The structure described by Li2Mn(CO3)2 crystallizes in the triclinic P1 space group. There are four inequivalent Li sites. In the first Li site, Li(1) is bonded in a trigonal planar geometry to one O(1), one O(10), and one O(3) atom. In the second Li site, Li(2) is bonded in a distorted trigonal planar geometry to one O(11), one O(2), one O(4), and one O(5) atom. In the third Li site, Li(3) is bonded in a distorted trigonal planar geometry to one O(11), one O(2), one O(8), and one O(9) atom. In the fourth Li site, Li(4) is bonded to one O(10), one O(12), one O(6), and one O(7) atom to form distorted LiO4 trigonal pyramids that share  a cornercorner with one Mn(1)O6 octahedra,  a cornercorner with one Mn(2)O6 octahedra, and  an edgeedge with one Mn(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 46-80°. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(11), one O(12), one O(2), one O(5), and one O(9) atom to form distorted MnO6 octahedra that share  a cornercorner with one Li(4)O4 trigonal pyramid. In the second Mn site, Mn(2) is bonded to one O(10), one O(3), one O(4), one O(6), one O(7), and one O(8) atom to form distorted MnO6 octahedra that share  a cornercorner with one Li(4)O4 trigonal pyramid and  an edgeedge with one Li(4)O4 trigonal pyramid. There are four inequivalent C sites. In the first C site, C(1) is bonded in a trigonal planar geometry to one O(1), one O(2), and one O(3) atom. In the second C site, C(2) is bonded in a trigonal planar geometry to one O(4), one O(5), and one O(7) atom. In the third C site, C(3) is bonded in a trigonal planar geometry to one O(6), one O(8), and one O(9) atom. In the fourth C site, C(4) is bonded in a trigonal planar geometry to one O(10), one O(11), and one O(12) atom. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Li(1), one Mn(1), and one C(1) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Li(2), one Li(3), one Mn(1), and one C(1) atom. In the third O site, O(3) is bonded in a trigonal planar geometry to one Li(1), one Mn(2), and one C(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Li(2), one Mn(2), and one C(2) atom. In the fifth O site, O(5) is bonded in a distorted trigonal non-coplanar geometry to one Li(2), one Mn(1), and one C(2) atom. In the sixth O site, O(6) is bonded in a distorted T-shaped geometry to one Li(4), one Mn(2), and one C(3) atom. In the seventh O site, O(7) is bonded in a distorted T-shaped geometry to one Li(4), one Mn(2), and one C(2) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one Li(3), one Mn(2), and one C(3) atom. In the ninth O site, O(9) is bonded in a distorted trigonal non-coplanar geometry to one Li(3), one Mn(1), and one C(3) atom. In the tenth O site, O(10) is bonded in a distorted tetrahedral geometry to one Li(1), one Li(4), one Mn(2), and one C(4) atom. In the eleventh O site, O(11) is bonded in a 4-coordinate geometry to one Li(2), one Li(3), one Mn(1), and one C(4) atom. In the twelfth O site, O(12) is bonded in a 3-coordinate geometry to one Li(4), one Mn(1), and one C(4) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Li2Mn(CO3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.169
_cell_length_b   6.808
_cell_length_c   7.959
_cell_angle_alpha   89.425
_cell_angle_beta   91.363
_cell_angle_gamma   68.967
_symmetry_Int_Tables_number   1
_cell_volume   261.286
_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  0.261  0.074  0.420  1.0
  Li  Li1  1  0.352  0.277  0.931  1.0
  Li  Li2  1  0.642  0.725  0.073  1.0
  Li  Li3  1  0.863  0.741  0.584  1.0
  Mn  Mn4  1  0.994  0.993  0.991  1.0
  Mn  Mn5  1  0.501  0.492  0.499  1.0
  C  C6  1  0.702  0.136  0.259  1.0
  C  C7  1  0.808  0.370  0.771  1.0
  C  C8  1  0.179  0.652  0.240  1.0
  C  C9  1  0.311  0.863  0.730  1.0
  O  O10  1  0.964  0.107  0.259  1.0
  O  O11  1  0.587  0.104  0.119  1.0
  O  O12  1  0.557  0.190  0.393  1.0
  O  O13  1  0.553  0.375  0.766  1.0
  O  O14  1  0.967  0.299  0.903  1.0
  O  O15  1  0.079  0.624  0.382  1.0
  O  O16  1  0.898  0.436  0.639  1.0
  O  O17  1  0.440  0.632  0.238  1.0
  O  O18  1  0.029  0.694  0.102  1.0
  O  O19  1  0.445  0.831  0.590  1.0
  O  O20  1  0.428  0.884  0.871  1.0
  O  O21  1  0.052  0.881  0.730  1.0
[/CIF]
.
The structure described by Li2Mn(CO3)2 crystallizes in the triclinic P1 space group. There are four inequivalent Li sites. In the first Li site, Li(1) is bonded in a trigonal planar geometry to one O(1), one O(10), and one O(3) atom. In the second Li site, Li(2) is bonded in a distorted trigonal planar geometry to one O(11), one O(2), one O(4), and one O(5) atom. In the third Li site, Li(3) is bonded in a distorted trigonal planar geometry to one O(11), one O(2), one O(8), and one O(9) atom. In the fourth Li site, Li(4) is bonded to one O(10), one O(12), one O(6), and one O(7) atom to form distorted LiO4 trigonal pyramids that share  a cornercorner with one Mn(1)O6 octahedra,  a cornercorner with one Mn(2)O6 octahedra, and  an edgeedge with one Mn(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 46-80°. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(11), one O(12), one O(2), one O(5), and one O(9) atom to form distorted MnO6 octahedra that share  a cornercorner with one Li(4)O4 trigonal pyramid. In the second Mn site, Mn(2) is bonded to one O(10), one O(3), one O(4), one O(6), one O(7), and one O(8) atom to form distorted MnO6 octahedra that share  a cornercorner with one Li(4)O4 trigonal pyramid and  an edgeedge with one Li(4)O4 trigonal pyramid. There are four inequivalent C sites. In the first C site, C(1) is bonded in a trigonal planar geometry to one O(1), one O(2), and one O(3) atom. In the second C site, C(2) is bonded in a trigonal planar geometry to one O(4), one O(5), and one O(7) atom. In the third C site, C(3) is bonded in a trigonal planar geometry to one O(6), one O(8), and one O(9) atom. In the fourth C site, C(4) is bonded in a trigonal planar geometry to one O(10), one O(11), and one O(12) atom. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Li(1), one Mn(1), and one C(1) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Li(2), one Li(3), one Mn(1), and one C(1) atom. In the third O site, O(3) is bonded in a trigonal planar geometry to one Li(1), one Mn(2), and one C(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Li(2), one Mn(2), and one C(2) atom. In the fifth O site, O(5) is bonded in a distorted trigonal non-coplanar geometry to one Li(2), one Mn(1), and one C(2) atom. In the sixth O site, O(6) is bonded in a distorted T-shaped geometry to one Li(4), one Mn(2), and one C(3) atom. In the seventh O site, O(7) is bonded in a distorted T-shaped geometry to one Li(4), one Mn(2), and one C(2) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one Li(3), one Mn(2), and one C(3) atom. In the ninth O site, O(9) is bonded in a distorted trigonal non-coplanar geometry to one Li(3), one Mn(1), and one C(3) atom. In the tenth O site, O(10) is bonded in a distorted tetrahedral geometry to one Li(1), one Li(4), one Mn(2), and one C(4) atom. In the eleventh O site, O(11) is bonded in a 4-coordinate geometry to one Li(2), one Li(3), one Mn(1), and one C(4) atom. In the twelfth O site, O(12) is bonded in a 3-coordinate geometry to one Li(4), one Mn(1), and one C(4) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Li2Mn(CO3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.169
_cell_length_b   6.808
_cell_length_c   7.959
_cell_angle_alpha   89.425
_cell_angle_beta   91.363
_cell_angle_gamma   68.967
_symmetry_Int_Tables_number   1
_cell_volume   261.286
_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  0.261  0.074  0.420  1.0
  Li  Li1  1  0.352  0.277  0.931  1.0
  Li  Li2  1  0.642  0.725  0.073  1.0
  Li  Li3  1  0.863  0.741  0.584  1.0
  Mn  Mn4  1  0.994  0.993  0.991  1.0
  Mn  Mn5  1  0.501  0.492  0.499  1.0
  C  C6  1  0.702  0.136  0.259  1.0
  C  C7  1  0.808  0.370  0.771  1.0
  C  C8  1  0.179  0.652  0.240  1.0
  C  C9  1  0.311  0.863  0.730  1.0
  O  O10  1  0.964  0.107  0.259  1.0
  O  O11  1  0.587  0.104  0.119  1.0
  O  O12  1  0.557  0.190  0.393  1.0
  O  O13  1  0.553  0.375  0.766  1.0
  O  O14  1  0.967  0.299  0.903  1.0
  O  O15  1  0.079  0.624  0.382  1.0
  O  O16  1  0.898  0.436  0.639  1.0
  O  O17  1  0.440  0.632  0.238  1.0
  O  O18  1  0.029  0.694  0.102  1.0
  O  O19  1  0.445  0.831  0.590  1.0
  O  O20  1  0.428  0.884  0.871  1.0
  O  O21  1  0.052  0.881  0.730  1.0
[/CIF]
.