The compound described by MgMn2(SbO3)4 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(12), one O(2), one O(4), one O(5), one O(6), and one O(9) atom to form MgO6 octahedra that share corners with two equivalent Sb(4)O6 octahedra,  a cornercorner with one Mn(1)O5 trigonal bipyramid,  a cornercorner with one Mn(2)O5 trigonal bipyramid,  an edgeedge with one Sb(1)O6 octahedra,  an edgeedge with one Sb(3)O6 octahedra, edges with two equivalent Sb(2)O6 octahedra,  an edgeedge with one Mn(1)O5 trigonal bipyramid, and  an edgeedge with one Mn(2)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 48-49°. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(12), one O(3), one O(4), and one O(5) atom to form distorted MnO5 trigonal bipyramids that share  a cornercorner with one Mg(1)O6 octahedra, corners with two equivalent Sb(1)O6 octahedra, corners with two equivalent Sb(2)O6 octahedra, corners with two equivalent Sb(3)O6 octahedra,  an edgeedge with one Mg(1)O6 octahedra,  an edgeedge with one Sb(4)O6 octahedra, and  an edgeedge with one Mn(2)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 49-58°. In the second Mn site, Mn(2) is bonded to one O(4), one O(5), one O(7), one O(8), and one O(9) atom to form distorted MnO5 trigonal bipyramids that share  a cornercorner with one Mg(1)O6 octahedra, corners with two equivalent Sb(1)O6 octahedra, corners with two equivalent Sb(2)O6 octahedra, corners with two equivalent Sb(3)O6 octahedra,  an edgeedge with one Mg(1)O6 octahedra,  an edgeedge with one Sb(4)O6 octahedra, and  an edgeedge with one Mn(1)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 49-57°. There are four inequivalent Sb sites. In the first Sb site, Sb(1) is bonded to one O(10), one O(11), one O(2), one O(3), one O(4), and one O(8) atom to form SbO6 octahedra that share corners with three equivalent Sb(4)O6 octahedra, corners with two equivalent Mn(1)O5 trigonal bipyramids, corners with two equivalent Mn(2)O5 trigonal bipyramids,  an edgeedge with one Mg(1)O6 octahedra,  an edgeedge with one Sb(2)O6 octahedra, and  an edgeedge with one Sb(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 48-52°. In the second Sb site, Sb(2) is bonded to one O(12), one O(2), one O(3), one O(6), one O(7), and one O(9) atom to form SbO6 octahedra that share corners with two equivalent Sb(4)O6 octahedra, corners with two equivalent Mn(1)O5 trigonal bipyramids, corners with two equivalent Mn(2)O5 trigonal bipyramids,  an edgeedge with one Sb(1)O6 octahedra,  an edgeedge with one Sb(3)O6 octahedra, and edges with two equivalent Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 57-58°. In the third Sb site, Sb(3) is bonded to one O(1), one O(10), one O(11), one O(5), one O(6), and one O(7) atom to form SbO6 octahedra that share corners with three equivalent Sb(4)O6 octahedra, corners with two equivalent Mn(1)O5 trigonal bipyramids, corners with two equivalent Mn(2)O5 trigonal bipyramids,  an edgeedge with one Mg(1)O6 octahedra,  an edgeedge with one Sb(1)O6 octahedra, and  an edgeedge with one Sb(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 50-51°. In the fourth Sb site, Sb(4) is bonded to one O(1), one O(10), one O(11), one O(12), one O(8), and one O(9) atom to form distorted SbO6 octahedra that share corners with two equivalent Mg(1)O6 octahedra, corners with two equivalent Sb(2)O6 octahedra, corners with three equivalent Sb(1)O6 octahedra, corners with three equivalent Sb(3)O6 octahedra,  an edgeedge with one Mn(1)O5 trigonal bipyramid, and  an edgeedge with one Mn(2)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 48-58°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Mn(1), one Sb(3), and one Sb(4) atom. In the second O site, O(2) is bonded in a distorted trigonal non-coplanar geometry to one Mg(1), one Sb(1), and one Sb(2) atom. In the third O site, O(3) is bonded in a trigonal planar geometry to one Mn(1), one Sb(1), and one Sb(2) atom. In the fourth O site, O(4) is bonded to one Mg(1), one Mn(1), one Mn(2), and one Sb(1) atom to form OMgMn2Sb trigonal pyramids that share  a cornercorner with one O(5)MgMn2Sb trigonal pyramid, corners with two equivalent O(12)MgMnSb2 trigonal pyramids,  an edgeedge with one O(5)MgMn2Sb trigonal pyramid, and  an edgeedge with one O(9)MgMnSb2 trigonal pyramid. In the fifth O site, O(5) is bonded to one Mg(1), one Mn(1), one Mn(2), and one Sb(3) atom to form OMgMn2Sb trigonal pyramids that share  a cornercorner with one O(4)MgMn2Sb trigonal pyramid, corners with two equivalent O(9)MgMnSb2 trigonal pyramids,  an edgeedge with one O(4)MgMn2Sb trigonal pyramid, and  an edgeedge with one O(12)MgMnSb2 trigonal pyramid. In the sixth O site, O(6) is bonded in a distorted trigonal non-coplanar geometry to one Mg(1), one Sb(2), and one Sb(3) atom. In the seventh O site, O(7) is bonded in a trigonal planar geometry to one Mn(2), one Sb(2), and one Sb(3) atom. In the eighth O site, O(8) is bonded in a trigonal planar geometry to one Mn(2), one Sb(1), and one Sb(4) atom. In the ninth O site, O(9) is bonded to one Mg(1), one Mn(2), one Sb(2), and one Sb(4) atom to form distorted OMgMnSb2 trigonal pyramids that share corners with two equivalent O(5)MgMn2Sb trigonal pyramids, corners with three equivalent O(12)MgMnSb2 trigonal pyramids, and  an edgeedge with one O(4)MgMn2Sb trigonal pyramid. In the tenth O site, O(10) is bonded in a distorted trigonal planar geometry to one Sb(1), one Sb(3), and one Sb(4) atom. In the eleventh O site, O(11) is bonded in a distorted water-like geometry to one Sb(1), one Sb(3), and one Sb(4) atom. In the twelfth O site, O(12) is bonded to one Mg(1), one Mn(1), one Sb(2), and one Sb(4) atom to form distorted OMgMnSb2 trigonal pyramids that share corners with two equivalent O(4)MgMn2Sb trigonal pyramids, corners with three equivalent O(9)MgMnSb2 trigonal pyramids, and  an edgeedge with one O(5)MgMn2Sb trigonal pyramid. is represented by the CIF file [CIF]
data_MgMn2(SbO3)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.469
_cell_length_b   6.008
_cell_length_c   6.143
_cell_angle_alpha   79.402
_cell_angle_beta   58.834
_cell_angle_gamma   57.485
_symmetry_Int_Tables_number   1
_cell_volume   249.995
_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
  Mg  Mg0  1  0.325  0.002  0.500  1.0
  Mn  Mn1  1  0.160  0.587  0.453  1.0
  Mn  Mn2  1  0.498  0.415  0.548  1.0
  Sb  Sb3  1  0.991  0.002  0.005  1.0
  Sb  Sb4  1  0.329  0.001  0.998  1.0
  Sb  Sb5  1  0.665  0.996  0.999  1.0
  Sb  Sb6  1  0.829  0.512  0.487  1.0
  O  O7  1  0.863  0.727  0.690  1.0
  O  O8  1  0.141  0.203  0.862  1.0
  O  O9  1  0.177  0.812  0.147  1.0
  O  O10  1  0.203  0.763  0.666  1.0
  O  O11  1  0.453  0.236  0.337  1.0
  O  O12  1  0.513  0.798  0.139  1.0
  O  O13  1  0.483  0.187  0.850  1.0
  O  O14  1  0.796  0.271  0.313  1.0
  O  O15  1  0.505  0.755  0.667  1.0
  O  O16  1  0.848  0.798  0.155  1.0
  O  O17  1  0.808  0.193  0.859  1.0
  O  O18  1  0.151  0.252  0.326  1.0
[/CIF]
.
The compound described by MgMn2(SbO3)4 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(12), one O(2), one O(4), one O(5), one O(6), and one O(9) atom to form MgO6 octahedra that share corners with two equivalent Sb(4)O6 octahedra,  a cornercorner with one Mn(1)O5 trigonal bipyramid,  a cornercorner with one Mn(2)O5 trigonal bipyramid,  an edgeedge with one Sb(1)O6 octahedra,  an edgeedge with one Sb(3)O6 octahedra, edges with two equivalent Sb(2)O6 octahedra,  an edgeedge with one Mn(1)O5 trigonal bipyramid, and  an edgeedge with one Mn(2)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 48-49°. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(12), one O(3), one O(4), and one O(5) atom to form distorted MnO5 trigonal bipyramids that share  a cornercorner with one Mg(1)O6 octahedra, corners with two equivalent Sb(1)O6 octahedra, corners with two equivalent Sb(2)O6 octahedra, corners with two equivalent Sb(3)O6 octahedra,  an edgeedge with one Mg(1)O6 octahedra,  an edgeedge with one Sb(4)O6 octahedra, and  an edgeedge with one Mn(2)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 49-58°. In the second Mn site, Mn(2) is bonded to one O(4), one O(5), one O(7), one O(8), and one O(9) atom to form distorted MnO5 trigonal bipyramids that share  a cornercorner with one Mg(1)O6 octahedra, corners with two equivalent Sb(1)O6 octahedra, corners with two equivalent Sb(2)O6 octahedra, corners with two equivalent Sb(3)O6 octahedra,  an edgeedge with one Mg(1)O6 octahedra,  an edgeedge with one Sb(4)O6 octahedra, and  an edgeedge with one Mn(1)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 49-57°. There are four inequivalent Sb sites. In the first Sb site, Sb(1) is bonded to one O(10), one O(11), one O(2), one O(3), one O(4), and one O(8) atom to form SbO6 octahedra that share corners with three equivalent Sb(4)O6 octahedra, corners with two equivalent Mn(1)O5 trigonal bipyramids, corners with two equivalent Mn(2)O5 trigonal bipyramids,  an edgeedge with one Mg(1)O6 octahedra,  an edgeedge with one Sb(2)O6 octahedra, and  an edgeedge with one Sb(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 48-52°. In the second Sb site, Sb(2) is bonded to one O(12), one O(2), one O(3), one O(6), one O(7), and one O(9) atom to form SbO6 octahedra that share corners with two equivalent Sb(4)O6 octahedra, corners with two equivalent Mn(1)O5 trigonal bipyramids, corners with two equivalent Mn(2)O5 trigonal bipyramids,  an edgeedge with one Sb(1)O6 octahedra,  an edgeedge with one Sb(3)O6 octahedra, and edges with two equivalent Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 57-58°. In the third Sb site, Sb(3) is bonded to one O(1), one O(10), one O(11), one O(5), one O(6), and one O(7) atom to form SbO6 octahedra that share corners with three equivalent Sb(4)O6 octahedra, corners with two equivalent Mn(1)O5 trigonal bipyramids, corners with two equivalent Mn(2)O5 trigonal bipyramids,  an edgeedge with one Mg(1)O6 octahedra,  an edgeedge with one Sb(1)O6 octahedra, and  an edgeedge with one Sb(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 50-51°. In the fourth Sb site, Sb(4) is bonded to one O(1), one O(10), one O(11), one O(12), one O(8), and one O(9) atom to form distorted SbO6 octahedra that share corners with two equivalent Mg(1)O6 octahedra, corners with two equivalent Sb(2)O6 octahedra, corners with three equivalent Sb(1)O6 octahedra, corners with three equivalent Sb(3)O6 octahedra,  an edgeedge with one Mn(1)O5 trigonal bipyramid, and  an edgeedge with one Mn(2)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 48-58°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Mn(1), one Sb(3), and one Sb(4) atom. In the second O site, O(2) is bonded in a distorted trigonal non-coplanar geometry to one Mg(1), one Sb(1), and one Sb(2) atom. In the third O site, O(3) is bonded in a trigonal planar geometry to one Mn(1), one Sb(1), and one Sb(2) atom. In the fourth O site, O(4) is bonded to one Mg(1), one Mn(1), one Mn(2), and one Sb(1) atom to form OMgMn2Sb trigonal pyramids that share  a cornercorner with one O(5)MgMn2Sb trigonal pyramid, corners with two equivalent O(12)MgMnSb2 trigonal pyramids,  an edgeedge with one O(5)MgMn2Sb trigonal pyramid, and  an edgeedge with one O(9)MgMnSb2 trigonal pyramid. In the fifth O site, O(5) is bonded to one Mg(1), one Mn(1), one Mn(2), and one Sb(3) atom to form OMgMn2Sb trigonal pyramids that share  a cornercorner with one O(4)MgMn2Sb trigonal pyramid, corners with two equivalent O(9)MgMnSb2 trigonal pyramids,  an edgeedge with one O(4)MgMn2Sb trigonal pyramid, and  an edgeedge with one O(12)MgMnSb2 trigonal pyramid. In the sixth O site, O(6) is bonded in a distorted trigonal non-coplanar geometry to one Mg(1), one Sb(2), and one Sb(3) atom. In the seventh O site, O(7) is bonded in a trigonal planar geometry to one Mn(2), one Sb(2), and one Sb(3) atom. In the eighth O site, O(8) is bonded in a trigonal planar geometry to one Mn(2), one Sb(1), and one Sb(4) atom. In the ninth O site, O(9) is bonded to one Mg(1), one Mn(2), one Sb(2), and one Sb(4) atom to form distorted OMgMnSb2 trigonal pyramids that share corners with two equivalent O(5)MgMn2Sb trigonal pyramids, corners with three equivalent O(12)MgMnSb2 trigonal pyramids, and  an edgeedge with one O(4)MgMn2Sb trigonal pyramid. In the tenth O site, O(10) is bonded in a distorted trigonal planar geometry to one Sb(1), one Sb(3), and one Sb(4) atom. In the eleventh O site, O(11) is bonded in a distorted water-like geometry to one Sb(1), one Sb(3), and one Sb(4) atom. In the twelfth O site, O(12) is bonded to one Mg(1), one Mn(1), one Sb(2), and one Sb(4) atom to form distorted OMgMnSb2 trigonal pyramids that share corners with two equivalent O(4)MgMn2Sb trigonal pyramids, corners with three equivalent O(9)MgMnSb2 trigonal pyramids, and  an edgeedge with one O(5)MgMn2Sb trigonal pyramid. is represented by the CIF file [CIF]
data_MgMn2(SbO3)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.469
_cell_length_b   6.008
_cell_length_c   6.143
_cell_angle_alpha   79.402
_cell_angle_beta   58.834
_cell_angle_gamma   57.485
_symmetry_Int_Tables_number   1
_cell_volume   249.995
_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
  Mg  Mg0  1  0.325  0.002  0.500  1.0
  Mn  Mn1  1  0.160  0.587  0.453  1.0
  Mn  Mn2  1  0.498  0.415  0.548  1.0
  Sb  Sb3  1  0.991  0.002  0.005  1.0
  Sb  Sb4  1  0.329  0.001  0.998  1.0
  Sb  Sb5  1  0.665  0.996  0.999  1.0
  Sb  Sb6  1  0.829  0.512  0.487  1.0
  O  O7  1  0.863  0.727  0.690  1.0
  O  O8  1  0.141  0.203  0.862  1.0
  O  O9  1  0.177  0.812  0.147  1.0
  O  O10  1  0.203  0.763  0.666  1.0
  O  O11  1  0.453  0.236  0.337  1.0
  O  O12  1  0.513  0.798  0.139  1.0
  O  O13  1  0.483  0.187  0.850  1.0
  O  O14  1  0.796  0.271  0.313  1.0
  O  O15  1  0.505  0.755  0.667  1.0
  O  O16  1  0.848  0.798  0.155  1.0
  O  O17  1  0.808  0.193  0.859  1.0
  O  O18  1  0.151  0.252  0.326  1.0
[/CIF]
.