The structure described by Sm3Rh4Sn13 crystallizes in the cubic Pm-3n space group. Sm(1) is bonded in a 16-coordinate geometry to four equivalent Rh(1) and twelve equivalent Sn(1) atoms. Rh(1) is bonded in a 9-coordinate geometry to three equivalent Sm(1) and six equivalent Sn(1) atoms. There are two inequivalent Sn sites. In the first Sn site, Sn(2) is bonded in a cuboctahedral geometry to twelve equivalent Sn(1) atoms. In the second Sn site, Sn(1) is bonded in a 2-coordinate geometry to three equivalent Sm(1), two equivalent Rh(1), and one Sn(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sm3Sn13Rh4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.724
_cell_length_b   9.724
_cell_length_c   9.724
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   919.475
_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  0.500  0.000  0.750  1.0
  Sm  Sm1  1  0.250  0.500  1.000  1.0
  Sm  Sm2  1  0.500  0.000  0.250  1.0
  Sm  Sm3  1  0.750  0.500  1.000  1.0
  Sm  Sm4  1  0.000  0.250  0.500  1.0
  Sm  Sm5  1  0.000  0.750  0.500  1.0
  Sn  Sn6  1  0.000  0.308  0.847  1.0
  Sn  Sn7  1  0.847  0.000  0.692  1.0
  Sn  Sn8  1  0.692  0.847  1.000  1.0
  Sn  Sn9  1  0.308  0.847  1.000  1.0
  Sn  Sn10  1  0.347  0.808  0.500  1.0
  Sn  Sn11  1  0.653  0.192  0.500  1.0
  Sn  Sn12  1  0.000  0.000  1.000  1.0
  Sn  Sn13  1  0.000  0.692  0.847  1.0
  Sn  Sn14  1  0.500  0.347  0.192  1.0
  Sn  Sn15  1  0.500  0.653  0.808  1.0
  Sn  Sn16  1  0.153  0.000  0.308  1.0
  Sn  Sn17  1  0.808  0.500  0.653  1.0
  Sn  Sn18  1  0.308  0.153  1.000  1.0
  Sn  Sn19  1  0.500  0.347  0.808  1.0
  Sn  Sn20  1  0.192  0.500  0.653  1.0
  Sn  Sn21  1  0.153  0.000  0.692  1.0
  Sn  Sn22  1  0.000  0.692  0.153  1.0
  Sn  Sn23  1  0.347  0.192  0.500  1.0
  Sn  Sn24  1  0.500  0.653  0.192  1.0
  Sn  Sn25  1  0.500  0.500  0.500  1.0
  Sn  Sn26  1  0.808  0.500  0.347  1.0
  Sn  Sn27  1  0.692  0.153  1.000  1.0
  Sn  Sn28  1  0.847  0.000  0.308  1.0
  Sn  Sn29  1  0.653  0.808  0.500  1.0
  Sn  Sn30  1  0.000  0.308  0.153  1.0
  Sn  Sn31  1  0.192  0.500  0.347  1.0
  Rh  Rh32  1  0.750  0.750  0.250  1.0
  Rh  Rh33  1  0.250  0.750  0.250  1.0
  Rh  Rh34  1  0.750  0.250  0.250  1.0
  Rh  Rh35  1  0.250  0.250  0.750  1.0
  Rh  Rh36  1  0.750  0.250  0.750  1.0
  Rh  Rh37  1  0.750  0.750  0.750  1.0
  Rh  Rh38  1  0.250  0.250  0.250  1.0
  Rh  Rh39  1  0.250  0.750  0.750  1.0
[/CIF]
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The structure described by Sm3Rh4Sn13 crystallizes in the cubic Pm-3n space group. Sm(1) is bonded in a 16-coordinate geometry to four equivalent Rh(1) and twelve equivalent Sn(1) atoms. Rh(1) is bonded in a 9-coordinate geometry to three equivalent Sm(1) and six equivalent Sn(1) atoms. There are two inequivalent Sn sites. In the first Sn site, Sn(2) is bonded in a cuboctahedral geometry to twelve equivalent Sn(1) atoms. In the second Sn site, Sn(1) is bonded in a 2-coordinate geometry to three equivalent Sm(1), two equivalent Rh(1), and one Sn(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sm3Sn13Rh4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.724
_cell_length_b   9.724
_cell_length_c   9.724
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   919.475
_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  0.500  0.000  0.750  1.0
  Sm  Sm1  1  0.250  0.500  1.000  1.0
  Sm  Sm2  1  0.500  0.000  0.250  1.0
  Sm  Sm3  1  0.750  0.500  1.000  1.0
  Sm  Sm4  1  0.000  0.250  0.500  1.0
  Sm  Sm5  1  0.000  0.750  0.500  1.0
  Sn  Sn6  1  0.000  0.308  0.847  1.0
  Sn  Sn7  1  0.847  0.000  0.692  1.0
  Sn  Sn8  1  0.692  0.847  1.000  1.0
  Sn  Sn9  1  0.308  0.847  1.000  1.0
  Sn  Sn10  1  0.347  0.808  0.500  1.0
  Sn  Sn11  1  0.653  0.192  0.500  1.0
  Sn  Sn12  1  0.000  0.000  1.000  1.0
  Sn  Sn13  1  0.000  0.692  0.847  1.0
  Sn  Sn14  1  0.500  0.347  0.192  1.0
  Sn  Sn15  1  0.500  0.653  0.808  1.0
  Sn  Sn16  1  0.153  0.000  0.308  1.0
  Sn  Sn17  1  0.808  0.500  0.653  1.0
  Sn  Sn18  1  0.308  0.153  1.000  1.0
  Sn  Sn19  1  0.500  0.347  0.808  1.0
  Sn  Sn20  1  0.192  0.500  0.653  1.0
  Sn  Sn21  1  0.153  0.000  0.692  1.0
  Sn  Sn22  1  0.000  0.692  0.153  1.0
  Sn  Sn23  1  0.347  0.192  0.500  1.0
  Sn  Sn24  1  0.500  0.653  0.192  1.0
  Sn  Sn25  1  0.500  0.500  0.500  1.0
  Sn  Sn26  1  0.808  0.500  0.347  1.0
  Sn  Sn27  1  0.692  0.153  1.000  1.0
  Sn  Sn28  1  0.847  0.000  0.308  1.0
  Sn  Sn29  1  0.653  0.808  0.500  1.0
  Sn  Sn30  1  0.000  0.308  0.153  1.0
  Sn  Sn31  1  0.192  0.500  0.347  1.0
  Rh  Rh32  1  0.750  0.750  0.250  1.0
  Rh  Rh33  1  0.250  0.750  0.250  1.0
  Rh  Rh34  1  0.750  0.250  0.250  1.0
  Rh  Rh35  1  0.250  0.250  0.750  1.0
  Rh  Rh36  1  0.750  0.250  0.750  1.0
  Rh  Rh37  1  0.750  0.750  0.750  1.0
  Rh  Rh38  1  0.250  0.250  0.250  1.0
  Rh  Rh39  1  0.250  0.750  0.750  1.0
[/CIF]
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