The crystal structure described by Mn3BO5 crystallizes in the orthorhombic Pbam space group. There are four inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(2), one O(4), two equivalent O(3), and two equivalent O(5) atoms to form a mixture of edge and corner-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles range from 54-68°. In the second Mn site, Mn(2) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form a mixture of edge and corner-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles are 54°. In the third Mn site, Mn(3) is bonded to two equivalent O(3) and four equivalent O(4) atoms to form a mixture of edge and corner-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles are 17°. In the fourth Mn site, Mn(4) is bonded to one O(1), one O(5), two equivalent O(2), and two equivalent O(4) atoms to form a mixture of edge and corner-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles range from 17-68°. B(1) is bonded in a trigonal planar geometry to one O(1), one O(3), and one O(5) atom. There are five inequivalent O sites. In the first O site, O(5) is bonded in a 4-coordinate geometry to one Mn(4), two equivalent Mn(1), and one B(1) atom. In the second O site, O(1) is bonded in a distorted rectangular see-saw-like geometry to one Mn(4), two equivalent Mn(2), and one B(1) atom. In the third O site, O(2) is bonded to one Mn(1), one Mn(2), and two equivalent Mn(4) atoms to form OMn4 tetrahedra that share corners with three equivalent O(4)Mn5 square pyramids, corners with three equivalent O(2)Mn4 tetrahedra, and  an edgeedge with one O(4)Mn5 square pyramid. In the fourth O site, O(3) is bonded in a distorted rectangular see-saw-like geometry to one Mn(3), two equivalent Mn(1), and one B(1) atom. In the fifth O site, O(4) is bonded to one Mn(1), two equivalent Mn(3), and two equivalent Mn(4) atoms to form OMn5 square pyramids that share corners with two equivalent O(4)Mn5 square pyramids, corners with three equivalent O(2)Mn4 tetrahedra, edges with three equivalent O(4)Mn5 square pyramids, and  an edgeedge with one O(2)Mn4 tetrahedra. is represented by the CIF file [CIF]
data_Mn3BO5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.112
_cell_length_b   9.441
_cell_length_c   12.652
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   371.714
_cell_formula_units_Z   4
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  0.500  0.009  0.279  1.0
  Mn  Mn1  1  0.500  0.991  0.721  1.0
  Mn  Mn2  1  0.500  0.509  0.221  1.0
  Mn  Mn3  1  0.500  0.491  0.779  1.0
  Mn  Mn4  1  0.500  0.000  0.000  1.0
  Mn  Mn5  1  0.500  0.500  0.500  1.0
  Mn  Mn6  1  0.000  0.500  0.000  1.0
  Mn  Mn7  1  0.000  0.000  0.500  1.0
  Mn  Mn8  1  0.000  0.241  0.118  1.0
  Mn  Mn9  1  0.000  0.759  0.882  1.0
  Mn  Mn10  1  0.000  0.741  0.382  1.0
  Mn  Mn11  1  0.000  0.259  0.618  1.0
  B  B12  1  0.000  0.282  0.359  1.0
  B  B13  1  0.000  0.718  0.641  1.0
  B  B14  1  0.000  0.782  0.141  1.0
  B  B15  1  0.000  0.218  0.859  1.0
  O  O16  1  0.000  0.146  0.954  1.0
  O  O17  1  0.000  0.854  0.046  1.0
  O  O18  1  0.000  0.646  0.546  1.0
  O  O19  1  0.000  0.354  0.454  1.0
  O  O20  1  0.500  0.100  0.136  1.0
  O  O21  1  0.500  0.900  0.864  1.0
  O  O22  1  0.500  0.600  0.364  1.0
  O  O23  1  0.500  0.400  0.636  1.0
  O  O24  1  0.000  0.136  0.355  1.0
  O  O25  1  0.000  0.864  0.645  1.0
  O  O26  1  0.000  0.636  0.145  1.0
  O  O27  1  0.000  0.364  0.855  1.0
  O  O28  1  0.500  0.391  0.078  1.0
  O  O29  1  0.500  0.609  0.922  1.0
  O  O30  1  0.500  0.891  0.422  1.0
  O  O31  1  0.500  0.109  0.578  1.0
  O  O32  1  0.000  0.357  0.265  1.0
  O  O33  1  0.000  0.643  0.735  1.0
  O  O34  1  0.000  0.857  0.235  1.0
  O  O35  1  0.000  0.143  0.765  1.0
[/CIF]
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The crystal structure described by Mn3BO5 crystallizes in the orthorhombic Pbam space group. There are four inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(2), one O(4), two equivalent O(3), and two equivalent O(5) atoms to form a mixture of edge and corner-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles range from 54-68°. In the second Mn site, Mn(2) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form a mixture of edge and corner-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles are 54°. In the third Mn site, Mn(3) is bonded to two equivalent O(3) and four equivalent O(4) atoms to form a mixture of edge and corner-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles are 17°. In the fourth Mn site, Mn(4) is bonded to one O(1), one O(5), two equivalent O(2), and two equivalent O(4) atoms to form a mixture of edge and corner-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles range from 17-68°. B(1) is bonded in a trigonal planar geometry to one O(1), one O(3), and one O(5) atom. There are five inequivalent O sites. In the first O site, O(5) is bonded in a 4-coordinate geometry to one Mn(4), two equivalent Mn(1), and one B(1) atom. In the second O site, O(1) is bonded in a distorted rectangular see-saw-like geometry to one Mn(4), two equivalent Mn(2), and one B(1) atom. In the third O site, O(2) is bonded to one Mn(1), one Mn(2), and two equivalent Mn(4) atoms to form OMn4 tetrahedra that share corners with three equivalent O(4)Mn5 square pyramids, corners with three equivalent O(2)Mn4 tetrahedra, and  an edgeedge with one O(4)Mn5 square pyramid. In the fourth O site, O(3) is bonded in a distorted rectangular see-saw-like geometry to one Mn(3), two equivalent Mn(1), and one B(1) atom. In the fifth O site, O(4) is bonded to one Mn(1), two equivalent Mn(3), and two equivalent Mn(4) atoms to form OMn5 square pyramids that share corners with two equivalent O(4)Mn5 square pyramids, corners with three equivalent O(2)Mn4 tetrahedra, edges with three equivalent O(4)Mn5 square pyramids, and  an edgeedge with one O(2)Mn4 tetrahedra. is represented by the CIF file [CIF]
data_Mn3BO5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.112
_cell_length_b   9.441
_cell_length_c   12.652
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   371.714
_cell_formula_units_Z   4
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  0.500  0.009  0.279  1.0
  Mn  Mn1  1  0.500  0.991  0.721  1.0
  Mn  Mn2  1  0.500  0.509  0.221  1.0
  Mn  Mn3  1  0.500  0.491  0.779  1.0
  Mn  Mn4  1  0.500  0.000  0.000  1.0
  Mn  Mn5  1  0.500  0.500  0.500  1.0
  Mn  Mn6  1  0.000  0.500  0.000  1.0
  Mn  Mn7  1  0.000  0.000  0.500  1.0
  Mn  Mn8  1  0.000  0.241  0.118  1.0
  Mn  Mn9  1  0.000  0.759  0.882  1.0
  Mn  Mn10  1  0.000  0.741  0.382  1.0
  Mn  Mn11  1  0.000  0.259  0.618  1.0
  B  B12  1  0.000  0.282  0.359  1.0
  B  B13  1  0.000  0.718  0.641  1.0
  B  B14  1  0.000  0.782  0.141  1.0
  B  B15  1  0.000  0.218  0.859  1.0
  O  O16  1  0.000  0.146  0.954  1.0
  O  O17  1  0.000  0.854  0.046  1.0
  O  O18  1  0.000  0.646  0.546  1.0
  O  O19  1  0.000  0.354  0.454  1.0
  O  O20  1  0.500  0.100  0.136  1.0
  O  O21  1  0.500  0.900  0.864  1.0
  O  O22  1  0.500  0.600  0.364  1.0
  O  O23  1  0.500  0.400  0.636  1.0
  O  O24  1  0.000  0.136  0.355  1.0
  O  O25  1  0.000  0.864  0.645  1.0
  O  O26  1  0.000  0.636  0.145  1.0
  O  O27  1  0.000  0.364  0.855  1.0
  O  O28  1  0.500  0.391  0.078  1.0
  O  O29  1  0.500  0.609  0.922  1.0
  O  O30  1  0.500  0.891  0.422  1.0
  O  O31  1  0.500  0.109  0.578  1.0
  O  O32  1  0.000  0.357  0.265  1.0
  O  O33  1  0.000  0.643  0.735  1.0
  O  O34  1  0.000  0.857  0.235  1.0
  O  O35  1  0.000  0.143  0.765  1.0
[/CIF]
.