  1  0.825  0.898  0.752  1.0
  O  O29  1  0.342  0.102  0.750  1.0
  O  O30  1  0.686  0.471  0.752  1.0
  O  O31  1  0.209  0.544  0.755  1.0
  O  O32  1  0.896  0.255  0.966  1.0
  O  O33  1  0.425  0.328  0.960  1.0
[/CIF]
.
The structure described by Li6V(SiO4)2 crystallizes in the monoclinic Pc space group. There are six inequivalent Li sites. In the first Li site, Li(1) is bonded to one O(1), one O(3), one O(4), and one O(7) atom to form LiO4 tetrahedra that share  a cornercorner with one Li(2)O4 tetrahedra,  a cornercorner with one Li(3)O4 tetrahedra,  a cornercorner with one Si(2)O4 tetrahedra, corners with three equivalent Si(1)O4 tetrahedra, corners with four equivalent Li(6)O4 tetrahedra, and  an edgeedge with one Li(3)O4 tetrahedra. In the second Li site, Li(2) is bonded to one O(2), one O(4), one O(5), and one O(8) atom to form LiO4 tetrahedra that share  a cornercorner with one Li(1)O4 tetrahedra,  a cornercorner with one Li(5)O4 tetrahedra,  a cornercorner with one Li(6)O4 tetrahedra,  a cornercorner with one V(1)O4 tetrahedra, corners with two equivalent Si(1)O4 tetrahedra, corners with two equivalent Si(2)O4 tetrahedra,  an edgeedge with one Li(5)O4 tetrahedra, and  an edgeedge with one V(1)O4 tetrahedra. In the third Li site, Li(3) is bonded to one O(1), one O(3), one O(6), and one O(7) atom to form distorted LiO4 tetrahedra that share  a cornercorner with one Li(1)O4 tetrahedra,  a cornercorner with one Li(5)O4 tetrahedra,  a cornercorner with one Li(6)O4 tetrahedra,  a cornercorner with one V(1)O4 tetrahedra, corners with two equivalent Si(1)O4 tetrahedra, corners with two equivalent Si(2)O4 tetrahedra,  an edgeedge with one Li(1)O4 tetrahedra, and  an edgeedge with one Li(6)O4 tetrahedra. In the fourth Li site, Li(4) is bonded in a 3-coordinate geometry to one O(3), one O(7), and two equivalent O(1) atoms. In the fifth Li site, Li(5) is bonded to one O(2), one O(5), one O(6), and one O(8) atom to form LiO4 tetrahedra that share  a cornercorner with one Li(2)O4 tetrahedra,  a cornercorner with one Li(3)O4 tetrahedra,  a cornercorner with one Si(1)O4 tetrahedra, corners with three equivalent Si(2)O4 tetrahedra, corners with four equivalent V(1)O4 tetrahedra, and  an edgeedge with one Li(2)O4 tetrahedra. In the sixth Li site, Li(6) is bonded to one O(1), one O(3), one O(4), and one O(7) atom to form distorted LiO4 tetrahedra that share  a cornercorner with one Li(2)O4 tetrahedra,  a cornercorner with one Li(3)O4 tetrahedra,  a cornercorner with one Si(2)O4 tetrahedra, corners with three equivalent Si(1)O4 tetrahedra, corners with four equivalent Li(1)O4 tetrahedra, and  an edgeedge with one Li(3)O4 tetrahedra. V(1) is bonded to one O(2), one O(5), one O(6), and one O(8) atom to form distorted VO4 tetrahedra that share  a cornercorner with one Li(2)O4 tetrahedra,  a cornercorner with one Li(3)O4 tetrahedra,  a cornercorner with one Si(1)O4 tetrahedra, corners with three equivalent Si(2)O4 tetrahedra, corners with four equivalent Li(5)O4 tetrahedra, and  an edgeedge with one Li(2)O4 tetrahedra. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded to one O(1), one O(4), one O(5), and one O(7) atom to form SiO4 tetrahedra that share  a cornercorner with one Li(5)O4 tetrahedra,  a cornercorner with one V(1)O4 tetrahedra, corners with two equivalent Li(2)O4 tetrahedra, corners with two equivalent Li(3)O4 tetrahedra, corners with three equivalent Li(1)O4 tetrahedra, and corners with three equivalent Li(6)O4 tetrahedra. In the second Si site, Si(2) is bonded to one O(2), one O(3), one O(6), and one O(8) atom to form SiO4 tetrahedra that share  a cornercorner with one Li(1)O4 tetrahedra,  a cornercorner with one Li(6)O4 tetrahedra, corners with two equivalent Li(2)O4 tetrahedra, corners with two equivalent Li(3)O4 tetrahedra, corners with three equivalent Li(5)O4 tetrahedra, and corners with three equivalent V(1)O4 tetrahedra. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a 6-coordinate geometry to one Li(1), one Li(3), one Li(6), two equivalent Li(4), and one Si(1) atom. In the second O site, O(2) is bonded to one Li(2), one Li(5), one V(1), and one Si(2) atom to form distorted OLi2VSi tetrahedra that share  a cornercorner with one O(4)Li3Si tetrahedra, corners with three equivalent O(6)Li2VSi tetrahedra, and corners with four equivalent O(8)Li2VSi tetrahedra. In the third O site, O(3) is bonded in a 5-coordinate geometry to one Li(1), one Li(3), one Li(4), one Li(6), and one Si(2) atom. In the fourth O site, O(4) is bonded to one Li(1), one Li(2), one Li(6), and one Si(1) atom to form corner-sharing OLi3Si tetrahedra. In the fifth O site, O(5) is bonded in a distorted rectangular see-saw-like geometry to one Li(2), one Li(5), one V(1), and one Si(1) atom. In the sixth O site, O(6) is bonded to one Li(3), one Li(5), one V(1), and one Si(2) atom to form corner-sharing OLi2VSi tetrahedra. In the seventh O site, O(7) is bonded in a 5-coordinate geometry to one Li(1), one Li(3), one Li(4), one Li(6), and one Si(1) atom. In the eighth O site, O(8) is bonded to one Li(2), one Li(5), one V(1), and one Si(2) atom to form distorted OLi2VSi tetrahedra that share  a cornercorner with one O(4)Li3Si tetrahedra, corners with three equivalent O(6)Li2VSi tetrahedra, and corners with four equivalent O(2)Li2VSi tetrahedra. is represented by the CIF file [CIF]
data_Li6V(SiO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.054
_cell_length_b   5.129
_cell_length_c   7.945
_cell_angle_alpha   51.473
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   352.378
_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  0.593  0.126  0.019  1.0
  Li  Li1  1  0.813  0.949  0.249  1.0
  Li  Li2  1  0.324  0.107  0.239  1.0
  Li  Li3  1  0.444  0.673  0.304  1.0
  Li  Li4  1  0.097  0.805  0.505  1.0
  Li  Li5  1  0.597  0.690  0.491  1.0
  Li  Li6  1  0.407  0.126  0.519  1.0
  Li  Li7  1  0.676  0.107  0.739  1.0
  Li  Li8  1  0.187  0.949  0.749  1.0
  Li  Li9  1  0.556  0.673  0.804  1.0
  Li  Li10  1  0.903  0.805  0.005  1.0
  Li  Li11  1  0.403  0.690  0.991  1.0
  V  V12  1  0.077  0.305  0.996  1.0
  V  V13  1  0.923  0.305  0.496  1.0
  Si  Si14  1  0.653  0.422  0.248  1.0
  Si  Si15  1  0.174  0.577  0.250  1.0
  Si  Si16  1  0.826  0.577  0.750  1.0
  Si  Si17  1  0.347  0.422  0.748  1.0
  O  O18  1  0.582  0.742  0.027  1.0
  O  O19  1  0.093  0.690  0.035  1.0
  O  O20  1  0.314  0.471  0.252  1.0
  O  O21  1  0.658  0.102  0.250  1.0
  O  O22  1  0.791  0.544  0.255  1.0
  O  O23  1  0.175  0.898  0.252  1.0
  O  O24  1  0.575  0.328  0.460  1.0
  O  O25  1  0.104  0.255  0.466  1.0
  O  O26  1  0.907  0.690  0.535  1.0
  O  O27  1  0.418  0.742  0.527  1.0
  O  O28  1  0.825  0.898  0.752  1.0
  O  O29  1  0.342  0.102  0.750  1.0
  O  O30  1  0.686  0.471  0.752  1.0
  O  O31  1  0.209  0.544  0.755  1.0
  O  O32  1  0.896  0.255  0.966  1.0
  O  O33  1  0.425  0.328  0.960  1.0
[/CIF]
.