The compound described by LiSn2P5O16 crystallizes in the monoclinic Pc space group. Li(1) is bonded to one O(10), one O(11), one O(14), one O(2), and one O(8) atom to form distorted LiO5 trigonal bipyramids that share  a cornercorner with one Sn(1)O6 octahedra, corners with two equivalent Sn(2)O6 octahedra,  a cornercorner with one P(5)O4 tetrahedra, corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, and  an edgeedge with one Sn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 58-76°. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded to one O(10), one O(11), one O(13), one O(3), one O(8), and one O(9) atom to form SnO6 octahedra that share  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra, corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra,  a cornercorner with one Li(1)O5 trigonal bipyramid, and  an edgeedge with one Li(1)O5 trigonal bipyramid. In the second Sn site, Sn(2) is bonded to one O(12), one O(14), one O(15), one O(16), one O(2), and one O(7) atom to form SnO6 octahedra that share  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra, corners with two equivalent P(4)O4 tetrahedra, corners with two equivalent P(5)O4 tetrahedra, and corners with two equivalent Li(1)O5 trigonal bipyramids. There are five inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(10), one O(11), and one O(6) atom to form PO4 tetrahedra that share corners with two equivalent Sn(1)O6 octahedra,  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra, and corners with two equivalent Li(1)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 44-52°. In the second P site, P(2) is bonded to one O(13), one O(2), one O(6), and one O(8) atom to form PO4 tetrahedra that share  a cornercorner with one Sn(2)O6 octahedra, corners with two equivalent Sn(1)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra, and corners with two equivalent Li(1)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 53-66°. In the third P site, P(3) is bonded to one O(1), one O(3), one O(4), and one O(7) atom to form PO4 tetrahedra that share  a cornercorner with one Sn(1)O6 octahedra,  a cornercorner with one Sn(2)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra, and  a cornercorner with one P(5)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 42-43°. In the fourth P site, P(4) is bonded to one O(12), one O(16), one O(5), and one O(9) atom to form PO4 tetrahedra that share  a cornercorner with one Sn(1)O6 octahedra, corners with two equivalent Sn(2)O6 octahedra, and  a cornercorner with one P(5)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 47-55°. In the fifth P site, P(5) is bonded to one O(14), one O(15), one O(4), and one O(5) atom to form PO4 tetrahedra that share corners with two equivalent Sn(2)O6 octahedra,  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra, and  a cornercorner with one Li(1)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 52-53°. There are sixteen inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one P(1) and one P(3) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Li(1), one Sn(2), and one P(2) atom. In the third O site, O(3) is bonded in a distorted bent 150 degrees geometry to one Sn(1) and one P(3) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one P(3) and one P(5) atom. In the fifth O site, O(5) is bonded in a distorted bent 150 degrees geometry to one P(4) and one P(5) atom. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to one P(1) and one P(2) atom. In the seventh O site, O(7) is bonded in a distorted bent 150 degrees geometry to one Sn(2) and one P(3) atom. In the eighth O site, O(8) is bonded in a distorted trigonal planar geometry to one Li(1), one Sn(1), and one P(2) atom. In the ninth O site, O(9) is bonded in a bent 120 degrees geometry to one Sn(1) and one P(4) atom. In the tenth O site, O(10) is bonded in a 3-coordinate geometry to one Li(1), one Sn(1), and one P(1) atom. In the eleventh O site, O(11) is bonded in a 3-coordinate geometry to one Li(1), one Sn(1), and one P(1) atom. In the twelfth O site, O(12) is bonded in a distorted bent 120 degrees geometry to one Sn(2) and one P(4) atom. In the thirteenth O site, O(13) is bonded in a bent 120 degrees geometry to one Sn(1) and one P(2) atom. In the fourteenth O site, O(14) is bonded in a 3-coordinate geometry to one Li(1), one Sn(2), and one P(5) atom. In the fifteenth O site, O(15) is bonded in a distorted bent 120 degrees geometry to one Sn(2) and one P(5) atom. In the sixteenth O site, O(16) is bonded in a distorted bent 120 degrees geometry to one Sn(2) and one P(4) atom. is represented by the CIF card [CIF]
data_LiSn2P5O16
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.190
_cell_length_b   5.201
_cell_length_c   19.045
_cell_angle_alpha   87.535
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   711.613
_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  0.631  0.791  0.034  1.0
  Li  Li1  1  0.369  0.791  0.534  1.0
  Sn  Sn2  1  0.839  0.744  0.589  1.0
  Sn  Sn3  1  0.841  0.256  0.909  1.0
  Sn  Sn4  1  0.161  0.744  0.089  1.0
  Sn  Sn5  1  0.159  0.256  0.409  1.0
  P  P6  1  0.474  0.262  0.132  1.0
  P  P7  1  0.149  0.268  0.587  1.0
  P  P8  1  0.526  0.262  0.632  1.0
  P  P9  1  0.260  0.005  0.251  1.0
  P  P10  1  0.860  0.746  0.414  1.0
  P  P11  1  0.140  0.746  0.914  1.0
  P  P12  1  0.465  0.724  0.370  1.0
  P  P13  1  0.535  0.724  0.870  1.0
  P  P14  1  0.740  0.005  0.751  1.0
  P  P15  1  0.851  0.268  0.087  1.0
  O  O16  1  0.392  0.210  0.209  1.0
  O  O17  1  0.224  0.434  0.524  1.0
  O  O18  1  0.776  0.434  0.024  1.0
  O  O19  1  0.608  0.210  0.709  1.0
  O  O20  1  0.154  0.840  0.202  1.0
  O  O21  1  0.412  0.831  0.292  1.0
  O  O22  1  0.684  0.747  0.361  1.0
  O  O23  1  0.692  0.274  0.149  1.0
  O  O24  1  0.857  0.152  0.801  1.0
  O  O25  1  0.870  0.982  0.071  1.0
  O  O26  1  0.206  0.607  0.983  1.0
  O  O27  1  0.431  0.046  0.084  1.0
  O  O28  1  0.421  0.534  0.108  1.0
  O  O29  1  0.096  0.031  0.922  1.0
  O  O30  1  0.026  0.383  0.120  1.0
  O  O31  1  0.569  0.046  0.584  1.0
  O  O32  1  0.385  0.888  0.426  1.0
  O  O33  1  0.316  0.747  0.861  1.0
  O  O34  1  0.579  0.534  0.608  1.0
  O  O35  1  0.130  0.982  0.571  1.0
  O  O36  1  0.419  0.439  0.376  1.0
  O  O37  1  0.014  0.600  0.377  1.0
  O  O38  1  0.308  0.274  0.649  1.0
  O  O39  1  0.904  0.031  0.422  1.0
  O  O40  1  0.794  0.607  0.483  1.0
  O  O41  1  0.615  0.888  0.926  1.0
  O  O42  1  0.986  0.600  0.877  1.0
  O  O43  1  0.581  0.439  0.876  1.0
  O  O44  1  0.143  0.152  0.301  1.0
  O  O45  1  0.974  0.383  0.620  1.0
  O  O46  1  0.588  0.831  0.792  1.0
  O  O47  1  0.846  0.840  0.702  1.0
[/CIF]
.
The compound described by LiSn2P5O16 crystallizes in the monoclinic Pc space group. Li(1) is bonded to one O(10), one O(11), one O(14), one O(2), and one O(8) atom to form distorted LiO5 trigonal bipyramids that share  a cornercorner with one Sn(1)O6 octahedra, corners with two equivalent Sn(2)O6 octahedra,  a cornercorner with one P(5)O4 tetrahedra, corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, and  an edgeedge with one Sn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 58-76°. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded to one O(10), one O(11), one O(13), one O(3), one O(8), and one O(9) atom to form SnO6 octahedra that share  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra, corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra,  a cornercorner with one Li(1)O5 trigonal bipyramid, and  an edgeedge with one Li(1)O5 trigonal bipyramid. In the second Sn site, Sn(2) is bonded to one O(12), one O(14), one O(15), one O(16), one O(2), and one O(7) atom to form SnO6 octahedra that share  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra, corners with two equivalent P(4)O4 tetrahedra, corners with two equivalent P(5)O4 tetrahedra, and corners with two equivalent Li(1)O5 trigonal bipyramids. There are five inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(10), one O(11), and one O(6) atom to form PO4 tetrahedra that share corners with two equivalent Sn(1)O6 octahedra,  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra, and corners with two equivalent Li(1)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 44-52°. In the second P site, P(2) is bonded to one O(13), one O(2), one O(6), and one O(8) atom to form PO4 tetrahedra that share  a cornercorner with one Sn(2)O6 octahedra, corners with two equivalent Sn(1)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra, and corners with two equivalent Li(1)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 53-66°. In the third P site, P(3) is bonded to one O(1), one O(3), one O(4), and one O(7) atom to form PO4 tetrahedra that share  a cornercorner with one Sn(1)O6 octahedra,  a cornercorner with one Sn(2)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra, and  a cornercorner with one P(5)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 42-43°. In the fourth P site, P(4) is bonded to one O(12), one O(16), one O(5), and one O(9) atom to form PO4 tetrahedra that share  a cornercorner with one Sn(1)O6 octahedra, corners with two equivalent Sn(2)O6 octahedra, and  a cornercorner with one P(5)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 47-55°. In the fifth P site, P(5) is bonded to one O(14), one O(15), one O(4), and one O(5) atom to form PO4 tetrahedra that share corners with two equivalent Sn(2)O6 octahedra,  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra, and  a cornercorner with one Li(1)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 52-53°. There are sixteen inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one P(1) and one P(3) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Li(1), one Sn(2), and one P(2) atom. In the third O site, O(3) is bonded in a distorted bent 150 degrees geometry to one Sn(1) and one P(3) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one P(3) and one P(5) atom. In the fifth O site, O(5) is bonded in a distorted bent 150 degrees geometry to one P(4) and one P(5) atom. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to one P(1) and one P(2) atom. In the seventh O site, O(7) is bonded in a distorted bent 150 degrees geometry to one Sn(2) and one P(3) atom. In the eighth O site, O(8) is bonded in a distorted trigonal planar geometry to one Li(1), one Sn(1), and one P(2) atom. In the ninth O site, O(9) is bonded in a bent 120 degrees geometry to one Sn(1) and one P(4) atom. In the tenth O site, O(10) is bonded in a 3-coordinate geometry to one Li(1), one Sn(1), and one P(1) atom. In the eleventh O site, O(11) is bonded in a 3-coordinate geometry to one Li(1), one Sn(1), and one P(1) atom. In the twelfth O site, O(12) is bonded in a distorted bent 120 degrees geometry to one Sn(2) and one P(4) atom. In the thirteenth O site, O(13) is bonded in a bent 120 degrees geometry to one Sn(1) and one P(2) atom. In the fourteenth O site, O(14) is bonded in a 3-coordinate geometry to one Li(1), one Sn(2), and one P(5) atom. In the fifteenth O site, O(15) is bonded in a distorted bent 120 degrees geometry to one Sn(2) and one P(5) atom. In the sixteenth O site, O(16) is bonded in a distorted bent 120 degrees geometry to one Sn(2) and one P(4) atom. is represented by the CIF card [CIF]
data_LiSn2P5O16
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.190
_cell_length_b   5.201
_cell_length_c   19.045
_cell_angle_alpha   87.535
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   711.613
_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  0.631  0.791  0.034  1.0
  Li  Li1  1  0.369  0.791  0.534  1.0
  Sn  Sn2  1  0.839  0.744  0.589  1.0
  Sn  Sn3  1  0.841  0.256  0.909  1.0
  Sn  Sn4  1  0.161  0.744  0.089  1.0
  Sn  Sn5  1  0.159  0.256  0.409  1.0
  P  P6  1  0.474  0.262  0.132  1.0
  P  P7  1  0.149  0.268  0.587  1.0
  P  P8  1  0.526  0.262  0.632  1.0
  P  P9  1  0.260  0.005  0.251  1.0
  P  P10  1  0.860  0.746  0.414  1.0
  P  P11  1  0.140  0.746  0.914  1.0
  P  P12  1  0.465  0.724  0.370  1.0
  P  P13  1  0.535  0.724  0.870  1.0
  P  P14  1  0.740  0.005  0.751  1.0
  P  P15  1  0.851  0.268  0.087  1.0
  O  O16  1  0.392  0.210  0.209  1.0
  O  O17  1  0.224  0.434  0.524  1.0
  O  O18  1  0.776  0.434  0.024  1.0
  O  O19  1  0.608  0.210  0.709  1.0
  O  O20  1  0.154  0.840  0.202  1.0
  O  O21  1  0.412  0.831  0.292  1.0
  O  O22  1  0.684  0.747  0.361  1.0
  O  O23  1  0.692  0.274  0.149  1.0
  O  O24  1  0.857  0.152  0.801  1.0
  O  O25  1  0.870  0.982  0.071  1.0
  O  O26  1  0.206  0.607  0.983  1.0
  O  O27  1  0.431  0.046  0.084  1.0
  O  O28  1  0.421  0.534  0.108  1.0
  O  O29  1  0.096  0.031  0.922  1.0
  O  O30  1  0.026  0.383  0.120  1.0
  O  O31  1  0.569  0.046  0.584  1.0
  O  O32  1  0.385  0.888  0.426  1.0
  O  O33  1  0.316  0.747  0.861  1.0
  O  O34  1  0.579  0.534  0.608  1.0
  O  O35  1  0.130  0.982  0.571  1.0
  O  O36  1  0.419  0.439  0.376  1.0
  O  O37  1  0.014  0.600  0.377  1.0
  O  O38  1  0.308  0.274  0.649  1.0
  O  O39  1  0.904  0.031  0.422  1.0
  O  O40  1  0.794  0.607  0.483  1.0
  O  O41  1  0.615  0.888  0.926  1.0
  O  O42  1  0.986  0.600  0.877  1.0
  O  O43  1  0.581  0.439  0.876  1.0
  O  O44  1  0.143  0.152  0.301  1.0
  O  O45  1  0.974  0.383  0.620  1.0
  O  O46  1  0.588  0.831  0.792  1.0
  O  O47  1  0.846  0.840  0.702  1.0
[/CIF]
.