The compound described by Li2Mn5(Si2O7)2 crystallizes in the triclinic P-1 space group. Li(1) is bonded in a 3-coordinate geometry to one O(1), one O(4), and one O(5) atom. There are three inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a 6-coordinate geometry to two equivalent O(2), two equivalent O(5), and two equivalent O(7) atoms. In the second Mn site, Mn(2) is bonded in a 3-coordinate geometry to one O(1), one O(2), and one O(7) atom. In the third Mn site, Mn(3) is bonded in a 3-coordinate geometry to one O(2), one O(4), one O(6), and one O(7) atom. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded in a 4-coordinate geometry to one O(2), one O(3), one O(4), and one O(7) atom. In the second Si site, Si(2) is bonded in a 2-coordinate geometry to one O(1) and one O(6) atom. 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 Mn(2), and one Si(2) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Mn(1), one Mn(2), one Mn(3), and one Si(1) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one Si(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Li(1), one Mn(3), and one Si(1) atom. In the fifth O site, O(5) is bonded in a 2-coordinate geometry to one Li(1) and one Mn(1) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to one Mn(3) and one Si(2) atom. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to one Mn(1), one Mn(2), one Mn(3), and one Si(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Li2Mn5(Si2O7)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.656
_cell_length_b   8.105
_cell_length_c   5.562
_cell_angle_alpha   93.440
_cell_angle_beta   103.833
_cell_angle_gamma   113.667
_symmetry_Int_Tables_number   1
_cell_volume   302.156
_cell_formula_units_Z   1
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  0.460  0.229  0.101  1.0
  Li  Li1  1  0.540  0.771  0.899  1.0
  Mn  Mn2  1  0.000  0.000  0.000  1.0
  Mn  Mn3  1  0.820  0.092  0.380  1.0
  Mn  Mn4  1  0.704  0.631  0.581  1.0
  Mn  Mn5  1  0.296  0.369  0.419  1.0
  Mn  Mn6  1  0.180  0.908  0.620  1.0
  Si  Si7  1  0.860  0.506  0.217  1.0
  Si  Si8  1  0.390  0.793  0.208  1.0
  Si  Si9  1  0.610  0.207  0.792  1.0
  Si  Si10  1  0.140  0.494  0.783  1.0
  O  O11  1  0.569  0.884  0.177  1.0
  O  O12  1  0.969  0.796  0.325  1.0
  O  O13  1  0.268  0.530  0.023  1.0
  O  O14  1  0.725  0.424  0.315  1.0
  O  O15  1  0.273  0.028  0.189  1.0
  O  O16  1  0.433  0.699  0.407  1.0
  O  O17  1  0.003  0.304  0.238  1.0
  O  O18  1  0.997  0.696  0.762  1.0
  O  O19  1  0.567  0.301  0.593  1.0
  O  O20  1  0.727  0.972  0.811  1.0
  O  O21  1  0.275  0.576  0.685  1.0
  O  O22  1  0.732  0.470  0.977  1.0
  O  O23  1  0.031  0.204  0.675  1.0
  O  O24  1  0.431  0.116  0.823  1.0
[/CIF]
.
The compound described by Li2Mn5(Si2O7)2 crystallizes in the triclinic P-1 space group. Li(1) is bonded in a 3-coordinate geometry to one O(1), one O(4), and one O(5) atom. There are three inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a 6-coordinate geometry to two equivalent O(2), two equivalent O(5), and two equivalent O(7) atoms. In the second Mn site, Mn(2) is bonded in a 3-coordinate geometry to one O(1), one O(2), and one O(7) atom. In the third Mn site, Mn(3) is bonded in a 3-coordinate geometry to one O(2), one O(4), one O(6), and one O(7) atom. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded in a 4-coordinate geometry to one O(2), one O(3), one O(4), and one O(7) atom. In the second Si site, Si(2) is bonded in a 2-coordinate geometry to one O(1) and one O(6) atom. 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 Mn(2), and one Si(2) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Mn(1), one Mn(2), one Mn(3), and one Si(1) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one Si(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Li(1), one Mn(3), and one Si(1) atom. In the fifth O site, O(5) is bonded in a 2-coordinate geometry to one Li(1) and one Mn(1) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to one Mn(3) and one Si(2) atom. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to one Mn(1), one Mn(2), one Mn(3), and one Si(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Li2Mn5(Si2O7)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.656
_cell_length_b   8.105
_cell_length_c   5.562
_cell_angle_alpha   93.440
_cell_angle_beta   103.833
_cell_angle_gamma   113.667
_symmetry_Int_Tables_number   1
_cell_volume   302.156
_cell_formula_units_Z   1
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  0.460  0.229  0.101  1.0
  Li  Li1  1  0.540  0.771  0.899  1.0
  Mn  Mn2  1  0.000  0.000  0.000  1.0
  Mn  Mn3  1  0.820  0.092  0.380  1.0
  Mn  Mn4  1  0.704  0.631  0.581  1.0
  Mn  Mn5  1  0.296  0.369  0.419  1.0
  Mn  Mn6  1  0.180  0.908  0.620  1.0
  Si  Si7  1  0.860  0.506  0.217  1.0
  Si  Si8  1  0.390  0.793  0.208  1.0
  Si  Si9  1  0.610  0.207  0.792  1.0
  Si  Si10  1  0.140  0.494  0.783  1.0
  O  O11  1  0.569  0.884  0.177  1.0
  O  O12  1  0.969  0.796  0.325  1.0
  O  O13  1  0.268  0.530  0.023  1.0
  O  O14  1  0.725  0.424  0.315  1.0
  O  O15  1  0.273  0.028  0.189  1.0
  O  O16  1  0.433  0.699  0.407  1.0
  O  O17  1  0.003  0.304  0.238  1.0
  O  O18  1  0.997  0.696  0.762  1.0
  O  O19  1  0.567  0.301  0.593  1.0
  O  O20  1  0.727  0.972  0.811  1.0
  O  O21  1  0.275  0.576  0.685  1.0
  O  O22  1  0.732  0.470  0.977  1.0
  O  O23  1  0.031  0.204  0.675  1.0
  O  O24  1  0.431  0.116  0.823  1.0
[/CIF]
.