The compound described by LiSbP2O7 crystallizes in the monoclinic P2_1/c space group. Li(1) is bonded to one O(1), one O(3), one O(6), and two equivalent O(4) atoms to form distorted LiO5 trigonal bipyramids that share corners with three equivalent Sb(1)O6 octahedra, corners with two equivalent P(2)O4 tetrahedra, corners with three equivalent P(1)O4 tetrahedra, corners with two equivalent Li(1)O5 trigonal bipyramids, and  an edgeedge with one Sb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 53-68°. Sb(1) is bonded to one O(1), one O(3), one O(4), one O(5), one O(6), and one O(7) atom to form distorted SbO6 octahedra that share corners with three equivalent P(1)O4 tetrahedra, corners with three equivalent P(2)O4 tetrahedra, corners with three equivalent Li(1)O5 trigonal bipyramids, and  an edgeedge with one Li(1)O5 trigonal bipyramid. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(2), one O(3), one O(4), and one O(5) atom to form PO4 tetrahedra that share corners with three equivalent Sb(1)O6 octahedra,  a cornercorner with one P(2)O4 tetrahedra, and corners with three equivalent Li(1)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 20-58°. In the second P site, P(2) is bonded to one O(1), one O(2), one O(6), and one O(7) atom to form PO4 tetrahedra that share corners with three equivalent Sb(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 44-68°. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Li(1), one Sb(1), and one P(2) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one P(1) and one P(2) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Li(1), one Sb(1), and one P(1) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to two equivalent Li(1), one Sb(1), and one P(1) atom. In the fifth O site, O(5) is bonded in a distorted bent 150 degrees geometry to one Sb(1) and one P(1) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one Li(1), one Sb(1), and one P(2) atom. In the seventh O site, O(7) is bonded in a 2-coordinate geometry to one Sb(1) and one P(2) atom. is represented by the CIF file [CIF]
data_LiSbP2O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.139
_cell_length_b   9.029
_cell_length_c   14.249
_cell_angle_alpha   64.166
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   595.060
_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  0.726  0.577  0.294  1.0
  Li  Li1  1  0.274  0.423  0.706  1.0
  Li  Li2  1  0.226  0.423  0.206  1.0
  Li  Li3  1  0.774  0.577  0.794  1.0
  Sb  Sb4  1  0.777  0.733  0.029  1.0
  Sb  Sb5  1  0.277  0.267  0.471  1.0
  Sb  Sb6  1  0.223  0.267  0.971  1.0
  Sb  Sb7  1  0.723  0.733  0.529  1.0
  P  P8  1  0.753  0.197  0.341  1.0
  P  P9  1  0.784  0.322  0.617  1.0
  P  P10  1  0.284  0.678  0.883  1.0
  P  P11  1  0.253  0.803  0.159  1.0
  P  P12  1  0.216  0.678  0.383  1.0
  P  P13  1  0.747  0.197  0.841  1.0
  P  P14  1  0.247  0.803  0.659  1.0
  P  P15  1  0.716  0.322  0.117  1.0
  O  O16  1  0.422  0.350  0.107  1.0
  O  O17  1  0.224  0.822  0.767  1.0
  O  O18  1  0.276  0.822  0.267  1.0
  O  O19  1  0.981  0.720  0.165  1.0
  O  O20  1  0.964  0.324  0.335  1.0
  O  O21  1  0.727  0.030  0.929  1.0
  O  O22  1  0.536  0.324  0.835  1.0
  O  O23  1  0.864  0.473  0.116  1.0
  O  O24  1  0.170  0.738  0.959  1.0
  O  O25  1  0.036  0.676  0.665  1.0
  O  O26  1  0.019  0.280  0.835  1.0
  O  O27  1  0.364  0.527  0.384  1.0
  O  O28  1  0.227  0.970  0.571  1.0
  O  O29  1  0.330  0.738  0.459  1.0
  O  O30  1  0.481  0.280  0.335  1.0
  O  O31  1  0.636  0.473  0.616  1.0
  O  O32  1  0.922  0.650  0.393  1.0
  O  O33  1  0.773  0.030  0.429  1.0
  O  O34  1  0.830  0.262  0.041  1.0
  O  O35  1  0.519  0.720  0.665  1.0
  O  O36  1  0.464  0.676  0.165  1.0
  O  O37  1  0.670  0.262  0.541  1.0
  O  O38  1  0.273  0.970  0.071  1.0
  O  O39  1  0.578  0.650  0.893  1.0
  O  O40  1  0.776  0.178  0.233  1.0
  O  O41  1  0.724  0.178  0.733  1.0
  O  O42  1  0.078  0.350  0.607  1.0
  O  O43  1  0.136  0.527  0.884  1.0
[/CIF]
.
The compound described by LiSbP2O7 crystallizes in the monoclinic P2_1/c space group. Li(1) is bonded to one O(1), one O(3), one O(6), and two equivalent O(4) atoms to form distorted LiO5 trigonal bipyramids that share corners with three equivalent Sb(1)O6 octahedra, corners with two equivalent P(2)O4 tetrahedra, corners with three equivalent P(1)O4 tetrahedra, corners with two equivalent Li(1)O5 trigonal bipyramids, and  an edgeedge with one Sb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 53-68°. Sb(1) is bonded to one O(1), one O(3), one O(4), one O(5), one O(6), and one O(7) atom to form distorted SbO6 octahedra that share corners with three equivalent P(1)O4 tetrahedra, corners with three equivalent P(2)O4 tetrahedra, corners with three equivalent Li(1)O5 trigonal bipyramids, and  an edgeedge with one Li(1)O5 trigonal bipyramid. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(2), one O(3), one O(4), and one O(5) atom to form PO4 tetrahedra that share corners with three equivalent Sb(1)O6 octahedra,  a cornercorner with one P(2)O4 tetrahedra, and corners with three equivalent Li(1)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 20-58°. In the second P site, P(2) is bonded to one O(1), one O(2), one O(6), and one O(7) atom to form PO4 tetrahedra that share corners with three equivalent Sb(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 44-68°. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Li(1), one Sb(1), and one P(2) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one P(1) and one P(2) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Li(1), one Sb(1), and one P(1) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to two equivalent Li(1), one Sb(1), and one P(1) atom. In the fifth O site, O(5) is bonded in a distorted bent 150 degrees geometry to one Sb(1) and one P(1) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one Li(1), one Sb(1), and one P(2) atom. In the seventh O site, O(7) is bonded in a 2-coordinate geometry to one Sb(1) and one P(2) atom. is represented by the CIF file [CIF]
data_LiSbP2O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.139
_cell_length_b   9.029
_cell_length_c   14.249
_cell_angle_alpha   64.166
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   595.060
_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  0.726  0.577  0.294  1.0
  Li  Li1  1  0.274  0.423  0.706  1.0
  Li  Li2  1  0.226  0.423  0.206  1.0
  Li  Li3  1  0.774  0.577  0.794  1.0
  Sb  Sb4  1  0.777  0.733  0.029  1.0
  Sb  Sb5  1  0.277  0.267  0.471  1.0
  Sb  Sb6  1  0.223  0.267  0.971  1.0
  Sb  Sb7  1  0.723  0.733  0.529  1.0
  P  P8  1  0.753  0.197  0.341  1.0
  P  P9  1  0.784  0.322  0.617  1.0
  P  P10  1  0.284  0.678  0.883  1.0
  P  P11  1  0.253  0.803  0.159  1.0
  P  P12  1  0.216  0.678  0.383  1.0
  P  P13  1  0.747  0.197  0.841  1.0
  P  P14  1  0.247  0.803  0.659  1.0
  P  P15  1  0.716  0.322  0.117  1.0
  O  O16  1  0.422  0.350  0.107  1.0
  O  O17  1  0.224  0.822  0.767  1.0
  O  O18  1  0.276  0.822  0.267  1.0
  O  O19  1  0.981  0.720  0.165  1.0
  O  O20  1  0.964  0.324  0.335  1.0
  O  O21  1  0.727  0.030  0.929  1.0
  O  O22  1  0.536  0.324  0.835  1.0
  O  O23  1  0.864  0.473  0.116  1.0
  O  O24  1  0.170  0.738  0.959  1.0
  O  O25  1  0.036  0.676  0.665  1.0
  O  O26  1  0.019  0.280  0.835  1.0
  O  O27  1  0.364  0.527  0.384  1.0
  O  O28  1  0.227  0.970  0.571  1.0
  O  O29  1  0.330  0.738  0.459  1.0
  O  O30  1  0.481  0.280  0.335  1.0
  O  O31  1  0.636  0.473  0.616  1.0
  O  O32  1  0.922  0.650  0.393  1.0
  O  O33  1  0.773  0.030  0.429  1.0
  O  O34  1  0.830  0.262  0.041  1.0
  O  O35  1  0.519  0.720  0.665  1.0
  O  O36  1  0.464  0.676  0.165  1.0
  O  O37  1  0.670  0.262  0.541  1.0
  O  O38  1  0.273  0.970  0.071  1.0
  O  O39  1  0.578  0.650  0.893  1.0
  O  O40  1  0.776  0.178  0.233  1.0
  O  O41  1  0.724  0.178  0.733  1.0
  O  O42  1  0.078  0.350  0.607  1.0
  O  O43  1  0.136  0.527  0.884  1.0
[/CIF]
.