The structure described by Sm4OCl6 crystallizes in the hexagonal P6_3mc space group. There are two inequivalent Sm sites. In the first Sm site, Sm(1) is bonded in a 1-coordinate geometry to one O(1), two equivalent Cl(1), and three equivalent Cl(2) atoms. In the second Sm site, Sm(2) is bonded in a 7-coordinate geometry to one O(1), three equivalent Cl(1), and three equivalent Cl(2) atoms. O(1) is bonded to one Sm(2) and three equivalent Sm(1) atoms to form OSm4 trigonal pyramids that share corners with six equivalent Cl(2)Sm4 tetrahedra and edges with three equivalent Cl(2)Sm4 tetrahedra. There are two inequivalent Cl sites. In the first Cl site, Cl(1) is bonded in a 3-coordinate geometry to one Sm(2) and two equivalent Sm(1) atoms. In the second Cl site, Cl(2) is bonded to one Sm(2) and three equivalent Sm(1) atoms to form distorted ClSm4 tetrahedra that share corners with eight equivalent Cl(2)Sm4 tetrahedra, corners with two equivalent O(1)Sm4 trigonal pyramids, and  an edgeedge with one O(1)Sm4 trigonal pyramid. is represented by the CIF file [CIF]
data_Sm4Cl6O
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.707
_cell_length_b   8.707
_cell_length_c   8.283
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   543.882
_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  0.815  0.185  0.546  1.0
  Sm  Sm1  1  0.631  0.815  0.046  1.0
  Sm  Sm2  1  0.185  0.369  0.046  1.0
  Sm  Sm3  1  0.815  0.631  0.546  1.0
  Sm  Sm4  1  0.369  0.185  0.546  1.0
  Sm  Sm5  1  0.185  0.815  0.046  1.0
  Sm  Sm6  1  0.667  0.333  0.846  1.0
  Sm  Sm7  1  0.333  0.667  0.346  1.0
  Cl  Cl8  1  0.483  0.965  0.713  1.0
  Cl  Cl9  1  0.517  0.035  0.213  1.0
  Cl  Cl10  1  0.965  0.483  0.213  1.0
  Cl  Cl11  1  0.483  0.517  0.713  1.0
  Cl  Cl12  1  0.863  0.137  0.890  1.0
  Cl  Cl13  1  0.726  0.863  0.390  1.0
  Cl  Cl14  1  0.517  0.483  0.213  1.0
  Cl  Cl15  1  0.035  0.517  0.713  1.0
  Cl  Cl16  1  0.137  0.863  0.390  1.0
  Cl  Cl17  1  0.274  0.137  0.890  1.0
  Cl  Cl18  1  0.863  0.726  0.890  1.0
  Cl  Cl19  1  0.137  0.274  0.390  1.0
  O  O20  1  0.333  0.667  0.063  1.0
  O  O21  1  0.667  0.333  0.563  1.0
[/CIF]
.
The structure described by Sm4OCl6 crystallizes in the hexagonal P6_3mc space group. There are two inequivalent Sm sites. In the first Sm site, Sm(1) is bonded in a 1-coordinate geometry to one O(1), two equivalent Cl(1), and three equivalent Cl(2) atoms. In the second Sm site, Sm(2) is bonded in a 7-coordinate geometry to one O(1), three equivalent Cl(1), and three equivalent Cl(2) atoms. O(1) is bonded to one Sm(2) and three equivalent Sm(1) atoms to form OSm4 trigonal pyramids that share corners with six equivalent Cl(2)Sm4 tetrahedra and edges with three equivalent Cl(2)Sm4 tetrahedra. There are two inequivalent Cl sites. In the first Cl site, Cl(1) is bonded in a 3-coordinate geometry to one Sm(2) and two equivalent Sm(1) atoms. In the second Cl site, Cl(2) is bonded to one Sm(2) and three equivalent Sm(1) atoms to form distorted ClSm4 tetrahedra that share corners with eight equivalent Cl(2)Sm4 tetrahedra, corners with two equivalent O(1)Sm4 trigonal pyramids, and  an edgeedge with one O(1)Sm4 trigonal pyramid. is represented by the CIF file [CIF]
data_Sm4Cl6O
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.707
_cell_length_b   8.707
_cell_length_c   8.283
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   543.882
_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  0.815  0.185  0.546  1.0
  Sm  Sm1  1  0.631  0.815  0.046  1.0
  Sm  Sm2  1  0.185  0.369  0.046  1.0
  Sm  Sm3  1  0.815  0.631  0.546  1.0
  Sm  Sm4  1  0.369  0.185  0.546  1.0
  Sm  Sm5  1  0.185  0.815  0.046  1.0
  Sm  Sm6  1  0.667  0.333  0.846  1.0
  Sm  Sm7  1  0.333  0.667  0.346  1.0
  Cl  Cl8  1  0.483  0.965  0.713  1.0
  Cl  Cl9  1  0.517  0.035  0.213  1.0
  Cl  Cl10  1  0.965  0.483  0.213  1.0
  Cl  Cl11  1  0.483  0.517  0.713  1.0
  Cl  Cl12  1  0.863  0.137  0.890  1.0
  Cl  Cl13  1  0.726  0.863  0.390  1.0
  Cl  Cl14  1  0.517  0.483  0.213  1.0
  Cl  Cl15  1  0.035  0.517  0.713  1.0
  Cl  Cl16  1  0.137  0.863  0.390  1.0
  Cl  Cl17  1  0.274  0.137  0.890  1.0
  Cl  Cl18  1  0.863  0.726  0.890  1.0
  Cl  Cl19  1  0.137  0.274  0.390  1.0
  O  O20  1  0.333  0.667  0.063  1.0
  O  O21  1  0.667  0.333  0.563  1.0
[/CIF]
.