The material structure described by LiSnP2O7 crystallizes in the monoclinic Cc space group. There are two inequivalent Li sites. In the first Li site, Li(1) is bonded to one O(13), one O(3), one O(7), and one O(8) atom to form distorted LiO4 tetrahedra that share  a cornercorner with one Li(2)O4 tetrahedra,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra, and  a cornercorner with one P(4)O4 tetrahedra. In the second Li site, Li(2) is bonded to one O(1), one O(13), one O(2), and one O(6) atom to form distorted LiO4 tetrahedra that share  a cornercorner with one Li(1)O4 tetrahedra,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra, and  a cornercorner with one P(4)O4 tetrahedra. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 3-coordinate geometry to one O(3), one O(7), and one O(9) atom. In the second Sn site, Sn(2) is bonded in a 3-coordinate geometry to one O(10), one O(12), and one O(4) atom. There are four inequivalent P sites. In the first P site, P(1) is bonded to one O(12), one O(13), one O(5), and one O(9) atom to form PO4 tetrahedra that share  a cornercorner with one Li(1)O4 tetrahedra,  a cornercorner with one Li(2)O4 tetrahedra, and  a cornercorner with one P(4)O4 tetrahedra. In the second P site, P(2) is bonded to one O(10), one O(14), one O(6), and one O(8) atom to form PO4 tetrahedra that share  a cornercorner with one Li(1)O4 tetrahedra,  a cornercorner with one Li(2)O4 tetrahedra, and  a cornercorner with one P(3)O4 tetrahedra. In the third P site, P(3) is bonded to one O(14), one O(2), one O(3), and one O(4) atom to form PO4 tetrahedra that share  a cornercorner with one Li(1)O4 tetrahedra,  a cornercorner with one Li(2)O4 tetrahedra, and  a cornercorner with one P(2)O4 tetrahedra. In the fourth P site, P(4) is bonded to one O(1), one O(11), one O(5), and one O(7) atom to form PO4 tetrahedra that share  a cornercorner with one Li(1)O4 tetrahedra,  a cornercorner with one Li(2)O4 tetrahedra, and  a cornercorner with one P(1)O4 tetrahedra. There are fourteen inequivalent O sites. In the first O site, O(1) is bonded in a 2-coordinate geometry to one Li(2) and one P(4) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one Li(2) and one P(3) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Li(1), one Sn(1), and one P(3) atom. In the fourth O site, O(4) is bonded in a distorted bent 150 degrees geometry to one Sn(2) and one P(3) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one P(1) and one P(4) atom. In the sixth O site, O(6) is bonded in a distorted bent 120 degrees geometry to one Li(2) and one P(2) atom. In the seventh O site, O(7) is bonded in a distorted trigonal non-coplanar geometry to one Li(1), one Sn(1), and one P(4) atom. In the eighth O site, O(8) is bonded in a water-like geometry to one Li(1) and one P(2) atom. In the ninth O site, O(9) is bonded in a distorted bent 150 degrees geometry to one Sn(1) and one P(1) atom. In the tenth O site, O(10) is bonded in a distorted bent 150 degrees geometry to one Sn(2) and one P(2) atom. In the eleventh O site, O(11) is bonded in a single-bond geometry to one P(4) atom. In the twelfth O site, O(12) is bonded in a distorted bent 120 degrees geometry to one Sn(2) and one P(1) atom. In the thirteenth O site, O(13) is bonded in a distorted trigonal planar geometry to one Li(1), one Li(2), and one P(1) atom. In the fourteenth O site, O(14) is bonded in a bent 120 degrees geometry to one P(2) and one P(3) atom. is represented by the CIF card [CIF]
data_LiSnP2O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.371
_cell_length_b   7.371
_cell_length_c   12.494
_cell_angle_alpha   89.786
_cell_angle_beta   89.786
_cell_angle_gamma   122.246
_symmetry_Int_Tables_number   1
_cell_volume   574.156
_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  0.258  0.717  0.011  1.0
  Li  Li1  1  0.292  0.720  0.746  1.0
  Li  Li2  1  0.720  0.292  0.246  1.0
  Li  Li3  1  0.717  0.258  0.511  1.0
  Sn  Sn4  1  0.343  0.342  0.622  1.0
  Sn  Sn5  1  0.342  0.343  0.122  1.0
  Sn  Sn6  1  0.645  0.626  0.877  1.0
  Sn  Sn7  1  0.626  0.645  0.377  1.0
  P  P8  1  0.100  0.342  0.354  1.0
  P  P9  1  0.922  0.733  0.112  1.0
  P  P10  1  0.903  0.660  0.647  1.0
  P  P11  1  0.660  0.903  0.147  1.0
  P  P12  1  0.268  0.071  0.388  1.0
  P  P13  1  0.071  0.268  0.888  1.0
  P  P14  1  0.733  0.922  0.612  1.0
  P  P15  1  0.342  0.100  0.854  1.0
  O  O16  1  0.246  0.444  0.809  1.0
  O  O17  1  0.107  0.671  0.624  1.0
  O  O18  1  0.507  0.707  0.074  1.0
  O  O19  1  0.840  0.605  0.767  1.0
  O  O20  1  0.110  0.068  0.880  1.0
  O  O21  1  0.563  0.756  0.693  1.0
  O  O22  1  0.368  0.142  0.501  1.0
  O  O23  1  0.154  0.813  0.126  1.0
  O  O24  1  0.756  0.563  0.193  1.0
  O  O25  1  0.068  0.110  0.380  1.0
  O  O26  1  0.392  0.155  0.734  1.0
  O  O27  1  0.671  0.107  0.124  1.0
  O  O28  1  0.707  0.507  0.574  1.0
  O  O29  1  0.605  0.840  0.267  1.0
  O  O30  1  0.856  0.654  0.995  1.0
  O  O31  1  0.142  0.368  0.001  1.0
  O  O32  1  0.840  0.171  0.864  1.0
  O  O33  1  0.155  0.392  0.234  1.0
  O  O34  1  0.813  0.154  0.626  1.0
  O  O35  1  0.498  0.299  0.924  1.0
  O  O36  1  0.325  0.893  0.881  1.0
  O  O37  1  0.654  0.856  0.495  1.0
  O  O38  1  0.299  0.498  0.424  1.0
  O  O39  1  0.939  0.896  0.626  1.0
  O  O40  1  0.896  0.939  0.126  1.0
  O  O41  1  0.893  0.325  0.381  1.0
  O  O42  1  0.171  0.840  0.364  1.0
  O  O43  1  0.444  0.246  0.309  1.0
[/CIF]
.
The material structure described by LiSnP2O7 crystallizes in the monoclinic Cc space group. There are two inequivalent Li sites. In the first Li site, Li(1) is bonded to one O(13), one O(3), one O(7), and one O(8) atom to form distorted LiO4 tetrahedra that share  a cornercorner with one Li(2)O4 tetrahedra,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra, and  a cornercorner with one P(4)O4 tetrahedra. In the second Li site, Li(2) is bonded to one O(1), one O(13), one O(2), and one O(6) atom to form distorted LiO4 tetrahedra that share  a cornercorner with one Li(1)O4 tetrahedra,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra, and  a cornercorner with one P(4)O4 tetrahedra. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 3-coordinate geometry to one O(3), one O(7), and one O(9) atom. In the second Sn site, Sn(2) is bonded in a 3-coordinate geometry to one O(10), one O(12), and one O(4) atom. There are four inequivalent P sites. In the first P site, P(1) is bonded to one O(12), one O(13), one O(5), and one O(9) atom to form PO4 tetrahedra that share  a cornercorner with one Li(1)O4 tetrahedra,  a cornercorner with one Li(2)O4 tetrahedra, and  a cornercorner with one P(4)O4 tetrahedra. In the second P site, P(2) is bonded to one O(10), one O(14), one O(6), and one O(8) atom to form PO4 tetrahedra that share  a cornercorner with one Li(1)O4 tetrahedra,  a cornercorner with one Li(2)O4 tetrahedra, and  a cornercorner with one P(3)O4 tetrahedra. In the third P site, P(3) is bonded to one O(14), one O(2), one O(3), and one O(4) atom to form PO4 tetrahedra that share  a cornercorner with one Li(1)O4 tetrahedra,  a cornercorner with one Li(2)O4 tetrahedra, and  a cornercorner with one P(2)O4 tetrahedra. In the fourth P site, P(4) is bonded to one O(1), one O(11), one O(5), and one O(7) atom to form PO4 tetrahedra that share  a cornercorner with one Li(1)O4 tetrahedra,  a cornercorner with one Li(2)O4 tetrahedra, and  a cornercorner with one P(1)O4 tetrahedra. There are fourteen inequivalent O sites. In the first O site, O(1) is bonded in a 2-coordinate geometry to one Li(2) and one P(4) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one Li(2) and one P(3) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Li(1), one Sn(1), and one P(3) atom. In the fourth O site, O(4) is bonded in a distorted bent 150 degrees geometry to one Sn(2) and one P(3) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one P(1) and one P(4) atom. In the sixth O site, O(6) is bonded in a distorted bent 120 degrees geometry to one Li(2) and one P(2) atom. In the seventh O site, O(7) is bonded in a distorted trigonal non-coplanar geometry to one Li(1), one Sn(1), and one P(4) atom. In the eighth O site, O(8) is bonded in a water-like geometry to one Li(1) and one P(2) atom. In the ninth O site, O(9) is bonded in a distorted bent 150 degrees geometry to one Sn(1) and one P(1) atom. In the tenth O site, O(10) is bonded in a distorted bent 150 degrees geometry to one Sn(2) and one P(2) atom. In the eleventh O site, O(11) is bonded in a single-bond geometry to one P(4) atom. In the twelfth O site, O(12) is bonded in a distorted bent 120 degrees geometry to one Sn(2) and one P(1) atom. In the thirteenth O site, O(13) is bonded in a distorted trigonal planar geometry to one Li(1), one Li(2), and one P(1) atom. In the fourteenth O site, O(14) is bonded in a bent 120 degrees geometry to one P(2) and one P(3) atom. is represented by the CIF card [CIF]
data_LiSnP2O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.371
_cell_length_b   7.371
_cell_length_c   12.494
_cell_angle_alpha   89.786
_cell_angle_beta   89.786
_cell_angle_gamma   122.246
_symmetry_Int_Tables_number   1
_cell_volume   574.156
_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  0.258  0.717  0.011  1.0
  Li  Li1  1  0.292  0.720  0.746  1.0
  Li  Li2  1  0.720  0.292  0.246  1.0
  Li  Li3  1  0.717  0.258  0.511  1.0
  Sn  Sn4  1  0.343  0.342  0.622  1.0
  Sn  Sn5  1  0.342  0.343  0.122  1.0
  Sn  Sn6  1  0.645  0.626  0.877  1.0
  Sn  Sn7  1  0.626  0.645  0.377  1.0
  P  P8  1  0.100  0.342  0.354  1.0
  P  P9  1  0.922  0.733  0.112  1.0
  P  P10  1  0.903  0.660  0.647  1.0
  P  P11  1  0.660  0.903  0.147  1.0
  P  P12  1  0.268  0.071  0.388  1.0
  P  P13  1  0.071  0.268  0.888  1.0
  P  P14  1  0.733  0.922  0.612  1.0
  P  P15  1  0.342  0.100  0.854  1.0
  O  O16  1  0.246  0.444  0.809  1.0
  O  O17  1  0.107  0.671  0.624  1.0
  O  O18  1  0.507  0.707  0.074  1.0
  O  O19  1  0.840  0.605  0.767  1.0
  O  O20  1  0.110  0.068  0.880  1.0
  O  O21  1  0.563  0.756  0.693  1.0
  O  O22  1  0.368  0.142  0.501  1.0
  O  O23  1  0.154  0.813  0.126  1.0
  O  O24  1  0.756  0.563  0.193  1.0
  O  O25  1  0.068  0.110  0.380  1.0
  O  O26  1  0.392  0.155  0.734  1.0
  O  O27  1  0.671  0.107  0.124  1.0
  O  O28  1  0.707  0.507  0.574  1.0
  O  O29  1  0.605  0.840  0.267  1.0
  O  O30  1  0.856  0.654  0.995  1.0
  O  O31  1  0.142  0.368  0.001  1.0
  O  O32  1  0.840  0.171  0.864  1.0
  O  O33  1  0.155  0.392  0.234  1.0
  O  O34  1  0.813  0.154  0.626  1.0
  O  O35  1  0.498  0.299  0.924  1.0
  O  O36  1  0.325  0.893  0.881  1.0
  O  O37  1  0.654  0.856  0.495  1.0
  O  O38  1  0.299  0.498  0.424  1.0
  O  O39  1  0.939  0.896  0.626  1.0
  O  O40  1  0.896  0.939  0.126  1.0
  O  O41  1  0.893  0.325  0.381  1.0
  O  O42  1  0.171  0.840  0.364  1.0
  O  O43  1  0.444  0.246  0.309  1.0
[/CIF]
.