The material structure described by Sm7Rh3 crystallizes in the hexagonal P6_3mc space group. There are three inequivalent Sm sites. In the first Sm site, Sm(1) is bonded in a distorted trigonal non-coplanar geometry to three equivalent Rh(1) atoms. In the second Sm site, Sm(3) is bonded in a distorted water-like geometry to two equivalent Rh(1) atoms. In the third Sm site, Sm(2) is bonded in a 3-coordinate geometry to three equivalent Rh(1) atoms. Rh(1) is bonded in a 6-coordinate geometry to one Sm(1), two equivalent Sm(3), and three equivalent Sm(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sm7Rh3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.262
_cell_length_b   10.065
_cell_length_c   10.065
_cell_angle_alpha   120.047
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   549.192
_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  0.462  0.333  0.667  1.0
  Sm  Sm1  1  0.962  0.667  0.333  1.0
  Sm  Sm2  1  0.251  0.125  0.875  1.0
  Sm  Sm3  1  0.251  0.750  0.875  1.0
  Sm  Sm4  1  0.251  0.125  0.250  1.0
  Sm  Sm5  1  0.751  0.875  0.125  1.0
  Sm  Sm6  1  0.751  0.250  0.125  1.0
  Sm  Sm7  1  0.751  0.875  0.750  1.0
  Sm  Sm8  1  0.446  0.542  0.458  1.0
  Sm  Sm9  1  0.446  0.916  0.458  1.0
  Sm  Sm10  1  0.446  0.542  0.084  1.0
  Sm  Sm11  1  0.946  0.458  0.542  1.0
  Sm  Sm12  1  0.946  0.084  0.542  1.0
  Sm  Sm13  1  0.946  0.458  0.916  1.0
  Rh  Rh14  1  0.180  0.812  0.188  1.0
  Rh  Rh15  1  0.180  0.376  0.188  1.0
  Rh  Rh16  1  0.180  0.812  0.624  1.0
  Rh  Rh17  1  0.680  0.188  0.812  1.0
  Rh  Rh18  1  0.680  0.624  0.812  1.0
  Rh  Rh19  1  0.680  0.188  0.376  1.0
[/CIF]
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The material structure described by Sm7Rh3 crystallizes in the hexagonal P6_3mc space group. There are three inequivalent Sm sites. In the first Sm site, Sm(1) is bonded in a distorted trigonal non-coplanar geometry to three equivalent Rh(1) atoms. In the second Sm site, Sm(3) is bonded in a distorted water-like geometry to two equivalent Rh(1) atoms. In the third Sm site, Sm(2) is bonded in a 3-coordinate geometry to three equivalent Rh(1) atoms. Rh(1) is bonded in a 6-coordinate geometry to one Sm(1), two equivalent Sm(3), and three equivalent Sm(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sm7Rh3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.262
_cell_length_b   10.065
_cell_length_c   10.065
_cell_angle_alpha   120.047
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   549.192
_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  0.462  0.333  0.667  1.0
  Sm  Sm1  1  0.962  0.667  0.333  1.0
  Sm  Sm2  1  0.251  0.125  0.875  1.0
  Sm  Sm3  1  0.251  0.750  0.875  1.0
  Sm  Sm4  1  0.251  0.125  0.250  1.0
  Sm  Sm5  1  0.751  0.875  0.125  1.0
  Sm  Sm6  1  0.751  0.250  0.125  1.0
  Sm  Sm7  1  0.751  0.875  0.750  1.0
  Sm  Sm8  1  0.446  0.542  0.458  1.0
  Sm  Sm9  1  0.446  0.916  0.458  1.0
  Sm  Sm10  1  0.446  0.542  0.084  1.0
  Sm  Sm11  1  0.946  0.458  0.542  1.0
  Sm  Sm12  1  0.946  0.084  0.542  1.0
  Sm  Sm13  1  0.946  0.458  0.916  1.0
  Rh  Rh14  1  0.180  0.812  0.188  1.0
  Rh  Rh15  1  0.180  0.376  0.188  1.0
  Rh  Rh16  1  0.180  0.812  0.624  1.0
  Rh  Rh17  1  0.680  0.188  0.812  1.0
  Rh  Rh18  1  0.680  0.624  0.812  1.0
  Rh  Rh19  1  0.680  0.188  0.376  1.0
[/CIF]
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