The material described by Sm2(SeO3)3 crystallizes in the triclinic P-1 space group. There are two inequivalent Sm sites. In the first Sm site, Sm(1) is bonded in a 9-coordinate geometry to one O(2), one O(3), one O(4), one O(5), one O(7), one O(8), one O(9), and two equivalent O(6) atoms. In the second Sm site, Sm(2) is bonded in a 8-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(7), one O(9), and two equivalent O(5) atoms. There are three inequivalent Se sites. In the first Se site, Se(1) is bonded in a trigonal non-coplanar geometry to one O(1), one O(4), and one O(6) atom. In the second Se site, Se(2) is bonded in a distorted trigonal non-coplanar geometry to one O(3), one O(5), and one O(7) atom. In the third Se site, Se(3) is bonded in a trigonal non-coplanar geometry to one O(2), one O(8), and one O(9) atom. There are nine inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one Sm(2) and one Se(1) atom. In the second O site, O(2) is bonded in a distorted trigonal non-coplanar geometry to one Sm(1), one Sm(2), and one Se(3) atom. In the third O site, O(3) is bonded in a distorted trigonal non-coplanar geometry to one Sm(1), one Sm(2), and one Se(2) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Sm(1), one Sm(2), and one Se(1) atom. In the fifth O site, O(5) is bonded to one Sm(1), two equivalent Sm(2), and one Se(2) atom to form distorted edge-sharing OSm3Se tetrahedra. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to two equivalent Sm(1) and one Se(1) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one Sm(1), one Sm(2), and one Se(2) atom. In the eighth O site, O(8) is bonded in a bent 150 degrees geometry to one Sm(1) and one Se(3) atom. In the ninth O site, O(9) is bonded in a distorted trigonal planar geometry to one Sm(1), one Sm(2), and one Se(3) atom. is represented by the CIF file [CIF]
data_Sm2(SeO3)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.985
_cell_length_b   7.892
_cell_length_c   9.079
_cell_angle_alpha   70.531
_cell_angle_beta   75.785
_cell_angle_gamma   64.029
_symmetry_Int_Tables_number   1
_cell_volume   421.282
_cell_formula_units_Z   2
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  0.628  0.350  0.322  1.0
  Sm  Sm1  1  0.372  0.650  0.678  1.0
  Sm  Sm2  1  0.226  0.312  0.129  1.0
  Sm  Sm3  1  0.774  0.688  0.871  1.0
  Se  Se4  1  0.454  0.174  0.743  1.0
  Se  Se5  1  0.189  0.768  0.039  1.0
  Se  Se6  1  0.871  0.779  0.488  1.0
  Se  Se7  1  0.811  0.232  0.961  1.0
  Se  Se8  1  0.546  0.826  0.257  1.0
  Se  Se9  1  0.129  0.221  0.512  1.0
  O  O10  1  0.675  0.021  0.836  1.0
  O  O11  1  0.325  0.979  0.164  1.0
  O  O12  1  0.639  0.791  0.616  1.0
  O  O13  1  0.361  0.209  0.384  1.0
  O  O14  1  0.391  0.786  0.894  1.0
  O  O15  1  0.318  0.337  0.856  1.0
  O  O16  1  0.901  0.342  0.053  1.0
  O  O17  1  0.540  0.334  0.592  1.0
  O  O18  1  0.698  0.437  0.820  1.0
  O  O19  1  0.099  0.658  0.947  1.0
  O  O20  1  0.166  0.988  0.588  1.0
  O  O21  1  0.031  0.684  0.639  1.0
  O  O22  1  0.609  0.214  0.106  1.0
  O  O23  1  0.682  0.663  0.144  1.0
  O  O24  1  0.460  0.666  0.408  1.0
  O  O25  1  0.302  0.563  0.180  1.0
  O  O26  1  0.834  0.012  0.412  1.0
  O  O27  1  0.969  0.316  0.361  1.0
[/CIF]
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The material described by Sm2(SeO3)3 crystallizes in the triclinic P-1 space group. There are two inequivalent Sm sites. In the first Sm site, Sm(1) is bonded in a 9-coordinate geometry to one O(2), one O(3), one O(4), one O(5), one O(7), one O(8), one O(9), and two equivalent O(6) atoms. In the second Sm site, Sm(2) is bonded in a 8-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(7), one O(9), and two equivalent O(5) atoms. There are three inequivalent Se sites. In the first Se site, Se(1) is bonded in a trigonal non-coplanar geometry to one O(1), one O(4), and one O(6) atom. In the second Se site, Se(2) is bonded in a distorted trigonal non-coplanar geometry to one O(3), one O(5), and one O(7) atom. In the third Se site, Se(3) is bonded in a trigonal non-coplanar geometry to one O(2), one O(8), and one O(9) atom. There are nine inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one Sm(2) and one Se(1) atom. In the second O site, O(2) is bonded in a distorted trigonal non-coplanar geometry to one Sm(1), one Sm(2), and one Se(3) atom. In the third O site, O(3) is bonded in a distorted trigonal non-coplanar geometry to one Sm(1), one Sm(2), and one Se(2) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Sm(1), one Sm(2), and one Se(1) atom. In the fifth O site, O(5) is bonded to one Sm(1), two equivalent Sm(2), and one Se(2) atom to form distorted edge-sharing OSm3Se tetrahedra. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to two equivalent Sm(1) and one Se(1) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one Sm(1), one Sm(2), and one Se(2) atom. In the eighth O site, O(8) is bonded in a bent 150 degrees geometry to one Sm(1) and one Se(3) atom. In the ninth O site, O(9) is bonded in a distorted trigonal planar geometry to one Sm(1), one Sm(2), and one Se(3) atom. is represented by the CIF file [CIF]
data_Sm2(SeO3)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.985
_cell_length_b   7.892
_cell_length_c   9.079
_cell_angle_alpha   70.531
_cell_angle_beta   75.785
_cell_angle_gamma   64.029
_symmetry_Int_Tables_number   1
_cell_volume   421.282
_cell_formula_units_Z   2
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  0.628  0.350  0.322  1.0
  Sm  Sm1  1  0.372  0.650  0.678  1.0
  Sm  Sm2  1  0.226  0.312  0.129  1.0
  Sm  Sm3  1  0.774  0.688  0.871  1.0
  Se  Se4  1  0.454  0.174  0.743  1.0
  Se  Se5  1  0.189  0.768  0.039  1.0
  Se  Se6  1  0.871  0.779  0.488  1.0
  Se  Se7  1  0.811  0.232  0.961  1.0
  Se  Se8  1  0.546  0.826  0.257  1.0
  Se  Se9  1  0.129  0.221  0.512  1.0
  O  O10  1  0.675  0.021  0.836  1.0
  O  O11  1  0.325  0.979  0.164  1.0
  O  O12  1  0.639  0.791  0.616  1.0
  O  O13  1  0.361  0.209  0.384  1.0
  O  O14  1  0.391  0.786  0.894  1.0
  O  O15  1  0.318  0.337  0.856  1.0
  O  O16  1  0.901  0.342  0.053  1.0
  O  O17  1  0.540  0.334  0.592  1.0
  O  O18  1  0.698  0.437  0.820  1.0
  O  O19  1  0.099  0.658  0.947  1.0
  O  O20  1  0.166  0.988  0.588  1.0
  O  O21  1  0.031  0.684  0.639  1.0
  O  O22  1  0.609  0.214  0.106  1.0
  O  O23  1  0.682  0.663  0.144  1.0
  O  O24  1  0.460  0.666  0.408  1.0
  O  O25  1  0.302  0.563  0.180  1.0
  O  O26  1  0.834  0.012  0.412  1.0
  O  O27  1  0.969  0.316  0.361  1.0
[/CIF]
.