The material described by MgSm4Ti2Mn2O12 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(1), one O(10), one O(11), one O(2), and one O(8) atom to form distorted MgO5 trigonal bipyramids that share  a cornercorner with one Ti(2)O6 octahedra, corners with two equivalent Mn(1)O6 octahedra,  an edgeedge with one Ti(1)O6 octahedra, and  an edgeedge with one Ti(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 14-52°. There are four inequivalent Sm sites. In the first Sm site, Sm(1) is bonded in a 8-coordinate geometry to one O(1), one O(10), one O(11), 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 8-coordinate geometry to one O(1), one O(10), one O(12), one O(2), one O(6), one O(7), one O(8), and one O(9) atom. In the third Sm site, Sm(3) is bonded in a 8-coordinate geometry to one O(11), one O(12), one O(3), one O(4), one O(5), one O(6), one O(7), and one O(9) atom. In the fourth Sm site, Sm(4) is bonded in a 8-coordinate geometry to one O(10), one O(11), one O(12), one O(3), one O(4), one O(5), one O(6), and one O(8) 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)O6 octahedra and  an edgeedge with one Mg(1)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 35-49°. 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 corners with two equivalent Mn(1)O6 octahedra,  a cornercorner with one Mg(1)O5 trigonal bipyramid, and  an edgeedge with one Mg(1)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles are 44°. 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(3), one O(5), and one O(7) atom to form distorted MnO6 octahedra that share corners with two equivalent Ti(2)O6 octahedra, corners with four equivalent Ti(1)O6 octahedra, and corners with two equivalent Mg(1)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 35-49°. In the second Mn site, Mn(2) is bonded in a 4-coordinate geometry to one O(11), one O(4), one O(6), and one O(9) atom. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to one Mg(1), one Sm(1), one Sm(2), one Ti(2), and one Mn(1) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Mg(1), one Sm(1), one Sm(2), and one Ti(1) atom. In the third O site, O(3) is bonded to one Sm(3), one Sm(4), one Ti(2), and one Mn(1) atom to form distorted OSm2TiMn trigonal pyramids that share corners with two equivalent O(4)Sm2TiMn tetrahedra,  a cornercorner with one O(12)Sm3TiMn trigonal bipyramid,  an edgeedge with one O(8)Sm3MgTi trigonal bipyramid, and  an edgeedge with one O(12)Sm3TiMn trigonal bipyramid. In the fourth O site, O(4) is bonded to one Sm(3), one Sm(4), one Ti(1), and one Mn(2) atom to form OSm2TiMn tetrahedra that share  a cornercorner with one O(8)Sm3MgTi trigonal bipyramid, corners with three equivalent O(12)Sm3TiMn trigonal bipyramids, and corners with two equivalent O(3)Sm2TiMn trigonal pyramids. 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 5-coordinate geometry to one Sm(2), one Sm(3), one Sm(4), one Ti(2), and one Mn(2) atom. In the seventh O site, O(7) is bonded in a 4-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 to one Mg(1), one Sm(1), one Sm(2), one Sm(4), and one Ti(2) atom to form distorted OSm3MgTi trigonal bipyramids that share  a cornercorner with one O(4)Sm2TiMn tetrahedra, corners with two equivalent O(12)Sm3TiMn trigonal bipyramids, and  an edgeedge with one O(3)Sm2TiMn trigonal pyramid. In the ninth O site, O(9) is bonded in a 5-coordinate geometry to one Sm(1), one Sm(2), one Sm(3), one Ti(2), and one Mn(2) atom. In the tenth O site, O(10) is bonded in a 6-coordinate geometry to one Mg(1), 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 5-coordinate geometry to one Mg(1), one Sm(1), 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 OSm3TiMn trigonal bipyramids that share corners with three equivalent O(4)Sm2TiMn tetrahedra, corners with two equivalent O(8)Sm3MgTi trigonal bipyramids,  a cornercorner with one O(3)Sm2TiMn trigonal pyramid, and  an edgeedge with one O(3)Sm2TiMn trigonal pyramid. is represented by the CIF file [CIF]
data_Sm4MgTi2Mn2O12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.571
_cell_length_b   6.163
_cell_length_c   7.812
_cell_angle_alpha   88.479
_cell_angle_beta   90.540
_cell_angle_gamma   85.950
_symmetry_Int_Tables_number   1
_cell_volume   267.450
_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  0.048  0.945  0.737  1.0
  Sm  Sm1  1  0.445  0.386  0.730  1.0
  Sm  Sm2  1  0.947  0.097  0.244  1.0
  Sm  Sm3  1  0.493  0.590  0.235  1.0
  Mg  Mg4  1  0.580  0.783  0.832  1.0
  Ti  Ti5  1  0.507  0.011  0.477  1.0
  Ti  Ti6  1  0.989  0.512  0.995  1.0
  Mn  Mn7  1  0.962  0.511  0.494  1.0
  Mn  Mn8  1  0.473  0.091  0.069  1.0
  O  O9  1  0.846  0.575  0.756  1.0
  O  O10  1  0.641  0.056  0.724  1.0
  O  O11  1  0.108  0.461  0.232  1.0
  O  O12  1  0.326  0.940  0.268  1.0
  O  O13  1  0.803  0.835  0.433  1.0
  O  O14  1  0.689  0.340  0.049  1.0
  O  O15  1  0.196  0.201  0.551  1.0
  O  O16  1  0.289  0.675  0.936  1.0
  O  O17  1  0.173  0.208  0.926  1.0
  O  O18  1  0.355  0.732  0.589  1.0
  O  O19  1  0.766  0.822  0.051  1.0
  O  O20  1  0.664  0.313  0.430  1.0
[/CIF]
.
The material described by MgSm4Ti2Mn2O12 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(1), one O(10), one O(11), one O(2), and one O(8) atom to form distorted MgO5 trigonal bipyramids that share  a cornercorner with one Ti(2)O6 octahedra, corners with two equivalent Mn(1)O6 octahedra,  an edgeedge with one Ti(1)O6 octahedra, and  an edgeedge with one Ti(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 14-52°. There are four inequivalent Sm sites. In the first Sm site, Sm(1) is bonded in a 8-coordinate geometry to one O(1), one O(10), one O(11), 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 8-coordinate geometry to one O(1), one O(10), one O(12), one O(2), one O(6), one O(7), one O(8), and one O(9) atom. In the third Sm site, Sm(3) is bonded in a 8-coordinate geometry to one O(11), one O(12), one O(3), one O(4), one O(5), one O(6), one O(7), and one O(9) atom. In the fourth Sm site, Sm(4) is bonded in a 8-coordinate geometry to one O(10), one O(11), one O(12), one O(3), one O(4), one O(5), one O(6), and one O(8) 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)O6 octahedra and  an edgeedge with one Mg(1)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 35-49°. 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 corners with two equivalent Mn(1)O6 octahedra,  a cornercorner with one Mg(1)O5 trigonal bipyramid, and  an edgeedge with one Mg(1)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles are 44°. 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(3), one O(5), and one O(7) atom to form distorted MnO6 octahedra that share corners with two equivalent Ti(2)O6 octahedra, corners with four equivalent Ti(1)O6 octahedra, and corners with two equivalent Mg(1)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 35-49°. In the second Mn site, Mn(2) is bonded in a 4-coordinate geometry to one O(11), one O(4), one O(6), and one O(9) atom. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to one Mg(1), one Sm(1), one Sm(2), one Ti(2), and one Mn(1) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Mg(1), one Sm(1), one Sm(2), and one Ti(1) atom. In the third O site, O(3) is bonded to one Sm(3), one Sm(4), one Ti(2), and one Mn(1) atom to form distorted OSm2TiMn trigonal pyramids that share corners with two equivalent O(4)Sm2TiMn tetrahedra,  a cornercorner with one O(12)Sm3TiMn trigonal bipyramid,  an edgeedge with one O(8)Sm3MgTi trigonal bipyramid, and  an edgeedge with one O(12)Sm3TiMn trigonal bipyramid. In the fourth O site, O(4) is bonded to one Sm(3), one Sm(4), one Ti(1), and one Mn(2) atom to form OSm2TiMn tetrahedra that share  a cornercorner with one O(8)Sm3MgTi trigonal bipyramid, corners with three equivalent O(12)Sm3TiMn trigonal bipyramids, and corners with two equivalent O(3)Sm2TiMn trigonal pyramids. 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 5-coordinate geometry to one Sm(2), one Sm(3), one Sm(4), one Ti(2), and one Mn(2) atom. In the seventh O site, O(7) is bonded in a 4-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 to one Mg(1), one Sm(1), one Sm(2), one Sm(4), and one Ti(2) atom to form distorted OSm3MgTi trigonal bipyramids that share  a cornercorner with one O(4)Sm2TiMn tetrahedra, corners with two equivalent O(12)Sm3TiMn trigonal bipyramids, and  an edgeedge with one O(3)Sm2TiMn trigonal pyramid. In the ninth O site, O(9) is bonded in a 5-coordinate geometry to one Sm(1), one Sm(2), one Sm(3), one Ti(2), and one Mn(2) atom. In the tenth O site, O(10) is bonded in a 6-coordinate geometry to one Mg(1), 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 5-coordinate geometry to one Mg(1), one Sm(1), 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 OSm3TiMn trigonal bipyramids that share corners with three equivalent O(4)Sm2TiMn tetrahedra, corners with two equivalent O(8)Sm3MgTi trigonal bipyramids,  a cornercorner with one O(3)Sm2TiMn trigonal pyramid, and  an edgeedge with one O(3)Sm2TiMn trigonal pyramid. is represented by the CIF file [CIF]
data_Sm4MgTi2Mn2O12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.571
_cell_length_b   6.163
_cell_length_c   7.812
_cell_angle_alpha   88.479
_cell_angle_beta   90.540
_cell_angle_gamma   85.950
_symmetry_Int_Tables_number   1
_cell_volume   267.450
_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  0.048  0.945  0.737  1.0
  Sm  Sm1  1  0.445  0.386  0.730  1.0
  Sm  Sm2  1  0.947  0.097  0.244  1.0
  Sm  Sm3  1  0.493  0.590  0.235  1.0
  Mg  Mg4  1  0.580  0.783  0.832  1.0
  Ti  Ti5  1  0.507  0.011  0.477  1.0
  Ti  Ti6  1  0.989  0.512  0.995  1.0
  Mn  Mn7  1  0.962  0.511  0.494  1.0
  Mn  Mn8  1  0.473  0.091  0.069  1.0
  O  O9  1  0.846  0.575  0.756  1.0
  O  O10  1  0.641  0.056  0.724  1.0
  O  O11  1  0.108  0.461  0.232  1.0
  O  O12  1  0.326  0.940  0.268  1.0
  O  O13  1  0.803  0.835  0.433  1.0
  O  O14  1  0.689  0.340  0.049  1.0
  O  O15  1  0.196  0.201  0.551  1.0
  O  O16  1  0.289  0.675  0.936  1.0
  O  O17  1  0.173  0.208  0.926  1.0
  O  O18  1  0.355  0.732  0.589  1.0
  O  O19  1  0.766  0.822  0.051  1.0
  O  O20  1  0.664  0.313  0.430  1.0
[/CIF]
.