The crystal structure described by Li2Mn(CO3)2 crystallizes in the orthorhombic Fdd2 space group. Li(1) is bonded to one O(1), one O(3), and two equivalent O(2) atoms to form LiO4 tetrahedra that share corners with two equivalent Mn(1)O6 pentagonal pyramids, corners with two equivalent Li(1)O4 tetrahedra, and  an edgeedge with one Mn(1)O6 pentagonal pyramid. Mn(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form distorted MnO6 pentagonal pyramids that share corners with four equivalent Li(1)O4 tetrahedra and edges with two equivalent Li(1)O4 tetrahedra. C(1) is bonded in a trigonal planar geometry to one O(1), one O(2), and one O(3) atom. There are three 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 two equivalent Li(1), one Mn(1), and one C(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Li(1), one Mn(1), and one C(1) atom. is represented by the CIF file [CIF]
data_Li2Mn(CO3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.413
_cell_length_b   6.511
_cell_length_c   8.755
_cell_angle_alpha   82.625
_cell_angle_beta   72.010
_cell_angle_gamma   65.436
_symmetry_Int_Tables_number   1
_cell_volume   266.911
_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
  C  C0  1  0.760  0.400  0.194  1.0
  C  C1  1  0.704  0.900  0.306  1.0
  C  C2  1  0.910  0.100  0.694  1.0
  C  C3  1  0.353  0.600  0.806  1.0
  Li  Li4  1  0.222  0.554  0.173  1.0
  Li  Li5  1  0.145  0.054  0.327  1.0
  Li  Li6  1  0.526  0.946  0.673  1.0
  Li  Li7  1  0.948  0.446  0.827  1.0
  Mn  Mn8  1  0.881  0.000  0.000  1.0
  Mn  Mn9  1  0.631  0.500  0.500  1.0
  O  O10  1  0.811  0.341  0.048  1.0
  O  O11  1  0.610  0.841  0.452  1.0
  O  O12  1  0.903  0.159  0.548  1.0
  O  O13  1  0.201  0.658  0.952  1.0
  O  O14  1  0.961  0.893  0.249  1.0
  O  O15  1  0.960  0.393  0.251  1.0
  O  O16  1  0.603  0.607  0.749  1.0
  O  O17  1  0.103  0.107  0.751  1.0
  O  O18  1  0.548  0.963  0.208  1.0
  O  O19  1  0.505  0.463  0.292  1.0
  O  O20  1  0.260  0.537  0.708  1.0
  O  O21  1  0.719  0.037  0.792  1.0
[/CIF]
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The crystal structure described by Li2Mn(CO3)2 crystallizes in the orthorhombic Fdd2 space group. Li(1) is bonded to one O(1), one O(3), and two equivalent O(2) atoms to form LiO4 tetrahedra that share corners with two equivalent Mn(1)O6 pentagonal pyramids, corners with two equivalent Li(1)O4 tetrahedra, and  an edgeedge with one Mn(1)O6 pentagonal pyramid. Mn(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form distorted MnO6 pentagonal pyramids that share corners with four equivalent Li(1)O4 tetrahedra and edges with two equivalent Li(1)O4 tetrahedra. C(1) is bonded in a trigonal planar geometry to one O(1), one O(2), and one O(3) atom. There are three 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 two equivalent Li(1), one Mn(1), and one C(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Li(1), one Mn(1), and one C(1) atom. is represented by the CIF file [CIF]
data_Li2Mn(CO3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.413
_cell_length_b   6.511
_cell_length_c   8.755
_cell_angle_alpha   82.625
_cell_angle_beta   72.010
_cell_angle_gamma   65.436
_symmetry_Int_Tables_number   1
_cell_volume   266.911
_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
  C  C0  1  0.760  0.400  0.194  1.0
  C  C1  1  0.704  0.900  0.306  1.0
  C  C2  1  0.910  0.100  0.694  1.0
  C  C3  1  0.353  0.600  0.806  1.0
  Li  Li4  1  0.222  0.554  0.173  1.0
  Li  Li5  1  0.145  0.054  0.327  1.0
  Li  Li6  1  0.526  0.946  0.673  1.0
  Li  Li7  1  0.948  0.446  0.827  1.0
  Mn  Mn8  1  0.881  0.000  0.000  1.0
  Mn  Mn9  1  0.631  0.500  0.500  1.0
  O  O10  1  0.811  0.341  0.048  1.0
  O  O11  1  0.610  0.841  0.452  1.0
  O  O12  1  0.903  0.159  0.548  1.0
  O  O13  1  0.201  0.658  0.952  1.0
  O  O14  1  0.961  0.893  0.249  1.0
  O  O15  1  0.960  0.393  0.251  1.0
  O  O16  1  0.603  0.607  0.749  1.0
  O  O17  1  0.103  0.107  0.751  1.0
  O  O18  1  0.548  0.963  0.208  1.0
  O  O19  1  0.505  0.463  0.292  1.0
  O  O20  1  0.260  0.537  0.708  1.0
  O  O21  1  0.719  0.037  0.792  1.0
[/CIF]
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