The crystal structure described by Mn2(PO3)5 crystallizes in the monoclinic P2/c space group. Mn(1) is bonded to one O(2), one O(3), one O(5), one O(7), and one O(8) atom to form distorted MnO5 square pyramids that share  a cornercorner with one P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, and corners with two equivalent P(3)O4 tetrahedra. There are three inequivalent P sites. In the first P site, P(1) is bonded to two equivalent O(3) and two equivalent O(4) atoms to form PO4 tetrahedra that share corners with two equivalent Mn(1)O5 square pyramids and corners with two equivalent P(2)O4 tetrahedra. In the second P site, P(2) is bonded to one O(1), one O(4), one O(7), and one O(8) atom to form PO4 tetrahedra that share corners with two equivalent Mn(1)O5 square pyramids,  a cornercorner with one P(1)O4 tetrahedra, and  a cornercorner with one P(3)O4 tetrahedra. In the third P site, P(3) is bonded to one O(1), one O(2), one O(5), and one O(6) atom to form PO4 tetrahedra that share corners with two equivalent Mn(1)O5 square pyramids,  a cornercorner with one P(2)O4 tetrahedra, and  a cornercorner with one P(3)O4 tetrahedra. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to one P(2) and one P(3) atom. In the second O site, O(2) is bonded in a bent 150 degrees geometry to one Mn(1) and one P(3) atom. In the third O site, O(3) is bonded in a distorted bent 120 degrees geometry to 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 P(1) and one P(2) atom. In the fifth O site, O(5) is bonded in a 2-coordinate geometry to one Mn(1) and one P(3) atom. In the sixth O site, O(6) is bonded in a linear geometry to two equivalent P(3) atoms. In the seventh O site, O(7) is bonded in a bent 150 degrees geometry to one Mn(1) and one P(2) atom. In the eighth O site, O(8) is bonded in a distorted bent 150 degrees geometry to one Mn(1) and one P(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Mn2(PO3)5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.551
_cell_length_b   5.404
_cell_length_c   13.635
_cell_angle_alpha   71.404
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   597.179
_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
  Mn  Mn0  1  0.718  0.905  0.955  1.0
  Mn  Mn1  1  0.282  0.905  0.455  1.0
  Mn  Mn2  1  0.718  0.095  0.545  1.0
  Mn  Mn3  1  0.282  0.095  0.045  1.0
  P  P4  1  0.058  0.000  0.250  1.0
  P  P5  1  0.942  0.000  0.750  1.0
  P  P6  1  0.174  0.305  0.592  1.0
  P  P7  1  0.491  0.465  0.640  1.0
  P  P8  1  0.174  0.695  0.908  1.0
  P  P9  1  0.826  0.305  0.092  1.0
  P  P10  1  0.509  0.465  0.140  1.0
  P  P11  1  0.826  0.695  0.408  1.0
  P  P12  1  0.491  0.535  0.860  1.0
  P  P13  1  0.509  0.535  0.360  1.0
  O  O14  1  0.659  0.716  0.349  1.0
  O  O15  1  0.632  0.695  0.868  1.0
  O  O16  1  0.855  0.094  0.828  1.0
  O  O17  1  0.341  0.716  0.849  1.0
  O  O18  1  0.059  0.768  0.810  1.0
  O  O19  1  0.855  0.906  0.672  1.0
  O  O20  1  0.941  0.232  0.190  1.0
  O  O21  1  0.941  0.768  0.310  1.0
  O  O22  1  0.145  0.094  0.328  1.0
  O  O23  1  0.529  0.734  0.061  1.0
  O  O24  1  0.498  0.500  0.250  1.0
  O  O25  1  0.824  0.901  0.460  1.0
  O  O26  1  0.145  0.906  0.172  1.0
  O  O27  1  0.855  0.415  0.469  1.0
  O  O28  1  0.341  0.284  0.651  1.0
  O  O29  1  0.632  0.305  0.632  1.0
  O  O30  1  0.529  0.266  0.439  1.0
  O  O31  1  0.824  0.099  0.040  1.0
  O  O32  1  0.368  0.695  0.368  1.0
  O  O33  1  0.145  0.585  0.531  1.0
  O  O34  1  0.145  0.415  0.969  1.0
  O  O35  1  0.659  0.284  0.151  1.0
  O  O36  1  0.855  0.585  0.031  1.0
  O  O37  1  0.471  0.266  0.939  1.0
  O  O38  1  0.059  0.232  0.690  1.0
  O  O39  1  0.176  0.099  0.540  1.0
  O  O40  1  0.502  0.500  0.750  1.0
  O  O41  1  0.176  0.901  0.960  1.0
  O  O42  1  0.471  0.734  0.561  1.0
  O  O43  1  0.368  0.305  0.132  1.0
[/CIF]
.
The crystal structure described by Mn2(PO3)5 crystallizes in the monoclinic P2/c space group. Mn(1) is bonded to one O(2), one O(3), one O(5), one O(7), and one O(8) atom to form distorted MnO5 square pyramids that share  a cornercorner with one P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, and corners with two equivalent P(3)O4 tetrahedra. There are three inequivalent P sites. In the first P site, P(1) is bonded to two equivalent O(3) and two equivalent O(4) atoms to form PO4 tetrahedra that share corners with two equivalent Mn(1)O5 square pyramids and corners with two equivalent P(2)O4 tetrahedra. In the second P site, P(2) is bonded to one O(1), one O(4), one O(7), and one O(8) atom to form PO4 tetrahedra that share corners with two equivalent Mn(1)O5 square pyramids,  a cornercorner with one P(1)O4 tetrahedra, and  a cornercorner with one P(3)O4 tetrahedra. In the third P site, P(3) is bonded to one O(1), one O(2), one O(5), and one O(6) atom to form PO4 tetrahedra that share corners with two equivalent Mn(1)O5 square pyramids,  a cornercorner with one P(2)O4 tetrahedra, and  a cornercorner with one P(3)O4 tetrahedra. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to one P(2) and one P(3) atom. In the second O site, O(2) is bonded in a bent 150 degrees geometry to one Mn(1) and one P(3) atom. In the third O site, O(3) is bonded in a distorted bent 120 degrees geometry to 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 P(1) and one P(2) atom. In the fifth O site, O(5) is bonded in a 2-coordinate geometry to one Mn(1) and one P(3) atom. In the sixth O site, O(6) is bonded in a linear geometry to two equivalent P(3) atoms. In the seventh O site, O(7) is bonded in a bent 150 degrees geometry to one Mn(1) and one P(2) atom. In the eighth O site, O(8) is bonded in a distorted bent 150 degrees geometry to one Mn(1) and one P(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Mn2(PO3)5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.551
_cell_length_b   5.404
_cell_length_c   13.635
_cell_angle_alpha   71.404
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   597.179
_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
  Mn  Mn0  1  0.718  0.905  0.955  1.0
  Mn  Mn1  1  0.282  0.905  0.455  1.0
  Mn  Mn2  1  0.718  0.095  0.545  1.0
  Mn  Mn3  1  0.282  0.095  0.045  1.0
  P  P4  1  0.058  0.000  0.250  1.0
  P  P5  1  0.942  0.000  0.750  1.0
  P  P6  1  0.174  0.305  0.592  1.0
  P  P7  1  0.491  0.465  0.640  1.0
  P  P8  1  0.174  0.695  0.908  1.0
  P  P9  1  0.826  0.305  0.092  1.0
  P  P10  1  0.509  0.465  0.140  1.0
  P  P11  1  0.826  0.695  0.408  1.0
  P  P12  1  0.491  0.535  0.860  1.0
  P  P13  1  0.509  0.535  0.360  1.0
  O  O14  1  0.659  0.716  0.349  1.0
  O  O15  1  0.632  0.695  0.868  1.0
  O  O16  1  0.855  0.094  0.828  1.0
  O  O17  1  0.341  0.716  0.849  1.0
  O  O18  1  0.059  0.768  0.810  1.0
  O  O19  1  0.855  0.906  0.672  1.0
  O  O20  1  0.941  0.232  0.190  1.0
  O  O21  1  0.941  0.768  0.310  1.0
  O  O22  1  0.145  0.094  0.328  1.0
  O  O23  1  0.529  0.734  0.061  1.0
  O  O24  1  0.498  0.500  0.250  1.0
  O  O25  1  0.824  0.901  0.460  1.0
  O  O26  1  0.145  0.906  0.172  1.0
  O  O27  1  0.855  0.415  0.469  1.0
  O  O28  1  0.341  0.284  0.651  1.0
  O  O29  1  0.632  0.305  0.632  1.0
  O  O30  1  0.529  0.266  0.439  1.0
  O  O31  1  0.824  0.099  0.040  1.0
  O  O32  1  0.368  0.695  0.368  1.0
  O  O33  1  0.145  0.585  0.531  1.0
  O  O34  1  0.145  0.415  0.969  1.0
  O  O35  1  0.659  0.284  0.151  1.0
  O  O36  1  0.855  0.585  0.031  1.0
  O  O37  1  0.471  0.266  0.939  1.0
  O  O38  1  0.059  0.232  0.690  1.0
  O  O39  1  0.176  0.099  0.540  1.0
  O  O40  1  0.502  0.500  0.750  1.0
  O  O41  1  0.176  0.901  0.960  1.0
  O  O42  1  0.471  0.734  0.561  1.0
  O  O43  1  0.368  0.305  0.132  1.0
[/CIF]
.