The material structure described by RhSn4 crystallizes in the trigonal P3_121 space group. Rh(1) is bonded in a 8-coordinate geometry to two equivalent Sn(2), two equivalent Sn(3), and four equivalent Sn(1) atoms. There are three inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 2-coordinate geometry to two equivalent Rh(1) atoms. In the second Sn site, Sn(3) is bonded in a distorted water-like geometry to two equivalent Rh(1) atoms. In the third Sn site, Sn(2) is bonded in a distorted bent 120 degrees geometry to two equivalent Rh(1) atoms. is represented by the CIF file [CIF]
data_Sn4Rh
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.843
_cell_length_b   6.843
_cell_length_c   8.652
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   350.914
_cell_formula_units_Z   3
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
  Sn  Sn0  1  0.763  0.260  0.567  1.0
  Sn  Sn1  1  0.497  0.237  0.234  1.0
  Sn  Sn2  1  0.503  0.740  0.433  1.0
  Sn  Sn3  1  0.740  0.503  0.901  1.0
  Sn  Sn4  1  0.260  0.763  0.766  1.0
  Sn  Sn5  1  0.237  0.497  0.099  1.0
  Sn  Sn6  1  0.373  0.373  0.667  1.0
  Sn  Sn7  1  0.000  0.627  0.333  1.0
  Sn  Sn8  1  0.627  0.000  0.000  1.0
  Sn  Sn9  1  0.917  0.917  0.667  1.0
  Sn  Sn10  1  0.000  0.083  0.333  1.0
  Sn  Sn11  1  0.083  0.000  0.000  1.0
  Rh  Rh12  1  0.688  0.688  0.167  1.0
  Rh  Rh13  1  0.000  0.312  0.833  1.0
  Rh  Rh14  1  0.312  0.000  0.500  1.0
[/CIF]
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The material structure described by RhSn4 crystallizes in the trigonal P3_121 space group. Rh(1) is bonded in a 8-coordinate geometry to two equivalent Sn(2), two equivalent Sn(3), and four equivalent Sn(1) atoms. There are three inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 2-coordinate geometry to two equivalent Rh(1) atoms. In the second Sn site, Sn(3) is bonded in a distorted water-like geometry to two equivalent Rh(1) atoms. In the third Sn site, Sn(2) is bonded in a distorted bent 120 degrees geometry to two equivalent Rh(1) atoms. is represented by the CIF file [CIF]
data_Sn4Rh
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.843
_cell_length_b   6.843
_cell_length_c   8.652
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   350.914
_cell_formula_units_Z   3
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
  Sn  Sn0  1  0.763  0.260  0.567  1.0
  Sn  Sn1  1  0.497  0.237  0.234  1.0
  Sn  Sn2  1  0.503  0.740  0.433  1.0
  Sn  Sn3  1  0.740  0.503  0.901  1.0
  Sn  Sn4  1  0.260  0.763  0.766  1.0
  Sn  Sn5  1  0.237  0.497  0.099  1.0
  Sn  Sn6  1  0.373  0.373  0.667  1.0
  Sn  Sn7  1  0.000  0.627  0.333  1.0
  Sn  Sn8  1  0.627  0.000  0.000  1.0
  Sn  Sn9  1  0.917  0.917  0.667  1.0
  Sn  Sn10  1  0.000  0.083  0.333  1.0
  Sn  Sn11  1  0.083  0.000  0.000  1.0
  Rh  Rh12  1  0.688  0.688  0.167  1.0
  Rh  Rh13  1  0.000  0.312  0.833  1.0
  Rh  Rh14  1  0.312  0.000  0.500  1.0
[/CIF]
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