The material structure described by Sm(O4Cl)3 crystallizes in the hexagonal P6_3/m space group. Sm(1) is bonded in a 9-coordinate geometry to three equivalent O(2) and six equivalent O(3) atoms. There are three inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to one Cl(1) atom. In the second O site, O(2) is bonded in a bent 150 degrees geometry to one Sm(1) and one Cl(1) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one Sm(1) and one Cl(1) atom. Cl(1) is bonded in a tetrahedral geometry to one O(1), one O(2), and two equivalent O(3) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sm(ClO4)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.382
_cell_length_b   9.382
_cell_length_c   5.820
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   443.672
_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  0.333  0.667  0.750  1.0
  Sm  Sm1  1  0.667  0.333  0.250  1.0
  Cl  Cl2  1  0.091  0.709  0.250  1.0
  Cl  Cl3  1  0.291  0.382  0.250  1.0
  Cl  Cl4  1  0.618  0.909  0.250  1.0
  Cl  Cl5  1  0.382  0.091  0.750  1.0
  Cl  Cl6  1  0.709  0.618  0.750  1.0
  Cl  Cl7  1  0.909  0.291  0.750  1.0
  O  O8  1  0.020  0.812  0.250  1.0
  O  O9  1  0.032  0.467  0.750  1.0
  O  O10  1  0.196  0.743  0.046  1.0
  O  O11  1  0.196  0.743  0.454  1.0
  O  O12  1  0.435  0.968  0.750  1.0
  O  O13  1  0.257  0.453  0.454  1.0
  O  O14  1  0.257  0.453  0.046  1.0
  O  O15  1  0.188  0.208  0.250  1.0
  O  O16  1  0.547  0.804  0.046  1.0
  O  O17  1  0.547  0.804  0.454  1.0
  O  O18  1  0.208  0.020  0.750  1.0
  O  O19  1  0.467  0.435  0.250  1.0
  O  O20  1  0.533  0.565  0.750  1.0
  O  O21  1  0.792  0.980  0.250  1.0
  O  O22  1  0.453  0.196  0.546  1.0
  O  O23  1  0.453  0.196  0.954  1.0
  O  O24  1  0.812  0.792  0.750  1.0
  O  O25  1  0.743  0.547  0.954  1.0
  O  O26  1  0.743  0.547  0.546  1.0
  O  O27  1  0.565  0.032  0.250  1.0
  O  O28  1  0.804  0.257  0.954  1.0
  O  O29  1  0.804  0.257  0.546  1.0
  O  O30  1  0.968  0.533  0.250  1.0
  O  O31  1  0.980  0.188  0.750  1.0
[/CIF]
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The material structure described by Sm(O4Cl)3 crystallizes in the hexagonal P6_3/m space group. Sm(1) is bonded in a 9-coordinate geometry to three equivalent O(2) and six equivalent O(3) atoms. There are three inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to one Cl(1) atom. In the second O site, O(2) is bonded in a bent 150 degrees geometry to one Sm(1) and one Cl(1) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one Sm(1) and one Cl(1) atom. Cl(1) is bonded in a tetrahedral geometry to one O(1), one O(2), and two equivalent O(3) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sm(ClO4)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.382
_cell_length_b   9.382
_cell_length_c   5.820
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   443.672
_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  0.333  0.667  0.750  1.0
  Sm  Sm1  1  0.667  0.333  0.250  1.0
  Cl  Cl2  1  0.091  0.709  0.250  1.0
  Cl  Cl3  1  0.291  0.382  0.250  1.0
  Cl  Cl4  1  0.618  0.909  0.250  1.0
  Cl  Cl5  1  0.382  0.091  0.750  1.0
  Cl  Cl6  1  0.709  0.618  0.750  1.0
  Cl  Cl7  1  0.909  0.291  0.750  1.0
  O  O8  1  0.020  0.812  0.250  1.0
  O  O9  1  0.032  0.467  0.750  1.0
  O  O10  1  0.196  0.743  0.046  1.0
  O  O11  1  0.196  0.743  0.454  1.0
  O  O12  1  0.435  0.968  0.750  1.0
  O  O13  1  0.257  0.453  0.454  1.0
  O  O14  1  0.257  0.453  0.046  1.0
  O  O15  1  0.188  0.208  0.250  1.0
  O  O16  1  0.547  0.804  0.046  1.0
  O  O17  1  0.547  0.804  0.454  1.0
  O  O18  1  0.208  0.020  0.750  1.0
  O  O19  1  0.467  0.435  0.250  1.0
  O  O20  1  0.533  0.565  0.750  1.0
  O  O21  1  0.792  0.980  0.250  1.0
  O  O22  1  0.453  0.196  0.546  1.0
  O  O23  1  0.453  0.196  0.954  1.0
  O  O24  1  0.812  0.792  0.750  1.0
  O  O25  1  0.743  0.547  0.954  1.0
  O  O26  1  0.743  0.547  0.546  1.0
  O  O27  1  0.565  0.032  0.250  1.0
  O  O28  1  0.804  0.257  0.954  1.0
  O  O29  1  0.804  0.257  0.546  1.0
  O  O30  1  0.968  0.533  0.250  1.0
  O  O31  1  0.980  0.188  0.750  1.0
[/CIF]
.