The structure described by Li10Si(PO6)2 is Hausmannite-derived structured and crystallizes in the tetragonal P4_2mc space group. There are four inequivalent Li sites. In the first Li site, Li(1) is bonded in a 4-coordinate geometry to one O(1), one O(4), one O(5), and one O(6) atom. In the second Li site, Li(2) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(5) atoms to form LiO6 octahedra that share corners with two equivalent P(2)O4 tetrahedra and edges with two equivalent P(1)O4 tetrahedra. In the third Li site, Li(3) is bonded to two equivalent O(2), two equivalent O(4), and two equivalent O(6) atoms to form LiO6 octahedra that share corners with two equivalent P(2)O4 tetrahedra and edges with two equivalent Si(1)O4 tetrahedra. In the fourth Li site, Li(4) is bonded in a 4-coordinate geometry to one O(2), one O(3), one O(4), and one O(6) atom. Si(1) is bonded to two equivalent O(4) and two equivalent O(6) atoms to form SiO4 tetrahedra that share edges with two equivalent Li(3)O6 octahedra. There are two inequivalent P sites. In the first P site, P(1) is bonded to two equivalent O(3) and two equivalent O(5) atoms to form PO4 tetrahedra that share edges with two equivalent Li(2)O6 octahedra. In the second P site, P(2) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form PO4 tetrahedra that share corners with two equivalent Li(2)O6 octahedra and corners with two equivalent Li(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 35-39°. There are six inequivalent O sites. In the first O site, O(3) is bonded to one Li(2), two equivalent Li(4), and one P(1) atom to form a mixture of corner and edge-sharing OLi3P trigonal pyramids. In the second O site, O(4) is bonded in a 6-coordinate geometry to one Li(3), two equivalent Li(1), two equivalent Li(4), and one Si(1) atom. In the third O site, O(5) is bonded to one Li(2), two equivalent Li(1), and one P(1) atom to form a mixture of corner and edge-sharing OLi3P trigonal pyramids. In the fourth O site, O(6) is bonded in a 6-coordinate geometry to one Li(3), two equivalent Li(1), two equivalent Li(4), and one Si(1) atom. In the fifth O site, O(1) is bonded in a 4-coordinate geometry to one Li(2), two equivalent Li(1), and one P(2) atom. In the sixth O site, O(2) is bonded in a 4-coordinate geometry to one Li(3), two equivalent Li(4), and one P(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Li10Si(PO6)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.039
_cell_length_b   7.039
_cell_length_c   10.381
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   514.436
_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  0.229  0.265  0.298  1.0
  Li  Li1  1  0.771  0.735  0.298  1.0
  Li  Li2  1  0.265  0.771  0.798  1.0
  Li  Li3  1  0.735  0.229  0.798  1.0
  Li  Li4  1  0.229  0.735  0.298  1.0
  Li  Li5  1  0.771  0.265  0.298  1.0
  Li  Li6  1  0.265  0.229  0.798  1.0
  Li  Li7  1  0.735  0.771  0.798  1.0
  Li  Li8  1  0.000  0.000  0.930  1.0
  Li  Li9  1  0.000  0.000  0.430  1.0
  Li  Li10  1  0.500  0.500  0.563  1.0
  Li  Li11  1  0.500  0.500  0.063  1.0
  Li  Li12  1  0.241  0.700  0.044  1.0
  Li  Li13  1  0.759  0.300  0.044  1.0
  Li  Li14  1  0.300  0.241  0.544  1.0
  Li  Li15  1  0.700  0.759  0.544  1.0
  Li  Li16  1  0.300  0.759  0.544  1.0
  Li  Li17  1  0.700  0.241  0.544  1.0
  Li  Li18  1  0.241  0.300  0.044  1.0
  Li  Li19  1  0.759  0.700  0.044  1.0
  Si  Si20  1  0.500  0.500  0.809  1.0
  Si  Si21  1  0.500  0.500  0.309  1.0
  P  P22  1  0.000  0.000  0.680  1.0
  P  P23  1  0.000  0.000  0.180  1.0
  P  P24  1  0.000  0.500  0.494  1.0
  P  P25  1  0.500  0.000  0.994  1.0
  O  O26  1  0.000  0.686  0.410  1.0
  O  O27  1  0.000  0.314  0.410  1.0
  O  O28  1  0.314  0.000  0.910  1.0
  O  O29  1  0.686  0.000  0.910  1.0
  O  O30  1  0.500  0.187  0.073  1.0
  O  O31  1  0.500  0.813  0.073  1.0
  O  O32  1  0.187  0.500  0.573  1.0
  O  O33  1  0.813  0.500  0.573  1.0
  O  O34  1  0.000  0.820  0.092  1.0
  O  O35  1  0.000  0.180  0.092  1.0
  O  O36  1  0.180  0.000  0.592  1.0
  O  O37  1  0.820  0.000  0.592  1.0
  O  O38  1  0.500  0.311  0.406  1.0
  O  O39  1  0.500  0.689  0.406  1.0
  O  O40  1  0.311  0.500  0.906  1.0
  O  O41  1  0.689  0.500  0.906  1.0
  O  O42  1  0.000  0.177  0.768  1.0
  O  O43  1  0.000  0.823  0.768  1.0
  O  O44  1  0.823  0.000  0.268  1.0
  O  O45  1  0.177  0.000  0.268  1.0
  O  O46  1  0.500  0.689  0.713  1.0
  O  O47  1  0.500  0.311  0.713  1.0
  O  O48  1  0.689  0.500  0.213  1.0
  O  O49  1  0.311  0.500  0.213  1.0
[/CIF]
.
The structure described by Li10Si(PO6)2 is Hausmannite-derived structured and crystallizes in the tetragonal P4_2mc space group. There are four inequivalent Li sites. In the first Li site, Li(1) is bonded in a 4-coordinate geometry to one O(1), one O(4), one O(5), and one O(6) atom. In the second Li site, Li(2) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(5) atoms to form LiO6 octahedra that share corners with two equivalent P(2)O4 tetrahedra and edges with two equivalent P(1)O4 tetrahedra. In the third Li site, Li(3) is bonded to two equivalent O(2), two equivalent O(4), and two equivalent O(6) atoms to form LiO6 octahedra that share corners with two equivalent P(2)O4 tetrahedra and edges with two equivalent Si(1)O4 tetrahedra. In the fourth Li site, Li(4) is bonded in a 4-coordinate geometry to one O(2), one O(3), one O(4), and one O(6) atom. Si(1) is bonded to two equivalent O(4) and two equivalent O(6) atoms to form SiO4 tetrahedra that share edges with two equivalent Li(3)O6 octahedra. There are two inequivalent P sites. In the first P site, P(1) is bonded to two equivalent O(3) and two equivalent O(5) atoms to form PO4 tetrahedra that share edges with two equivalent Li(2)O6 octahedra. In the second P site, P(2) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form PO4 tetrahedra that share corners with two equivalent Li(2)O6 octahedra and corners with two equivalent Li(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 35-39°. There are six inequivalent O sites. In the first O site, O(3) is bonded to one Li(2), two equivalent Li(4), and one P(1) atom to form a mixture of corner and edge-sharing OLi3P trigonal pyramids. In the second O site, O(4) is bonded in a 6-coordinate geometry to one Li(3), two equivalent Li(1), two equivalent Li(4), and one Si(1) atom. In the third O site, O(5) is bonded to one Li(2), two equivalent Li(1), and one P(1) atom to form a mixture of corner and edge-sharing OLi3P trigonal pyramids. In the fourth O site, O(6) is bonded in a 6-coordinate geometry to one Li(3), two equivalent Li(1), two equivalent Li(4), and one Si(1) atom. In the fifth O site, O(1) is bonded in a 4-coordinate geometry to one Li(2), two equivalent Li(1), and one P(2) atom. In the sixth O site, O(2) is bonded in a 4-coordinate geometry to one Li(3), two equivalent Li(4), and one P(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Li10Si(PO6)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.039
_cell_length_b   7.039
_cell_length_c   10.381
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   514.436
_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  0.229  0.265  0.298  1.0
  Li  Li1  1  0.771  0.735  0.298  1.0
  Li  Li2  1  0.265  0.771  0.798  1.0
  Li  Li3  1  0.735  0.229  0.798  1.0
  Li  Li4  1  0.229  0.735  0.298  1.0
  Li  Li5  1  0.771  0.265  0.298  1.0
  Li  Li6  1  0.265  0.229  0.798  1.0
  Li  Li7  1  0.735  0.771  0.798  1.0
  Li  Li8  1  0.000  0.000  0.930  1.0
  Li  Li9  1  0.000  0.000  0.430  1.0
  Li  Li10  1  0.500  0.500  0.563  1.0
  Li  Li11  1  0.500  0.500  0.063  1.0
  Li  Li12  1  0.241  0.700  0.044  1.0
  Li  Li13  1  0.759  0.300  0.044  1.0
  Li  Li14  1  0.300  0.241  0.544  1.0
  Li  Li15  1  0.700  0.759  0.544  1.0
  Li  Li16  1  0.300  0.759  0.544  1.0
  Li  Li17  1  0.700  0.241  0.544  1.0
  Li  Li18  1  0.241  0.300  0.044  1.0
  Li  Li19  1  0.759  0.700  0.044  1.0
  Si  Si20  1  0.500  0.500  0.809  1.0
  Si  Si21  1  0.500  0.500  0.309  1.0
  P  P22  1  0.000  0.000  0.680  1.0
  P  P23  1  0.000  0.000  0.180  1.0
  P  P24  1  0.000  0.500  0.494  1.0
  P  P25  1  0.500  0.000  0.994  1.0
  O  O26  1  0.000  0.686  0.410  1.0
  O  O27  1  0.000  0.314  0.410  1.0
  O  O28  1  0.314  0.000  0.910  1.0
  O  O29  1  0.686  0.000  0.910  1.0
  O  O30  1  0.500  0.187  0.073  1.0
  O  O31  1  0.500  0.813  0.073  1.0
  O  O32  1  0.187  0.500  0.573  1.0
  O  O33  1  0.813  0.500  0.573  1.0
  O  O34  1  0.000  0.820  0.092  1.0
  O  O35  1  0.000  0.180  0.092  1.0
  O  O36  1  0.180  0.000  0.592  1.0
  O  O37  1  0.820  0.000  0.592  1.0
  O  O38  1  0.500  0.311  0.406  1.0
  O  O39  1  0.500  0.689  0.406  1.0
  O  O40  1  0.311  0.500  0.906  1.0
  O  O41  1  0.689  0.500  0.906  1.0
  O  O42  1  0.000  0.177  0.768  1.0
  O  O43  1  0.000  0.823  0.768  1.0
  O  O44  1  0.823  0.000  0.268  1.0
  O  O45  1  0.177  0.000  0.268  1.0
  O  O46  1  0.500  0.689  0.713  1.0
  O  O47  1  0.500  0.311  0.713  1.0
  O  O48  1  0.689  0.500  0.213  1.0
  O  O49  1  0.311  0.500  0.213  1.0
[/CIF]
.