The material described by Li10Mn(SiO5)2 is Aluminum carbonitride-derived structured and crystallizes in the monoclinic C2/m space group. There are seven inequivalent Li sites. In the first Li site, Li(1) is bonded to two equivalent O(1) and two equivalent O(8) atoms to form distorted LiO4 tetrahedra that share corners with two equivalent Si(1)O4 tetrahedra and edges with two equivalent Li(1)O4 tetrahedra. In the second Li site, Li(2) is bonded in a 4-coordinate geometry to one O(1), one O(2), one O(3), one O(4), and one O(8) atom. In the third Li site, Li(3) is bonded in a 4-coordinate geometry to one O(2), one O(6), and two equivalent O(4) atoms. In the fourth Li site, Li(4) is bonded to one O(2), one O(3), one O(4), and one O(5) atom to form distorted LiO4 tetrahedra that share corners with two equivalent Li(5)O5 square pyramids,  a cornercorner with one Li(7)O4 tetrahedra,  a cornercorner with one Si(2)O4 tetrahedra, corners with two equivalent Li(4)O4 tetrahedra,  an edgeedge with one Li(6)O4 tetrahedra, and  an edgeedge with one Si(1)O4 tetrahedra. In the fifth Li site, Li(5) is bonded to one O(7), two equivalent O(4), and two equivalent O(5) atoms to form distorted LiO5 square pyramids that share  a cornercorner with one Li(7)O4 tetrahedra, corners with two equivalent Li(6)O4 tetrahedra, corners with three equivalent Si(2)O4 tetrahedra, corners with four equivalent Li(4)O4 tetrahedra,  an edgeedge with one Li(7)O4 tetrahedra,  an edgeedge with one Si(1)O4 tetrahedra, and edges with two equivalent Li(6)O4 tetrahedra. In the sixth Li site, Li(6) is bonded to one O(4), one O(5), one O(6), and one O(7) atom to form LiO4 tetrahedra that share  a cornercorner with one Li(5)O5 square pyramid,  a cornercorner with one Li(7)O4 tetrahedra,  a cornercorner with one Si(1)O4 tetrahedra, corners with two equivalent Li(6)O4 tetrahedra, corners with three equivalent Si(2)O4 tetrahedra,  an edgeedge with one Li(5)O5 square pyramid,  an edgeedge with one Li(4)O4 tetrahedra, and  an edgeedge with one Li(7)O4 tetrahedra. In the seventh Li site, Li(7) is bonded to one O(6), one O(7), and two equivalent O(5) atoms to form LiO4 tetrahedra that share  a cornercorner with one Li(5)O5 square pyramid, corners with two equivalent Li(4)O4 tetrahedra, corners with two equivalent Li(6)O4 tetrahedra, corners with four equivalent Si(2)O4 tetrahedra,  an edgeedge with one Li(5)O5 square pyramid, and edges with two equivalent Li(6)O4 tetrahedra. Mn(1) is bonded in a distorted trigonal non-coplanar geometry to one O(2) and two equivalent O(8) atoms. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded to one O(1), one O(3), and two equivalent O(4) atoms to form SiO4 tetrahedra that share corners with two equivalent Li(1)O4 tetrahedra, corners with two equivalent Li(6)O4 tetrahedra,  an edgeedge with one Li(5)O5 square pyramid, and edges with two equivalent Li(4)O4 tetrahedra. In the second Si site, Si(2) is bonded to one O(6), one O(7), and two equivalent O(5) atoms to form SiO4 tetrahedra that share corners with three equivalent Li(5)O5 square pyramids, corners with two equivalent Li(4)O4 tetrahedra, corners with four equivalent Li(7)O4 tetrahedra, and corners with six equivalent Li(6)O4 tetrahedra. There are eight inequivalent O sites. In the first O site, O(8) is bonded to two equivalent Li(1), two equivalent Li(2), and two equivalent Mn(1) atoms to form distorted OLi4Mn2 pentagonal pyramids that share corners with two equivalent O(1)Li4Si trigonal bipyramids, edges with two equivalent O(2)Li5Mn octahedra, edges with two equivalent O(8)Li4Mn2 pentagonal pyramids, and edges with two equivalent O(1)Li4Si trigonal bipyramids. In the second O site, O(1) is bonded to two equivalent Li(1), two equivalent Li(2), and one Si(1) atom to form distorted OLi4Si trigonal bipyramids that share corners with two equivalent O(2)Li5Mn octahedra, corners with two equivalent O(8)Li4Mn2 pentagonal pyramids, edges with two equivalent O(8)Li4Mn2 pentagonal pyramids, and  an edgeedge with one O(1)Li4Si trigonal bipyramid. The corner-sharing octahedral tilt angles are 30°. In the third O site, O(2) is bonded to one Li(3), two equivalent Li(2), two equivalent Li(4), and one Mn(1) atom to form OLi5Mn octahedra that share corners with two equivalent O(1)Li4Si trigonal bipyramids and edges with two equivalent O(8)Li4Mn2 pentagonal pyramids. In the fourth O site, O(3) is bonded in a distorted pentagonal planar geometry to two equivalent Li(2), two equivalent Li(4), and one Si(1) atom. In the fifth O site, O(4) is bonded in a 6-coordinate geometry to one Li(2), one Li(3), one Li(4), one Li(5), one Li(6), and one Si(1) atom. In the sixth O site, O(5) is bonded in a 5-coordinate geometry to one Li(4), one Li(5), one Li(6), one Li(7), and one Si(2) atom. In the seventh O site, O(6) is bonded in a 5-coordinate geometry to one Li(3), one Li(7), two equivalent Li(6), and one Si(2) atom. In the eighth O site, O(7) is bonded in a 5-coordinate geometry to one Li(5), one Li(7), two equivalent Li(6), and one Si(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Li10Mn(SiO5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   15.375
_cell_length_b   15.375
_cell_length_c   5.175
_cell_angle_alpha   80.373
_cell_angle_beta   80.373
_cell_angle_gamma   22.956
_symmetry_Int_Tables_number   1
_cell_volume   470.125
_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  0.491  0.491  0.756  1.0
  Li  Li1  1  0.225  0.644  0.400  1.0
  Li  Li2  1  0.644  0.225  0.400  1.0
  Li  Li3  1  0.867  0.867  0.282  1.0
  Li  Li4  1  0.084  0.652  0.734  1.0
  Li  Li5  1  0.652  0.084  0.734  1.0
  Li  Li6  1  0.325  0.325  0.429  1.0
  Li  Li7  1  0.047  0.562  0.100  1.0
  Li  Li8  1  0.562  0.047  0.100  1.0
  Li  Li9  1  0.269  0.269  0.823  1.0
  Li  Li10  1  0.731  0.731  0.177  1.0
  Li  Li11  1  0.438  0.953  0.900  1.0
  Li  Li12  1  0.953  0.438  0.900  1.0
  Li  Li13  1  0.675  0.675  0.571  1.0
  Li  Li14  1  0.348  0.916  0.266  1.0
  Li  Li15  1  0.916  0.348  0.266  1.0
  Li  Li16  1  0.133  0.133  0.718  1.0
  Li  Li17  1  0.775  0.356  0.600  1.0
  Li  Li18  1  0.356  0.775  0.600  1.0
  Li  Li19  1  0.509  0.509  0.244  1.0
  Mn  Mn20  1  0.962  0.962  0.704  1.0
  Mn  Mn21  1  0.038  0.038  0.296  1.0
  Si  Si22  1  0.400  0.400  0.006  1.0
  Si  Si23  1  0.780  0.780  0.628  1.0
  Si  Si24  1  0.220  0.220  0.372  1.0
  Si  Si25  1  0.600  0.600  0.994  1.0
  O  O26  1  0.450  0.450  0.099  1.0
  O  O27  1  0.907  0.907  0.547  1.0
  O  O28  1  0.404  0.404  0.681  1.0
  O  O29  1  0.153  0.588  0.120  1.0
  O  O30  1  0.588  0.153  0.120  1.0
  O  O31  1  0.031  0.581  0.715  1.0
  O  O32  1  0.581  0.031  0.715  1.0
  O  O33  1  0.786  0.786  0.307  1.0
  O  O34  1  0.272  0.272  0.219  1.0
  O  O35  1  0.728  0.728  0.781  1.0
  O  O36  1  0.214  0.214  0.693  1.0
  O  O37  1  0.969  0.419  0.285  1.0
  O  O38  1  0.419  0.969  0.285  1.0
  O  O39  1  0.412  0.847  0.880  1.0
  O  O40  1  0.847  0.412  0.880  1.0
  O  O41  1  0.596  0.596  0.319  1.0
  O  O42  1  0.093  0.093  0.453  1.0
  O  O43  1  0.550  0.550  0.901  1.0
  O  O44  1  0.246  0.754  0.500  1.0
  O  O45  1  0.754  0.246  0.500  1.0
[/CIF]
.
The material described by Li10Mn(SiO5)2 is Aluminum carbonitride-derived structured and crystallizes in the monoclinic C2/m space group. There are seven inequivalent Li sites. In the first Li site, Li(1) is bonded to two equivalent O(1) and two equivalent O(8) atoms to form distorted LiO4 tetrahedra that share corners with two equivalent Si(1)O4 tetrahedra and edges with two equivalent Li(1)O4 tetrahedra. In the second Li site, Li(2) is bonded in a 4-coordinate geometry to one O(1), one O(2), one O(3), one O(4), and one O(8) atom. In the third Li site, Li(3) is bonded in a 4-coordinate geometry to one O(2), one O(6), and two equivalent O(4) atoms. In the fourth Li site, Li(4) is bonded to one O(2), one O(3), one O(4), and one O(5) atom to form distorted LiO4 tetrahedra that share corners with two equivalent Li(5)O5 square pyramids,  a cornercorner with one Li(7)O4 tetrahedra,  a cornercorner with one Si(2)O4 tetrahedra, corners with two equivalent Li(4)O4 tetrahedra,  an edgeedge with one Li(6)O4 tetrahedra, and  an edgeedge with one Si(1)O4 tetrahedra. In the fifth Li site, Li(5) is bonded to one O(7), two equivalent O(4), and two equivalent O(5) atoms to form distorted LiO5 square pyramids that share  a cornercorner with one Li(7)O4 tetrahedra, corners with two equivalent Li(6)O4 tetrahedra, corners with three equivalent Si(2)O4 tetrahedra, corners with four equivalent Li(4)O4 tetrahedra,  an edgeedge with one Li(7)O4 tetrahedra,  an edgeedge with one Si(1)O4 tetrahedra, and edges with two equivalent Li(6)O4 tetrahedra. In the sixth Li site, Li(6) is bonded to one O(4), one O(5), one O(6), and one O(7) atom to form LiO4 tetrahedra that share  a cornercorner with one Li(5)O5 square pyramid,  a cornercorner with one Li(7)O4 tetrahedra,  a cornercorner with one Si(1)O4 tetrahedra, corners with two equivalent Li(6)O4 tetrahedra, corners with three equivalent Si(2)O4 tetrahedra,  an edgeedge with one Li(5)O5 square pyramid,  an edgeedge with one Li(4)O4 tetrahedra, and  an edgeedge with one Li(7)O4 tetrahedra. In the seventh Li site, Li(7) is bonded to one O(6), one O(7), and two equivalent O(5) atoms to form LiO4 tetrahedra that share  a cornercorner with one Li(5)O5 square pyramid, corners with two equivalent Li(4)O4 tetrahedra, corners with two equivalent Li(6)O4 tetrahedra, corners with four equivalent Si(2)O4 tetrahedra,  an edgeedge with one Li(5)O5 square pyramid, and edges with two equivalent Li(6)O4 tetrahedra. Mn(1) is bonded in a distorted trigonal non-coplanar geometry to one O(2) and two equivalent O(8) atoms. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded to one O(1), one O(3), and two equivalent O(4) atoms to form SiO4 tetrahedra that share corners with two equivalent Li(1)O4 tetrahedra, corners with two equivalent Li(6)O4 tetrahedra,  an edgeedge with one Li(5)O5 square pyramid, and edges with two equivalent Li(4)O4 tetrahedra. In the second Si site, Si(2) is bonded to one O(6), one O(7), and two equivalent O(5) atoms to form SiO4 tetrahedra that share corners with three equivalent Li(5)O5 square pyramids, corners with two equivalent Li(4)O4 tetrahedra, corners with four equivalent Li(7)O4 tetrahedra, and corners with six equivalent Li(6)O4 tetrahedra. There are eight inequivalent O sites. In the first O site, O(8) is bonded to two equivalent Li(1), two equivalent Li(2), and two equivalent Mn(1) atoms to form distorted OLi4Mn2 pentagonal pyramids that share corners with two equivalent O(1)Li4Si trigonal bipyramids, edges with two equivalent O(2)Li5Mn octahedra, edges with two equivalent O(8)Li4Mn2 pentagonal pyramids, and edges with two equivalent O(1)Li4Si trigonal bipyramids. In the second O site, O(1) is bonded to two equivalent Li(1), two equivalent Li(2), and one Si(1) atom to form distorted OLi4Si trigonal bipyramids that share corners with two equivalent O(2)Li5Mn octahedra, corners with two equivalent O(8)Li4Mn2 pentagonal pyramids, edges with two equivalent O(8)Li4Mn2 pentagonal pyramids, and  an edgeedge with one O(1)Li4Si trigonal bipyramid. The corner-sharing octahedral tilt angles are 30°. In the third O site, O(2) is bonded to one Li(3), two equivalent Li(2), two equivalent Li(4), and one Mn(1) atom to form OLi5Mn octahedra that share corners with two equivalent O(1)Li4Si trigonal bipyramids and edges with two equivalent O(8)Li4Mn2 pentagonal pyramids. In the fourth O site, O(3) is bonded in a distorted pentagonal planar geometry to two equivalent Li(2), two equivalent Li(4), and one Si(1) atom. In the fifth O site, O(4) is bonded in a 6-coordinate geometry to one Li(2), one Li(3), one Li(4), one Li(5), one Li(6), and one Si(1) atom. In the sixth O site, O(5) is bonded in a 5-coordinate geometry to one Li(4), one Li(5), one Li(6), one Li(7), and one Si(2) atom. In the seventh O site, O(6) is bonded in a 5-coordinate geometry to one Li(3), one Li(7), two equivalent Li(6), and one Si(2) atom. In the eighth O site, O(7) is bonded in a 5-coordinate geometry to one Li(5), one Li(7), two equivalent Li(6), and one Si(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Li10Mn(SiO5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   15.375
_cell_length_b   15.375
_cell_length_c   5.175
_cell_angle_alpha   80.373
_cell_angle_beta   80.373
_cell_angle_gamma   22.956
_symmetry_Int_Tables_number   1
_cell_volume   470.125
_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  0.491  0.491  0.756  1.0
  Li  Li1  1  0.225  0.644  0.400  1.0
  Li  Li2  1  0.644  0.225  0.400  1.0
  Li  Li3  1  0.867  0.867  0.282  1.0
  Li  Li4  1  0.084  0.652  0.734  1.0
  Li  Li5  1  0.652  0.084  0.734  1.0
  Li  Li6  1  0.325  0.325  0.429  1.0
  Li  Li7  1  0.047  0.562  0.100  1.0
  Li  Li8  1  0.562  0.047  0.100  1.0
  Li  Li9  1  0.269  0.269  0.823  1.0
  Li  Li10  1  0.731  0.731  0.177  1.0
  Li  Li11  1  0.438  0.953  0.900  1.0
  Li  Li12  1  0.953  0.438  0.900  1.0
  Li  Li13  1  0.675  0.675  0.571  1.0
  Li  Li14  1  0.348  0.916  0.266  1.0
  Li  Li15  1  0.916  0.348  0.266  1.0
  Li  Li16  1  0.133  0.133  0.718  1.0
  Li  Li17  1  0.775  0.356  0.600  1.0
  Li  Li18  1  0.356  0.775  0.600  1.0
  Li  Li19  1  0.509  0.509  0.244  1.0
  Mn  Mn20  1  0.962  0.962  0.704  1.0
  Mn  Mn21  1  0.038  0.038  0.296  1.0
  Si  Si22  1  0.400  0.400  0.006  1.0
  Si  Si23  1  0.780  0.780  0.628  1.0
  Si  Si24  1  0.220  0.220  0.372  1.0
  Si  Si25  1  0.600  0.600  0.994  1.0
  O  O26  1  0.450  0.450  0.099  1.0
  O  O27  1  0.907  0.907  0.547  1.0
  O  O28  1  0.404  0.404  0.681  1.0
  O  O29  1  0.153  0.588  0.120  1.0
  O  O30  1  0.588  0.153  0.120  1.0
  O  O31  1  0.031  0.581  0.715  1.0
  O  O32  1  0.581  0.031  0.715  1.0
  O  O33  1  0.786  0.786  0.307  1.0
  O  O34  1  0.272  0.272  0.219  1.0
  O  O35  1  0.728  0.728  0.781  1.0
  O  O36  1  0.214  0.214  0.693  1.0
  O  O37  1  0.969  0.419  0.285  1.0
  O  O38  1  0.419  0.969  0.285  1.0
  O  O39  1  0.412  0.847  0.880  1.0
  O  O40  1  0.847  0.412  0.880  1.0
  O  O41  1  0.596  0.596  0.319  1.0
  O  O42  1  0.093  0.093  0.453  1.0
  O  O43  1  0.550  0.550  0.901  1.0
  O  O44  1  0.246  0.754  0.500  1.0
  O  O45  1  0.754  0.246  0.500  1.0
[/CIF]
.