The structure described by Li3Mn2O5 is Caswellsilverite-like structured and crystallizes in the triclinic P-1 space group. There are four inequivalent Li sites. In the first Li site, Li(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form LiO6 octahedra that share corners with six equivalent Mn(1)O6 octahedra, edges with two equivalent Li(1)O6 octahedra, edges with two equivalent Mn(1)O6 octahedra, edges with four equivalent Li(2)O6 octahedra, and edges with four equivalent Li(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 3-10°. In the second Li site, Li(2) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form LiO6 octahedra that share corners with six equivalent Li(3)O6 octahedra, edges with two equivalent Li(2)O6 octahedra, edges with two equivalent Li(3)O6 octahedra, edges with four equivalent Li(1)O6 octahedra, and edges with four equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 9-14°. In the third Li site, Li(3) is bonded to one O(1), one O(3), two equivalent O(2), and two equivalent O(5) atoms to form LiO6 octahedra that share corners with three equivalent Li(2)O6 octahedra, corners with three equivalent Mn(2)O6 octahedra,  an edgeedge with one Li(2)O6 octahedra,  an edgeedge with one Mn(2)O6 octahedra, edges with two equivalent Li(1)O6 octahedra, edges with two equivalent Li(3)O6 octahedra, edges with two equivalent Li(4)O6 octahedra, and edges with four equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 4-14°. In the fourth Li site, Li(4) is bonded to one O(5), two equivalent O(3), and three equivalent O(4) atoms to form LiO6 octahedra that share corners with three equivalent Mn(1)O6 octahedra, corners with three equivalent Mn(2)O6 octahedra,  an edgeedge with one Mn(1)O6 octahedra, edges with two equivalent Li(3)O6 octahedra, edges with four equivalent Li(4)O6 octahedra, and edges with five equivalent Mn(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 5-12°. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(2), one O(5), two equivalent O(1), and two equivalent O(3) atoms to form MnO6 octahedra that share corners with three equivalent Li(1)O6 octahedra, corners with three equivalent Li(4)O6 octahedra,  an edgeedge with one Li(1)O6 octahedra,  an edgeedge with one Li(4)O6 octahedra, edges with two equivalent Li(2)O6 octahedra, edges with two equivalent Mn(1)O6 octahedra, edges with two equivalent Mn(2)O6 octahedra, and edges with four equivalent Li(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 3-12°. In the second Mn site, Mn(2) is bonded to one O(3), two equivalent O(5), and three equivalent O(4) atoms to form MnO6 octahedra that share corners with three equivalent Li(3)O6 octahedra, corners with three equivalent Li(4)O6 octahedra,  an edgeedge with one Li(3)O6 octahedra, edges with two equivalent Mn(1)O6 octahedra, edges with four equivalent Mn(2)O6 octahedra, and edges with five equivalent Li(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 4-10°. There are five inequivalent O sites. In the first O site, O(1) is bonded to one Li(2), one Li(3), two equivalent Li(1), and two equivalent Mn(1) atoms to form OLi4Mn2 octahedra that share corners with three equivalent O(3)Li3Mn3 octahedra, corners with three equivalent O(1)Li4Mn2 octahedra,  an edgeedge with one O(3)Li3Mn3 octahedra, edges with two equivalent O(5)Li3Mn3 octahedra, edges with three equivalent O(1)Li4Mn2 octahedra, and edges with six equivalent O(2)Li5Mn octahedra. The corner-sharing octahedral tilt angles range from 0-7°. In the second O site, O(2) is bonded to one Li(1), two equivalent Li(2), two equivalent Li(3), and one Mn(1) atom to form OLi5Mn octahedra that share corners with three equivalent O(5)Li3Mn3 octahedra, corners with three equivalent O(2)Li5Mn octahedra,  an edgeedge with one O(5)Li3Mn3 octahedra, edges with two equivalent O(3)Li3Mn3 octahedra, edges with three equivalent O(2)Li5Mn octahedra, and edges with six equivalent O(1)Li4Mn2 octahedra. The corner-sharing octahedral tilt angles range from 0-8°. In the third O site, O(3) is bonded to one Li(3), two equivalent Li(4), one Mn(2), and two equivalent Mn(1) atoms to form OLi3Mn3 octahedra that share corners with three equivalent O(4)Li3Mn3 octahedra, corners with three equivalent O(1)Li4Mn2 octahedra,  an edgeedge with one O(1)Li4Mn2 octahedra, edges with two equivalent O(3)Li3Mn3 octahedra, edges with two equivalent O(2)Li5Mn octahedra, edges with three equivalent O(4)Li3Mn3 octahedra, and edges with four equivalent O(5)Li3Mn3 octahedra. The corner-sharing octahedral tilt angles range from 1-9°. In the fourth O site, O(4) is bonded to three equivalent Li(4) and three equivalent Mn(2) atoms to form a mixture of corner and edge-sharing OLi3Mn3 octahedra. The corner-sharing octahedral tilt angles range from 1-9°. In the fifth O site, O(5) is bonded to one Li(4), two equivalent Li(3), one Mn(1), and two equivalent Mn(2) atoms to form OLi3Mn3 octahedra that share corners with three equivalent O(4)Li3Mn3 octahedra, corners with three equivalent O(2)Li5Mn octahedra,  an edgeedge with one O(2)Li5Mn octahedra, edges with two equivalent O(5)Li3Mn3 octahedra, edges with two equivalent O(1)Li4Mn2 octahedra, edges with three equivalent O(4)Li3Mn3 octahedra, and edges with four equivalent O(3)Li3Mn3 octahedra. The corner-sharing octahedral tilt angles range from 2-8°. is represented by the CIF file [CIF]
data_Li3Mn2O5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.966
_cell_length_b   12.171
_cell_length_c   5.091
_cell_angle_alpha   83.911
_cell_angle_beta   91.202
_cell_angle_gamma   86.006
_symmetry_Int_Tables_number   1
_cell_volume   182.197
_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  0.900  0.200  0.300  1.0
  Li  Li1  1  0.400  0.200  0.800  1.0
  Li  Li2  1  0.315  0.392  0.094  1.0
  Li  Li3  1  0.484  0.008  0.506  1.0
  Li  Li4  1  0.698  0.601  0.908  1.0
  Li  Li5  1  0.102  0.799  0.692  1.0
  Mn  Mn6  1  0.820  0.392  0.609  1.0
  Mn  Mn7  1  0.216  0.598  0.397  1.0
  Mn  Mn8  1  0.980  0.008  0.991  1.0
  Mn  Mn9  1  0.584  0.802  0.203  1.0
  O  O10  1  0.460  0.088  0.131  1.0
  O  O11  1  0.340  0.312  0.469  1.0
  O  O12  1  0.847  0.309  0.928  1.0
  O  O13  1  0.952  0.091  0.672  1.0
  O  O14  1  0.291  0.490  0.720  1.0
  O  O15  1  0.509  0.910  0.880  1.0
  O  O16  1  0.619  0.700  0.537  1.0
  O  O17  1  0.181  0.700  0.063  1.0
  O  O18  1  0.998  0.900  0.328  1.0
  O  O19  1  0.802  0.500  0.272  1.0
[/CIF]
.
The structure described by Li3Mn2O5 is Caswellsilverite-like structured and crystallizes in the triclinic P-1 space group. There are four inequivalent Li sites. In the first Li site, Li(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form LiO6 octahedra that share corners with six equivalent Mn(1)O6 octahedra, edges with two equivalent Li(1)O6 octahedra, edges with two equivalent Mn(1)O6 octahedra, edges with four equivalent Li(2)O6 octahedra, and edges with four equivalent Li(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 3-10°. In the second Li site, Li(2) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form LiO6 octahedra that share corners with six equivalent Li(3)O6 octahedra, edges with two equivalent Li(2)O6 octahedra, edges with two equivalent Li(3)O6 octahedra, edges with four equivalent Li(1)O6 octahedra, and edges with four equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 9-14°. In the third Li site, Li(3) is bonded to one O(1), one O(3), two equivalent O(2), and two equivalent O(5) atoms to form LiO6 octahedra that share corners with three equivalent Li(2)O6 octahedra, corners with three equivalent Mn(2)O6 octahedra,  an edgeedge with one Li(2)O6 octahedra,  an edgeedge with one Mn(2)O6 octahedra, edges with two equivalent Li(1)O6 octahedra, edges with two equivalent Li(3)O6 octahedra, edges with two equivalent Li(4)O6 octahedra, and edges with four equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 4-14°. In the fourth Li site, Li(4) is bonded to one O(5), two equivalent O(3), and three equivalent O(4) atoms to form LiO6 octahedra that share corners with three equivalent Mn(1)O6 octahedra, corners with three equivalent Mn(2)O6 octahedra,  an edgeedge with one Mn(1)O6 octahedra, edges with two equivalent Li(3)O6 octahedra, edges with four equivalent Li(4)O6 octahedra, and edges with five equivalent Mn(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 5-12°. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(2), one O(5), two equivalent O(1), and two equivalent O(3) atoms to form MnO6 octahedra that share corners with three equivalent Li(1)O6 octahedra, corners with three equivalent Li(4)O6 octahedra,  an edgeedge with one Li(1)O6 octahedra,  an edgeedge with one Li(4)O6 octahedra, edges with two equivalent Li(2)O6 octahedra, edges with two equivalent Mn(1)O6 octahedra, edges with two equivalent Mn(2)O6 octahedra, and edges with four equivalent Li(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 3-12°. In the second Mn site, Mn(2) is bonded to one O(3), two equivalent O(5), and three equivalent O(4) atoms to form MnO6 octahedra that share corners with three equivalent Li(3)O6 octahedra, corners with three equivalent Li(4)O6 octahedra,  an edgeedge with one Li(3)O6 octahedra, edges with two equivalent Mn(1)O6 octahedra, edges with four equivalent Mn(2)O6 octahedra, and edges with five equivalent Li(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 4-10°. There are five inequivalent O sites. In the first O site, O(1) is bonded to one Li(2), one Li(3), two equivalent Li(1), and two equivalent Mn(1) atoms to form OLi4Mn2 octahedra that share corners with three equivalent O(3)Li3Mn3 octahedra, corners with three equivalent O(1)Li4Mn2 octahedra,  an edgeedge with one O(3)Li3Mn3 octahedra, edges with two equivalent O(5)Li3Mn3 octahedra, edges with three equivalent O(1)Li4Mn2 octahedra, and edges with six equivalent O(2)Li5Mn octahedra. The corner-sharing octahedral tilt angles range from 0-7°. In the second O site, O(2) is bonded to one Li(1), two equivalent Li(2), two equivalent Li(3), and one Mn(1) atom to form OLi5Mn octahedra that share corners with three equivalent O(5)Li3Mn3 octahedra, corners with three equivalent O(2)Li5Mn octahedra,  an edgeedge with one O(5)Li3Mn3 octahedra, edges with two equivalent O(3)Li3Mn3 octahedra, edges with three equivalent O(2)Li5Mn octahedra, and edges with six equivalent O(1)Li4Mn2 octahedra. The corner-sharing octahedral tilt angles range from 0-8°. In the third O site, O(3) is bonded to one Li(3), two equivalent Li(4), one Mn(2), and two equivalent Mn(1) atoms to form OLi3Mn3 octahedra that share corners with three equivalent O(4)Li3Mn3 octahedra, corners with three equivalent O(1)Li4Mn2 octahedra,  an edgeedge with one O(1)Li4Mn2 octahedra, edges with two equivalent O(3)Li3Mn3 octahedra, edges with two equivalent O(2)Li5Mn octahedra, edges with three equivalent O(4)Li3Mn3 octahedra, and edges with four equivalent O(5)Li3Mn3 octahedra. The corner-sharing octahedral tilt angles range from 1-9°. In the fourth O site, O(4) is bonded to three equivalent Li(4) and three equivalent Mn(2) atoms to form a mixture of corner and edge-sharing OLi3Mn3 octahedra. The corner-sharing octahedral tilt angles range from 1-9°. In the fifth O site, O(5) is bonded to one Li(4), two equivalent Li(3), one Mn(1), and two equivalent Mn(2) atoms to form OLi3Mn3 octahedra that share corners with three equivalent O(4)Li3Mn3 octahedra, corners with three equivalent O(2)Li5Mn octahedra,  an edgeedge with one O(2)Li5Mn octahedra, edges with two equivalent O(5)Li3Mn3 octahedra, edges with two equivalent O(1)Li4Mn2 octahedra, edges with three equivalent O(4)Li3Mn3 octahedra, and edges with four equivalent O(3)Li3Mn3 octahedra. The corner-sharing octahedral tilt angles range from 2-8°. is represented by the CIF file [CIF]
data_Li3Mn2O5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.966
_cell_length_b   12.171
_cell_length_c   5.091
_cell_angle_alpha   83.911
_cell_angle_beta   91.202
_cell_angle_gamma   86.006
_symmetry_Int_Tables_number   1
_cell_volume   182.197
_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  0.900  0.200  0.300  1.0
  Li  Li1  1  0.400  0.200  0.800  1.0
  Li  Li2  1  0.315  0.392  0.094  1.0
  Li  Li3  1  0.484  0.008  0.506  1.0
  Li  Li4  1  0.698  0.601  0.908  1.0
  Li  Li5  1  0.102  0.799  0.692  1.0
  Mn  Mn6  1  0.820  0.392  0.609  1.0
  Mn  Mn7  1  0.216  0.598  0.397  1.0
  Mn  Mn8  1  0.980  0.008  0.991  1.0
  Mn  Mn9  1  0.584  0.802  0.203  1.0
  O  O10  1  0.460  0.088  0.131  1.0
  O  O11  1  0.340  0.312  0.469  1.0
  O  O12  1  0.847  0.309  0.928  1.0
  O  O13  1  0.952  0.091  0.672  1.0
  O  O14  1  0.291  0.490  0.720  1.0
  O  O15  1  0.509  0.910  0.880  1.0
  O  O16  1  0.619  0.700  0.537  1.0
  O  O17  1  0.181  0.700  0.063  1.0
  O  O18  1  0.998  0.900  0.328  1.0
  O  O19  1  0.802  0.500  0.272  1.0
[/CIF]
.