The structure described by Mn2OBO3 crystallizes in the monoclinic P2_1/c space group. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(3), two equivalent O(2), and two equivalent O(4) atoms to form a mixture of corner and edge-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles range from 53-67°. In the second Mn site, Mn(2) is bonded to one O(4), two equivalent O(3), and three equivalent O(1) atoms to form a mixture of distorted corner and edge-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles range from 53-67°. B(1) is bonded in a trigonal planar geometry to one O(2), one O(3), and one O(4) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded to one Mn(1) and three equivalent Mn(2) atoms to form a mixture of distorted corner and edge-sharing OMn4 tetrahedra. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to two equivalent Mn(1) and one B(1) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Mn(1), two equivalent Mn(2), and one B(1) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Mn(2), two equivalent Mn(1), and one B(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Mn2BO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.246
_cell_length_b   9.325
_cell_length_c   9.440
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.460
_symmetry_Int_Tables_number   1
_cell_volume   285.671
_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  0.274  0.684  0.100  1.0
  Mn  Mn1  1  0.226  0.816  0.600  1.0
  Mn  Mn2  1  0.726  0.316  0.900  1.0
  Mn  Mn3  1  0.774  0.184  0.400  1.0
  Mn  Mn4  1  0.271  0.066  0.118  1.0
  Mn  Mn5  1  0.229  0.434  0.618  1.0
  Mn  Mn6  1  0.729  0.935  0.882  1.0
  Mn  Mn7  1  0.771  0.565  0.382  1.0
  B  B8  1  0.297  0.371  0.168  1.0
  B  B9  1  0.203  0.129  0.668  1.0
  B  B10  1  0.703  0.629  0.832  1.0
  B  B11  1  0.797  0.871  0.332  1.0
  O  O12  1  0.785  0.387  0.484  1.0
  O  O13  1  0.268  0.130  0.526  1.0
  O  O14  1  0.768  0.630  0.974  1.0
  O  O15  1  0.732  0.870  0.474  1.0
  O  O16  1  0.715  0.113  0.984  1.0
  O  O17  1  0.232  0.370  0.026  1.0
  O  O18  1  0.285  0.887  0.016  1.0
  O  O19  1  0.215  0.613  0.516  1.0
  O  O20  1  0.842  0.001  0.261  1.0
  O  O21  1  0.658  0.499  0.761  1.0
  O  O22  1  0.316  0.241  0.241  1.0
  O  O23  1  0.342  0.500  0.239  1.0
  O  O24  1  0.816  0.741  0.259  1.0
  O  O25  1  0.684  0.759  0.759  1.0
  O  O26  1  0.184  0.259  0.741  1.0
  O  O27  1  0.158  1.000  0.739  1.0
[/CIF]
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The structure described by Mn2OBO3 crystallizes in the monoclinic P2_1/c space group. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(3), two equivalent O(2), and two equivalent O(4) atoms to form a mixture of corner and edge-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles range from 53-67°. In the second Mn site, Mn(2) is bonded to one O(4), two equivalent O(3), and three equivalent O(1) atoms to form a mixture of distorted corner and edge-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles range from 53-67°. B(1) is bonded in a trigonal planar geometry to one O(2), one O(3), and one O(4) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded to one Mn(1) and three equivalent Mn(2) atoms to form a mixture of distorted corner and edge-sharing OMn4 tetrahedra. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to two equivalent Mn(1) and one B(1) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Mn(1), two equivalent Mn(2), and one B(1) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Mn(2), two equivalent Mn(1), and one B(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Mn2BO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.246
_cell_length_b   9.325
_cell_length_c   9.440
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.460
_symmetry_Int_Tables_number   1
_cell_volume   285.671
_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  0.274  0.684  0.100  1.0
  Mn  Mn1  1  0.226  0.816  0.600  1.0
  Mn  Mn2  1  0.726  0.316  0.900  1.0
  Mn  Mn3  1  0.774  0.184  0.400  1.0
  Mn  Mn4  1  0.271  0.066  0.118  1.0
  Mn  Mn5  1  0.229  0.434  0.618  1.0
  Mn  Mn6  1  0.729  0.935  0.882  1.0
  Mn  Mn7  1  0.771  0.565  0.382  1.0
  B  B8  1  0.297  0.371  0.168  1.0
  B  B9  1  0.203  0.129  0.668  1.0
  B  B10  1  0.703  0.629  0.832  1.0
  B  B11  1  0.797  0.871  0.332  1.0
  O  O12  1  0.785  0.387  0.484  1.0
  O  O13  1  0.268  0.130  0.526  1.0
  O  O14  1  0.768  0.630  0.974  1.0
  O  O15  1  0.732  0.870  0.474  1.0
  O  O16  1  0.715  0.113  0.984  1.0
  O  O17  1  0.232  0.370  0.026  1.0
  O  O18  1  0.285  0.887  0.016  1.0
  O  O19  1  0.215  0.613  0.516  1.0
  O  O20  1  0.842  0.001  0.261  1.0
  O  O21  1  0.658  0.499  0.761  1.0
  O  O22  1  0.316  0.241  0.241  1.0
  O  O23  1  0.342  0.500  0.239  1.0
  O  O24  1  0.816  0.741  0.259  1.0
  O  O25  1  0.684  0.759  0.759  1.0
  O  O26  1  0.184  0.259  0.741  1.0
  O  O27  1  0.158  1.000  0.739  1.0
[/CIF]
.