The structure described by Mn3(PO7)2 crystallizes in the monoclinic P2_1 space group. There are three inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(10), one O(2), one O(3), one O(4), and one O(9) atom to form MnO6 octahedra that share corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, and edges with two equivalent Mn(2)O6 octahedra. In the second Mn site, Mn(2) is bonded to one O(10), one O(3), one O(4), one O(5), one O(6), and one O(9) atom to form MnO6 octahedra that share corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, and edges with two equivalent Mn(1)O6 octahedra. In the third Mn site, Mn(3) is bonded in a 6-coordinate geometry to one O(11), one O(12), one O(13), one O(14), one O(7), and one O(8) atom. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(3), one O(5), and one O(7) atom to form PO4 tetrahedra that share corners with two equivalent Mn(1)O6 octahedra and corners with two equivalent Mn(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 47-54°. In the second P site, P(2) is bonded to one O(2), one O(4), one O(6), and one O(8) atom to form PO4 tetrahedra that share corners with two equivalent Mn(1)O6 octahedra and corners with two equivalent Mn(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 48-54°. There are fourteen inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one Mn(1) and one P(1) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one Mn(1) and one P(2) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Mn(1), one Mn(2), and one P(1) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Mn(1), one Mn(2), and one P(2) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one Mn(2) and one P(1) atom. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to one Mn(2) and one P(2) atom. In the seventh O site, O(7) is bonded in a bent 120 degrees geometry to one Mn(3) and one P(1) atom. In the eighth O site, O(8) is bonded in a bent 150 degrees geometry to one Mn(3) and one P(2) atom. In the ninth O site, O(9) is bonded in a water-like geometry to one Mn(1) and one Mn(2) atom. In the tenth O site, O(10) is bonded in a water-like geometry to one Mn(1) and one Mn(2) atom. In the eleventh O site, O(11) is bonded in a single-bond geometry to one Mn(3) atom. In the twelfth O site, O(12) is bonded in a single-bond geometry to one Mn(3) atom. In the thirteenth O site, O(13) is bonded in a single-bond geometry to one Mn(3) atom. In the fourteenth O site, O(14) is bonded in a single-bond geometry to one Mn(3) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Mn3(PO7)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   19.129
_cell_length_b   5.246
_cell_length_c   5.279
_cell_angle_alpha   70.109
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   498.226
_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  0.501  0.227  0.574  1.0
  Mn  Mn1  1  0.001  0.773  0.426  1.0
  Mn  Mn2  1  0.502  0.728  0.074  1.0
  Mn  Mn3  1  0.002  0.272  0.926  1.0
  Mn  Mn4  1  0.756  0.530  0.540  1.0
  Mn  Mn5  1  0.256  0.470  0.460  1.0
  P  P6  1  0.600  0.707  0.554  1.0
  P  P7  1  0.100  0.293  0.446  1.0
  P  P8  1  0.404  0.745  0.596  1.0
  P  P9  1  0.904  0.255  0.404  1.0
  O  O10  1  0.579  0.405  0.682  1.0
  O  O11  1  0.079  0.595  0.318  1.0
  O  O12  1  0.423  0.049  0.473  1.0
  O  O13  1  0.923  0.951  0.527  1.0
  O  O14  1  0.556  0.870  0.707  1.0
  O  O15  1  0.056  0.130  0.293  1.0
  O  O16  1  0.451  0.588  0.441  1.0
  O  O17  1  0.951  0.412  0.559  1.0
  O  O18  1  0.582  0.829  0.253  1.0
  O  O19  1  0.082  0.171  0.747  1.0
  O  O20  1  0.423  0.625  0.896  1.0
  O  O21  1  0.923  0.375  0.104  1.0
  O  O22  1  0.678  0.740  0.609  1.0
  O  O23  1  0.178  0.260  0.391  1.0
  O  O24  1  0.827  0.292  0.454  1.0
  O  O25  1  0.327  0.708  0.546  1.0
  O  O26  1  0.533  0.363  0.214  1.0
  O  O27  1  0.033  0.637  0.786  1.0
  O  O28  1  0.470  0.090  0.937  1.0
  O  O29  1  0.970  0.910  0.063  1.0
  O  O30  1  0.698  0.458  0.205  1.0
  O  O31  1  0.198  0.542  0.795  1.0
  O  O32  1  0.805  0.595  0.760  1.0
  O  O33  1  0.305  0.405  0.240  1.0
  O  O34  1  0.705  0.246  0.639  1.0
  O  O35  1  0.205  0.754  0.361  1.0
  O  O36  1  0.764  0.762  0.214  1.0
  O  O37  1  0.264  0.238  0.786  1.0
[/CIF]
.
The structure described by Mn3(PO7)2 crystallizes in the monoclinic P2_1 space group. There are three inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(10), one O(2), one O(3), one O(4), and one O(9) atom to form MnO6 octahedra that share corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, and edges with two equivalent Mn(2)O6 octahedra. In the second Mn site, Mn(2) is bonded to one O(10), one O(3), one O(4), one O(5), one O(6), and one O(9) atom to form MnO6 octahedra that share corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, and edges with two equivalent Mn(1)O6 octahedra. In the third Mn site, Mn(3) is bonded in a 6-coordinate geometry to one O(11), one O(12), one O(13), one O(14), one O(7), and one O(8) atom. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(3), one O(5), and one O(7) atom to form PO4 tetrahedra that share corners with two equivalent Mn(1)O6 octahedra and corners with two equivalent Mn(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 47-54°. In the second P site, P(2) is bonded to one O(2), one O(4), one O(6), and one O(8) atom to form PO4 tetrahedra that share corners with two equivalent Mn(1)O6 octahedra and corners with two equivalent Mn(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 48-54°. There are fourteen inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one Mn(1) and one P(1) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one Mn(1) and one P(2) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Mn(1), one Mn(2), and one P(1) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Mn(1), one Mn(2), and one P(2) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one Mn(2) and one P(1) atom. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to one Mn(2) and one P(2) atom. In the seventh O site, O(7) is bonded in a bent 120 degrees geometry to one Mn(3) and one P(1) atom. In the eighth O site, O(8) is bonded in a bent 150 degrees geometry to one Mn(3) and one P(2) atom. In the ninth O site, O(9) is bonded in a water-like geometry to one Mn(1) and one Mn(2) atom. In the tenth O site, O(10) is bonded in a water-like geometry to one Mn(1) and one Mn(2) atom. In the eleventh O site, O(11) is bonded in a single-bond geometry to one Mn(3) atom. In the twelfth O site, O(12) is bonded in a single-bond geometry to one Mn(3) atom. In the thirteenth O site, O(13) is bonded in a single-bond geometry to one Mn(3) atom. In the fourteenth O site, O(14) is bonded in a single-bond geometry to one Mn(3) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Mn3(PO7)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   19.129
_cell_length_b   5.246
_cell_length_c   5.279
_cell_angle_alpha   70.109
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   498.226
_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  0.501  0.227  0.574  1.0
  Mn  Mn1  1  0.001  0.773  0.426  1.0
  Mn  Mn2  1  0.502  0.728  0.074  1.0
  Mn  Mn3  1  0.002  0.272  0.926  1.0
  Mn  Mn4  1  0.756  0.530  0.540  1.0
  Mn  Mn5  1  0.256  0.470  0.460  1.0
  P  P6  1  0.600  0.707  0.554  1.0
  P  P7  1  0.100  0.293  0.446  1.0
  P  P8  1  0.404  0.745  0.596  1.0
  P  P9  1  0.904  0.255  0.404  1.0
  O  O10  1  0.579  0.405  0.682  1.0
  O  O11  1  0.079  0.595  0.318  1.0
  O  O12  1  0.423  0.049  0.473  1.0
  O  O13  1  0.923  0.951  0.527  1.0
  O  O14  1  0.556  0.870  0.707  1.0
  O  O15  1  0.056  0.130  0.293  1.0
  O  O16  1  0.451  0.588  0.441  1.0
  O  O17  1  0.951  0.412  0.559  1.0
  O  O18  1  0.582  0.829  0.253  1.0
  O  O19  1  0.082  0.171  0.747  1.0
  O  O20  1  0.423  0.625  0.896  1.0
  O  O21  1  0.923  0.375  0.104  1.0
  O  O22  1  0.678  0.740  0.609  1.0
  O  O23  1  0.178  0.260  0.391  1.0
  O  O24  1  0.827  0.292  0.454  1.0
  O  O25  1  0.327  0.708  0.546  1.0
  O  O26  1  0.533  0.363  0.214  1.0
  O  O27  1  0.033  0.637  0.786  1.0
  O  O28  1  0.470  0.090  0.937  1.0
  O  O29  1  0.970  0.910  0.063  1.0
  O  O30  1  0.698  0.458  0.205  1.0
  O  O31  1  0.198  0.542  0.795  1.0
  O  O32  1  0.805  0.595  0.760  1.0
  O  O33  1  0.305  0.405  0.240  1.0
  O  O34  1  0.705  0.246  0.639  1.0
  O  O35  1  0.205  0.754  0.361  1.0
  O  O36  1  0.764  0.762  0.214  1.0
  O  O37  1  0.264  0.238  0.786  1.0
[/CIF]
.