The structure described by MgSm4(HO2)4 crystallizes in the monoclinic Pm space group. Mg(1) is bonded in a 3-coordinate geometry to one H(2), one O(1), and one O(6) atom. There are four inequivalent Sm sites. In the first Sm site, Sm(1) is bonded in a 5-coordinate geometry to one O(7), two equivalent O(3), and two equivalent O(8) atoms. In the second Sm site, Sm(2) is bonded in a 7-coordinate geometry to one O(1), one O(4), one O(6), two equivalent O(2), and two equivalent O(5) atoms. In the third Sm site, Sm(3) is bonded in a 6-coordinate geometry to one O(3), one O(5), two equivalent O(4), and two equivalent O(7) atoms. In the fourth Sm site, Sm(4) is bonded in a 6-coordinate geometry to one O(2), one O(8), two equivalent O(1), and two equivalent O(6) atoms. There are four inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(4) atom. In the second H site, H(2) is bonded in a single-bond geometry to one Mg(1) and one O(1) atom. In the third H site, H(3) is bonded in a single-bond geometry to one O(8) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one O(5) atom. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to one Mg(1), one Sm(2), two equivalent Sm(4), and one H(2) atom. In the second O site, O(2) is bonded in a trigonal non-coplanar geometry to one Sm(4) and two equivalent Sm(2) atoms. In the third O site, O(3) is bonded in a trigonal planar geometry to one Sm(3) and two equivalent Sm(1) atoms. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one Sm(2), two equivalent Sm(3), and one H(1) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one Sm(3), two equivalent Sm(2), and one H(4) atom. In the sixth O site, O(6) is bonded to one Mg(1), one Sm(2), and two equivalent Sm(4) atoms to form corner-sharing OSm3Mg tetrahedra. In the seventh O site, O(7) is bonded in a trigonal planar geometry to one Sm(1) and two equivalent Sm(3) atoms. In the eighth O site, O(8) is bonded in a single-bond geometry to one Sm(4), two equivalent Sm(1), and one H(3) atom. is represented by the CIF card [CIF]
data_Sm4Mg(HO2)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.779
_cell_length_b   11.618
_cell_length_c   3.696
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   89.985
_symmetry_Int_Tables_number   1
_cell_volume   248.188
_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  0.077  0.809  0.250  1.0
  Sm  Sm1  1  0.411  0.337  0.250  1.0
  Sm  Sm2  1  0.571  0.631  0.750  1.0
  Sm  Sm3  1  0.934  0.177  0.750  1.0
  Mg  Mg4  1  0.515  0.039  0.250  1.0
  H  H5  1  0.190  0.558  0.250  1.0
  H  H6  1  0.135  0.050  0.250  1.0
  H  H7  1  0.790  0.951  0.750  1.0
  H  H8  1  0.838  0.412  0.750  1.0
  O  O9  1  0.197  0.130  0.250  1.0
  O  O10  1  0.178  0.326  0.750  1.0
  O  O11  1  0.250  0.738  0.750  1.0
  O  O12  1  0.355  0.538  0.250  1.0
  O  O13  1  0.668  0.418  0.750  1.0
  O  O14  1  0.695  0.193  0.250  1.0
  O  O15  1  0.779  0.688  0.250  1.0
  O  O16  1  0.965  0.957  0.750  1.0
[/CIF]
.
The structure described by MgSm4(HO2)4 crystallizes in the monoclinic Pm space group. Mg(1) is bonded in a 3-coordinate geometry to one H(2), one O(1), and one O(6) atom. There are four inequivalent Sm sites. In the first Sm site, Sm(1) is bonded in a 5-coordinate geometry to one O(7), two equivalent O(3), and two equivalent O(8) atoms. In the second Sm site, Sm(2) is bonded in a 7-coordinate geometry to one O(1), one O(4), one O(6), two equivalent O(2), and two equivalent O(5) atoms. In the third Sm site, Sm(3) is bonded in a 6-coordinate geometry to one O(3), one O(5), two equivalent O(4), and two equivalent O(7) atoms. In the fourth Sm site, Sm(4) is bonded in a 6-coordinate geometry to one O(2), one O(8), two equivalent O(1), and two equivalent O(6) atoms. There are four inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(4) atom. In the second H site, H(2) is bonded in a single-bond geometry to one Mg(1) and one O(1) atom. In the third H site, H(3) is bonded in a single-bond geometry to one O(8) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one O(5) atom. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to one Mg(1), one Sm(2), two equivalent Sm(4), and one H(2) atom. In the second O site, O(2) is bonded in a trigonal non-coplanar geometry to one Sm(4) and two equivalent Sm(2) atoms. In the third O site, O(3) is bonded in a trigonal planar geometry to one Sm(3) and two equivalent Sm(1) atoms. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one Sm(2), two equivalent Sm(3), and one H(1) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one Sm(3), two equivalent Sm(2), and one H(4) atom. In the sixth O site, O(6) is bonded to one Mg(1), one Sm(2), and two equivalent Sm(4) atoms to form corner-sharing OSm3Mg tetrahedra. In the seventh O site, O(7) is bonded in a trigonal planar geometry to one Sm(1) and two equivalent Sm(3) atoms. In the eighth O site, O(8) is bonded in a single-bond geometry to one Sm(4), two equivalent Sm(1), and one H(3) atom. is represented by the CIF card [CIF]
data_Sm4Mg(HO2)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.779
_cell_length_b   11.618
_cell_length_c   3.696
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   89.985
_symmetry_Int_Tables_number   1
_cell_volume   248.188
_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  0.077  0.809  0.250  1.0
  Sm  Sm1  1  0.411  0.337  0.250  1.0
  Sm  Sm2  1  0.571  0.631  0.750  1.0
  Sm  Sm3  1  0.934  0.177  0.750  1.0
  Mg  Mg4  1  0.515  0.039  0.250  1.0
  H  H5  1  0.190  0.558  0.250  1.0
  H  H6  1  0.135  0.050  0.250  1.0
  H  H7  1  0.790  0.951  0.750  1.0
  H  H8  1  0.838  0.412  0.750  1.0
  O  O9  1  0.197  0.130  0.250  1.0
  O  O10  1  0.178  0.326  0.750  1.0
  O  O11  1  0.250  0.738  0.750  1.0
  O  O12  1  0.355  0.538  0.250  1.0
  O  O13  1  0.668  0.418  0.750  1.0
  O  O14  1  0.695  0.193  0.250  1.0
  O  O15  1  0.779  0.688  0.250  1.0
  O  O16  1  0.965  0.957  0.750  1.0
[/CIF]
.