The structure described by LiWP2O8 crystallizes in the monoclinic P2_1/c space group. Li(1) is bonded in a distorted T-shaped geometry to one O(1), one O(4), one O(6), and two equivalent O(5) atoms. W(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(6), and one O(7) atom to form distorted WO6 octahedra that share corners with two equivalent P(2)O4 tetrahedra and corners with three equivalent P(1)O4 tetrahedra. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(2), one O(3), one O(7), and one O(8) atom to form PO4 tetrahedra that share corners with three equivalent W(1)O6 octahedra and  a cornercorner with one P(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 38-47°. In the second P site, P(2) is bonded to one O(1), one O(5), one O(6), and one O(8) atom to form PO4 tetrahedra that share corners with two equivalent W(1)O6 octahedra and  a cornercorner with one P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 22-45°. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Li(1), one W(1), and one P(2) atom. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to one W(1) and one P(1) atom. In the third O site, O(3) is bonded in a distorted bent 150 degrees geometry to one W(1) and one P(1) atom. In the fourth O site, O(4) is bonded in a linear geometry to one Li(1) and one W(1) atom. In the fifth O site, O(5) is bonded in a distorted T-shaped geometry to two equivalent Li(1) and one P(2) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Li(1), one W(1), and one P(2) atom. In the seventh O site, O(7) is bonded in a distorted bent 150 degrees geometry to one W(1) and one P(1) atom. In the eighth O site, O(8) is bonded in a bent 120 degrees geometry to one P(1) and one P(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_LiP2WO8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.066
_cell_length_b   4.984
_cell_length_c   16.178
_cell_angle_alpha   84.271
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   647.166
_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  0.837  0.626  0.473  1.0
  Li  Li1  1  0.337  0.374  0.027  1.0
  Li  Li2  1  0.663  0.626  0.973  1.0
  Li  Li3  1  0.163  0.374  0.527  1.0
  P  P4  1  0.629  0.876  0.245  1.0
  P  P5  1  0.194  0.846  0.419  1.0
  P  P6  1  0.694  0.154  0.081  1.0
  P  P7  1  0.129  0.124  0.255  1.0
  P  P8  1  0.871  0.876  0.745  1.0
  P  P9  1  0.306  0.846  0.919  1.0
  P  P10  1  0.806  0.154  0.581  1.0
  P  P11  1  0.371  0.124  0.755  1.0
  W  W12  1  0.038  0.354  0.857  1.0
  W  W13  1  0.538  0.646  0.643  1.0
  W  W14  1  0.462  0.354  0.357  1.0
  W  W15  1  0.962  0.646  0.143  1.0
  O  O16  1  0.724  0.404  0.612  1.0
  O  O17  1  0.492  0.361  0.741  1.0
  O  O18  1  0.808  0.782  0.236  1.0
  O  O19  1  0.382  0.535  0.578  1.0
  O  O20  1  0.882  0.465  0.922  1.0
  O  O21  1  0.080  0.758  0.489  1.0
  O  O22  1  0.824  0.934  0.066  1.0
  O  O23  1  0.118  0.930  0.188  1.0
  O  O24  1  0.992  0.639  0.759  1.0
  O  O25  1  0.224  0.596  0.888  1.0
  O  O26  1  0.576  0.027  0.157  1.0
  O  O27  1  0.076  0.973  0.343  1.0
  O  O28  1  0.618  0.070  0.312  1.0
  O  O29  1  0.692  0.782  0.736  1.0
  O  O30  1  0.324  0.066  0.434  1.0
  O  O31  1  0.580  0.242  0.011  1.0
  O  O32  1  0.420  0.758  0.989  1.0
  O  O33  1  0.676  0.934  0.566  1.0
  O  O34  1  0.308  0.218  0.264  1.0
  O  O35  1  0.382  0.930  0.688  1.0
  O  O36  1  0.924  0.027  0.657  1.0
  O  O37  1  0.424  0.973  0.843  1.0
  O  O38  1  0.776  0.404  0.112  1.0
  O  O39  1  0.008  0.361  0.241  1.0
  O  O40  1  0.882  0.070  0.812  1.0
  O  O41  1  0.176  0.066  0.934  1.0
  O  O42  1  0.920  0.242  0.511  1.0
  O  O43  1  0.118  0.535  0.078  1.0
  O  O44  1  0.618  0.465  0.422  1.0
  O  O45  1  0.192  0.218  0.764  1.0
  O  O46  1  0.508  0.639  0.259  1.0
  O  O47  1  0.276  0.596  0.388  1.0
[/CIF]
.
The structure described by LiWP2O8 crystallizes in the monoclinic P2_1/c space group. Li(1) is bonded in a distorted T-shaped geometry to one O(1), one O(4), one O(6), and two equivalent O(5) atoms. W(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(6), and one O(7) atom to form distorted WO6 octahedra that share corners with two equivalent P(2)O4 tetrahedra and corners with three equivalent P(1)O4 tetrahedra. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(2), one O(3), one O(7), and one O(8) atom to form PO4 tetrahedra that share corners with three equivalent W(1)O6 octahedra and  a cornercorner with one P(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 38-47°. In the second P site, P(2) is bonded to one O(1), one O(5), one O(6), and one O(8) atom to form PO4 tetrahedra that share corners with two equivalent W(1)O6 octahedra and  a cornercorner with one P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 22-45°. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Li(1), one W(1), and one P(2) atom. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to one W(1) and one P(1) atom. In the third O site, O(3) is bonded in a distorted bent 150 degrees geometry to one W(1) and one P(1) atom. In the fourth O site, O(4) is bonded in a linear geometry to one Li(1) and one W(1) atom. In the fifth O site, O(5) is bonded in a distorted T-shaped geometry to two equivalent Li(1) and one P(2) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Li(1), one W(1), and one P(2) atom. In the seventh O site, O(7) is bonded in a distorted bent 150 degrees geometry to one W(1) and one P(1) atom. In the eighth O site, O(8) is bonded in a bent 120 degrees geometry to one P(1) and one P(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_LiP2WO8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.066
_cell_length_b   4.984
_cell_length_c   16.178
_cell_angle_alpha   84.271
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   647.166
_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  0.837  0.626  0.473  1.0
  Li  Li1  1  0.337  0.374  0.027  1.0
  Li  Li2  1  0.663  0.626  0.973  1.0
  Li  Li3  1  0.163  0.374  0.527  1.0
  P  P4  1  0.629  0.876  0.245  1.0
  P  P5  1  0.194  0.846  0.419  1.0
  P  P6  1  0.694  0.154  0.081  1.0
  P  P7  1  0.129  0.124  0.255  1.0
  P  P8  1  0.871  0.876  0.745  1.0
  P  P9  1  0.306  0.846  0.919  1.0
  P  P10  1  0.806  0.154  0.581  1.0
  P  P11  1  0.371  0.124  0.755  1.0
  W  W12  1  0.038  0.354  0.857  1.0
  W  W13  1  0.538  0.646  0.643  1.0
  W  W14  1  0.462  0.354  0.357  1.0
  W  W15  1  0.962  0.646  0.143  1.0
  O  O16  1  0.724  0.404  0.612  1.0
  O  O17  1  0.492  0.361  0.741  1.0
  O  O18  1  0.808  0.782  0.236  1.0
  O  O19  1  0.382  0.535  0.578  1.0
  O  O20  1  0.882  0.465  0.922  1.0
  O  O21  1  0.080  0.758  0.489  1.0
  O  O22  1  0.824  0.934  0.066  1.0
  O  O23  1  0.118  0.930  0.188  1.0
  O  O24  1  0.992  0.639  0.759  1.0
  O  O25  1  0.224  0.596  0.888  1.0
  O  O26  1  0.576  0.027  0.157  1.0
  O  O27  1  0.076  0.973  0.343  1.0
  O  O28  1  0.618  0.070  0.312  1.0
  O  O29  1  0.692  0.782  0.736  1.0
  O  O30  1  0.324  0.066  0.434  1.0
  O  O31  1  0.580  0.242  0.011  1.0
  O  O32  1  0.420  0.758  0.989  1.0
  O  O33  1  0.676  0.934  0.566  1.0
  O  O34  1  0.308  0.218  0.264  1.0
  O  O35  1  0.382  0.930  0.688  1.0
  O  O36  1  0.924  0.027  0.657  1.0
  O  O37  1  0.424  0.973  0.843  1.0
  O  O38  1  0.776  0.404  0.112  1.0
  O  O39  1  0.008  0.361  0.241  1.0
  O  O40  1  0.882  0.070  0.812  1.0
  O  O41  1  0.176  0.066  0.934  1.0
  O  O42  1  0.920  0.242  0.511  1.0
  O  O43  1  0.118  0.535  0.078  1.0
  O  O44  1  0.618  0.465  0.422  1.0
  O  O45  1  0.192  0.218  0.764  1.0
  O  O46  1  0.508  0.639  0.259  1.0
  O  O47  1  0.276  0.596  0.388  1.0
[/CIF]
.