The compound described by LiMnP2O7 crystallizes in the monoclinic C2 space group. Li(1) is bonded in a distorted square co-planar geometry to two equivalent O(2) and two equivalent O(3) atoms. Mn(1) is bonded to two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms to form MnO6 octahedra that share corners with six equivalent P(1)O4 tetrahedra. P(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form PO4 tetrahedra that share corners with three equivalent Mn(1)O6 octahedra and  a cornercorner with one P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 28-53°. There are four inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to two equivalent P(1) atoms. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Li(1), one Mn(1), and one P(1) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Li(1), one Mn(1), and one P(1) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one Mn(1) and one P(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_LiMnP2O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.592
_cell_length_b   5.305
_cell_length_c   5.306
_cell_angle_alpha   100.414
_cell_angle_beta   100.938
_cell_angle_gamma   100.987
_symmetry_Int_Tables_number   1
_cell_volume   121.377
_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  1.000  0.249  0.750  1.0
  Mn  Mn1  1  0.000  0.872  0.128  1.0
  O  O2  1  0.500  0.478  0.522  1.0
  O  O3  1  0.194  0.638  0.827  1.0
  O  O4  1  0.806  0.173  0.362  1.0
  O  O5  1  0.284  0.177  0.075  1.0
  O  O6  1  0.717  0.925  0.822  1.0
  O  O7  1  0.733  0.542  0.124  1.0
  O  O8  1  0.267  0.875  0.458  1.0
  P  P9  1  0.591  0.337  0.263  1.0
  P  P10  1  0.409  0.737  0.663  1.0
[/CIF]
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The compound described by LiMnP2O7 crystallizes in the monoclinic C2 space group. Li(1) is bonded in a distorted square co-planar geometry to two equivalent O(2) and two equivalent O(3) atoms. Mn(1) is bonded to two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms to form MnO6 octahedra that share corners with six equivalent P(1)O4 tetrahedra. P(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form PO4 tetrahedra that share corners with three equivalent Mn(1)O6 octahedra and  a cornercorner with one P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 28-53°. There are four inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to two equivalent P(1) atoms. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Li(1), one Mn(1), and one P(1) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Li(1), one Mn(1), and one P(1) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one Mn(1) and one P(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_LiMnP2O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.592
_cell_length_b   5.305
_cell_length_c   5.306
_cell_angle_alpha   100.414
_cell_angle_beta   100.938
_cell_angle_gamma   100.987
_symmetry_Int_Tables_number   1
_cell_volume   121.377
_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  1.000  0.249  0.750  1.0
  Mn  Mn1  1  0.000  0.872  0.128  1.0
  O  O2  1  0.500  0.478  0.522  1.0
  O  O3  1  0.194  0.638  0.827  1.0
  O  O4  1  0.806  0.173  0.362  1.0
  O  O5  1  0.284  0.177  0.075  1.0
  O  O6  1  0.717  0.925  0.822  1.0
  O  O7  1  0.733  0.542  0.124  1.0
  O  O8  1  0.267  0.875  0.458  1.0
  P  P9  1  0.591  0.337  0.263  1.0
  P  P10  1  0.409  0.737  0.663  1.0
[/CIF]
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