The material structure described by MgSm4Ti2Mn2O12 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(3), one O(4), one O(6), and one O(9) atom to form MgO4 trigonal pyramids that share  a cornercorner with one Ti(1)O6 octahedra,  a cornercorner with one Ti(2)O6 octahedra, and  an edgeedge with one Ti(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 21-54°. There are four inequivalent Sm sites. In the first Sm site, Sm(1) is bonded in a 7-coordinate geometry to one O(1), one O(10), one O(2), one O(5), one O(7), one O(8), and one O(9) atom. In the second Sm site, Sm(2) is bonded in a 7-coordinate geometry to one O(1), one O(10), one O(12), one O(2), one O(7), one O(8), and one O(9) atom. In the third Sm site, Sm(3) is bonded in a 7-coordinate geometry to one O(11), one O(12), one O(3), one O(4), one O(5), one O(6), and one O(7) atom. In the fourth Sm site, Sm(4) is bonded in a 7-coordinate geometry to one O(10), one O(11), one O(12), one O(3), one O(4), one O(5), and one O(6) atom. There are two inequivalent Ti sites. In the first Ti site, Ti(1) is bonded to one O(10), one O(12), one O(2), one O(4), one O(5), and one O(7) atom to form TiO6 octahedra that share corners with four equivalent Mn(1)O5 square pyramids,  a cornercorner with one Mg(1)O4 trigonal pyramid, and  a cornercorner with one Mn(2)O4 trigonal pyramid. In the second Ti site, Ti(2) is bonded to one O(1), one O(11), one O(3), one O(6), one O(8), and one O(9) atom to form TiO6 octahedra that share  a cornercorner with one Mn(1)O5 square pyramid,  a cornercorner with one Mg(1)O4 trigonal pyramid,  a cornercorner with one Mn(2)O4 trigonal pyramid,  an edgeedge with one Mg(1)O4 trigonal pyramid, and  an edgeedge with one Mn(2)O4 trigonal pyramid. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(10), one O(12), one O(5), and one O(7) atom to form MnO5 square pyramids that share  a cornercorner with one Ti(2)O6 octahedra, corners with four equivalent Ti(1)O6 octahedra, and  a cornercorner with one Mn(2)O4 trigonal pyramid. The corner-sharing octahedral tilt angles range from 28-52°. In the second Mn site, Mn(2) is bonded to one O(1), one O(11), one O(2), and one O(8) atom to form distorted MnO4 trigonal pyramids that share  a cornercorner with one Ti(1)O6 octahedra,  a cornercorner with one Ti(2)O6 octahedra,  a cornercorner with one Mn(1)O5 square pyramid, and  an edgeedge with one Ti(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 24-56°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to one Sm(1), one Sm(2), one Ti(2), one Mn(1), and one Mn(2) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Sm(1), one Sm(2), one Ti(1), and one Mn(2) atom. In the third O site, O(3) is bonded to one Mg(1), one Sm(3), one Sm(4), and one Ti(2) atom to form distorted corner-sharing OSm2MgTi trigonal pyramids. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Mg(1), one Sm(3), one Sm(4), and one Ti(1) atom. In the fifth O site, O(5) is bonded in a 5-coordinate geometry to one Sm(1), one Sm(3), one Sm(4), one Ti(1), and one Mn(1) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Mg(1), one Sm(3), one Sm(4), and one Ti(2) atom. In the seventh O site, O(7) is bonded in a 5-coordinate geometry to one Sm(1), one Sm(2), one Sm(3), one Ti(1), and one Mn(1) atom. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one Sm(1), one Sm(2), one Ti(2), and one Mn(2) atom. In the ninth O site, O(9) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), one Sm(1), one Sm(2), and one Ti(2) atom. In the tenth O site, O(10) is bonded in a 5-coordinate geometry to one Sm(1), one Sm(2), one Sm(4), one Ti(1), and one Mn(1) atom. In the eleventh O site, O(11) is bonded in a distorted rectangular see-saw-like geometry to one Sm(3), one Sm(4), one Ti(2), and one Mn(2) atom. In the twelfth O site, O(12) is bonded to one Sm(2), one Sm(3), one Sm(4), one Ti(1), and one Mn(1) atom to form distorted corner-sharing OSm3TiMn trigonal bipyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sm4MgTi2Mn2O12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.478
_cell_length_b   5.977
_cell_length_c   8.357
_cell_angle_alpha   89.007
_cell_angle_beta   90.635
_cell_angle_gamma   88.296
_symmetry_Int_Tables_number   1
_cell_volume   273.466
_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
  Sm  Sm0  1  0.050  0.946  0.736  1.0
  Sm  Sm1  1  0.455  0.418  0.730  1.0
  Sm  Sm2  1  0.944  0.091  0.284  1.0
  Sm  Sm3  1  0.522  0.611  0.284  1.0
  Mg  Mg4  1  0.398  0.194  0.099  1.0
  Ti  Ti5  1  0.493  0.013  0.508  1.0
  Ti  Ti6  1  0.992  0.513  0.007  1.0
  Mn  Mn7  1  0.973  0.516  0.531  1.0
  Mn  Mn8  1  0.605  0.822  0.917  1.0
  O  O9  1  0.824  0.587  0.781  1.0
  O  O10  1  0.629  0.055  0.736  1.0
  O  O11  1  0.180  0.420  0.212  1.0
  O  O12  1  0.364  0.977  0.277  1.0
  O  O13  1  0.792  0.827  0.462  1.0
  O  O14  1  0.713  0.337  0.094  1.0
  O  O15  1  0.188  0.206  0.554  1.0
  O  O16  1  0.270  0.689  0.917  1.0
  O  O17  1  0.185  0.224  0.909  1.0
  O  O18  1  0.303  0.712  0.558  1.0
  O  O19  1  0.819  0.796  0.115  1.0
  O  O20  1  0.676  0.317  0.454  1.0
[/CIF]
.
The material structure described by MgSm4Ti2Mn2O12 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(3), one O(4), one O(6), and one O(9) atom to form MgO4 trigonal pyramids that share  a cornercorner with one Ti(1)O6 octahedra,  a cornercorner with one Ti(2)O6 octahedra, and  an edgeedge with one Ti(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 21-54°. There are four inequivalent Sm sites. In the first Sm site, Sm(1) is bonded in a 7-coordinate geometry to one O(1), one O(10), one O(2), one O(5), one O(7), one O(8), and one O(9) atom. In the second Sm site, Sm(2) is bonded in a 7-coordinate geometry to one O(1), one O(10), one O(12), one O(2), one O(7), one O(8), and one O(9) atom. In the third Sm site, Sm(3) is bonded in a 7-coordinate geometry to one O(11), one O(12), one O(3), one O(4), one O(5), one O(6), and one O(7) atom. In the fourth Sm site, Sm(4) is bonded in a 7-coordinate geometry to one O(10), one O(11), one O(12), one O(3), one O(4), one O(5), and one O(6) atom. There are two inequivalent Ti sites. In the first Ti site, Ti(1) is bonded to one O(10), one O(12), one O(2), one O(4), one O(5), and one O(7) atom to form TiO6 octahedra that share corners with four equivalent Mn(1)O5 square pyramids,  a cornercorner with one Mg(1)O4 trigonal pyramid, and  a cornercorner with one Mn(2)O4 trigonal pyramid. In the second Ti site, Ti(2) is bonded to one O(1), one O(11), one O(3), one O(6), one O(8), and one O(9) atom to form TiO6 octahedra that share  a cornercorner with one Mn(1)O5 square pyramid,  a cornercorner with one Mg(1)O4 trigonal pyramid,  a cornercorner with one Mn(2)O4 trigonal pyramid,  an edgeedge with one Mg(1)O4 trigonal pyramid, and  an edgeedge with one Mn(2)O4 trigonal pyramid. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(10), one O(12), one O(5), and one O(7) atom to form MnO5 square pyramids that share  a cornercorner with one Ti(2)O6 octahedra, corners with four equivalent Ti(1)O6 octahedra, and  a cornercorner with one Mn(2)O4 trigonal pyramid. The corner-sharing octahedral tilt angles range from 28-52°. In the second Mn site, Mn(2) is bonded to one O(1), one O(11), one O(2), and one O(8) atom to form distorted MnO4 trigonal pyramids that share  a cornercorner with one Ti(1)O6 octahedra,  a cornercorner with one Ti(2)O6 octahedra,  a cornercorner with one Mn(1)O5 square pyramid, and  an edgeedge with one Ti(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 24-56°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to one Sm(1), one Sm(2), one Ti(2), one Mn(1), and one Mn(2) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Sm(1), one Sm(2), one Ti(1), and one Mn(2) atom. In the third O site, O(3) is bonded to one Mg(1), one Sm(3), one Sm(4), and one Ti(2) atom to form distorted corner-sharing OSm2MgTi trigonal pyramids. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Mg(1), one Sm(3), one Sm(4), and one Ti(1) atom. In the fifth O site, O(5) is bonded in a 5-coordinate geometry to one Sm(1), one Sm(3), one Sm(4), one Ti(1), and one Mn(1) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Mg(1), one Sm(3), one Sm(4), and one Ti(2) atom. In the seventh O site, O(7) is bonded in a 5-coordinate geometry to one Sm(1), one Sm(2), one Sm(3), one Ti(1), and one Mn(1) atom. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one Sm(1), one Sm(2), one Ti(2), and one Mn(2) atom. In the ninth O site, O(9) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), one Sm(1), one Sm(2), and one Ti(2) atom. In the tenth O site, O(10) is bonded in a 5-coordinate geometry to one Sm(1), one Sm(2), one Sm(4), one Ti(1), and one Mn(1) atom. In the eleventh O site, O(11) is bonded in a distorted rectangular see-saw-like geometry to one Sm(3), one Sm(4), one Ti(2), and one Mn(2) atom. In the twelfth O site, O(12) is bonded to one Sm(2), one Sm(3), one Sm(4), one Ti(1), and one Mn(1) atom to form distorted corner-sharing OSm3TiMn trigonal bipyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sm4MgTi2Mn2O12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.478
_cell_length_b   5.977
_cell_length_c   8.357
_cell_angle_alpha   89.007
_cell_angle_beta   90.635
_cell_angle_gamma   88.296
_symmetry_Int_Tables_number   1
_cell_volume   273.466
_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
  Sm  Sm0  1  0.050  0.946  0.736  1.0
  Sm  Sm1  1  0.455  0.418  0.730  1.0
  Sm  Sm2  1  0.944  0.091  0.284  1.0
  Sm  Sm3  1  0.522  0.611  0.284  1.0
  Mg  Mg4  1  0.398  0.194  0.099  1.0
  Ti  Ti5  1  0.493  0.013  0.508  1.0
  Ti  Ti6  1  0.992  0.513  0.007  1.0
  Mn  Mn7  1  0.973  0.516  0.531  1.0
  Mn  Mn8  1  0.605  0.822  0.917  1.0
  O  O9  1  0.824  0.587  0.781  1.0
  O  O10  1  0.629  0.055  0.736  1.0
  O  O11  1  0.180  0.420  0.212  1.0
  O  O12  1  0.364  0.977  0.277  1.0
  O  O13  1  0.792  0.827  0.462  1.0
  O  O14  1  0.713  0.337  0.094  1.0
  O  O15  1  0.188  0.206  0.554  1.0
  O  O16  1  0.270  0.689  0.917  1.0
  O  O17  1  0.185  0.224  0.909  1.0
  O  O18  1  0.303  0.712  0.558  1.0
  O  O19  1  0.819  0.796  0.115  1.0
  O  O20  1  0.676  0.317  0.454  1.0
[/CIF]
.