The structure described by Rh4Pb5 crystallizes in the orthorhombic Fmmm space group. There are three inequivalent Rh sites. In the first Rh site, Rh(1) is bonded in a 10-coordinate geometry to four equivalent Rh(3), two equivalent Pb(1), two equivalent Pb(2), and two equivalent Pb(3) atoms. In the second Rh site, Rh(2) is bonded in a 10-coordinate geometry to two equivalent Rh(2), four equivalent Pb(2), and four equivalent Pb(4) atoms. In the third Rh site, Rh(3) is bonded in a 10-coordinate geometry to two equivalent Rh(1), two equivalent Rh(3), two equivalent Pb(1), two equivalent Pb(2), and two equivalent Pb(3) atoms. There are four inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 6-coordinate geometry to two equivalent Rh(1) and four equivalent Rh(3) atoms. In the second Pb site, Pb(2) is bonded in a 5-coordinate geometry to one Rh(1), two equivalent Rh(2), and two equivalent Rh(3) atoms. In the third Pb site, Pb(3) is bonded to two equivalent Rh(1), four equivalent Rh(3), and one Pb(4) atom to form corner-sharing PbRh6Pb hexagonal pyramids. In the fourth Pb site, Pb(4) is bonded in a 5-coordinate geometry to four equivalent Rh(2) and one Pb(3) atom. is represented by the CIF card [CIF]
data_Rh4Pb5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.732
_cell_length_b   5.732
_cell_length_c   13.691
_cell_angle_alpha   96.131
_cell_angle_beta   96.131
_cell_angle_gamma   119.413
_symmetry_Int_Tables_number   1
_cell_volume   382.943
_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
  Rh  Rh0  1  0.916  0.916  0.831  1.0
  Rh  Rh1  1  0.084  0.084  0.169  1.0
  Rh  Rh2  1  0.750  0.250  0.500  1.0
  Rh  Rh3  1  0.919  0.418  0.837  1.0
  Rh  Rh4  1  0.081  0.582  0.163  1.0
  Rh  Rh5  1  0.418  0.919  0.837  1.0
  Rh  Rh6  1  0.582  0.081  0.163  1.0
  Rh  Rh7  1  0.250  0.750  0.500  1.0
  Pb  Pb8  1  0.836  0.164  1.000  1.0
  Pb  Pb9  1  0.998  0.334  0.332  1.0
  Pb  Pb10  1  0.412  0.412  0.823  1.0
  Pb  Pb11  1  0.164  0.836  1.000  1.0
  Pb  Pb12  1  0.588  0.588  0.177  1.0
  Pb  Pb13  1  0.666  0.002  0.668  1.0
  Pb  Pb14  1  0.334  0.998  0.332  1.0
  Pb  Pb15  1  0.002  0.666  0.668  1.0
  Pb  Pb16  1  0.286  0.286  0.572  1.0
  Pb  Pb17  1  0.714  0.714  0.428  1.0
[/CIF]
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The structure described by Rh4Pb5 crystallizes in the orthorhombic Fmmm space group. There are three inequivalent Rh sites. In the first Rh site, Rh(1) is bonded in a 10-coordinate geometry to four equivalent Rh(3), two equivalent Pb(1), two equivalent Pb(2), and two equivalent Pb(3) atoms. In the second Rh site, Rh(2) is bonded in a 10-coordinate geometry to two equivalent Rh(2), four equivalent Pb(2), and four equivalent Pb(4) atoms. In the third Rh site, Rh(3) is bonded in a 10-coordinate geometry to two equivalent Rh(1), two equivalent Rh(3), two equivalent Pb(1), two equivalent Pb(2), and two equivalent Pb(3) atoms. There are four inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 6-coordinate geometry to two equivalent Rh(1) and four equivalent Rh(3) atoms. In the second Pb site, Pb(2) is bonded in a 5-coordinate geometry to one Rh(1), two equivalent Rh(2), and two equivalent Rh(3) atoms. In the third Pb site, Pb(3) is bonded to two equivalent Rh(1), four equivalent Rh(3), and one Pb(4) atom to form corner-sharing PbRh6Pb hexagonal pyramids. In the fourth Pb site, Pb(4) is bonded in a 5-coordinate geometry to four equivalent Rh(2) and one Pb(3) atom. is represented by the CIF card [CIF]
data_Rh4Pb5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.732
_cell_length_b   5.732
_cell_length_c   13.691
_cell_angle_alpha   96.131
_cell_angle_beta   96.131
_cell_angle_gamma   119.413
_symmetry_Int_Tables_number   1
_cell_volume   382.943
_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
  Rh  Rh0  1  0.916  0.916  0.831  1.0
  Rh  Rh1  1  0.084  0.084  0.169  1.0
  Rh  Rh2  1  0.750  0.250  0.500  1.0
  Rh  Rh3  1  0.919  0.418  0.837  1.0
  Rh  Rh4  1  0.081  0.582  0.163  1.0
  Rh  Rh5  1  0.418  0.919  0.837  1.0
  Rh  Rh6  1  0.582  0.081  0.163  1.0
  Rh  Rh7  1  0.250  0.750  0.500  1.0
  Pb  Pb8  1  0.836  0.164  1.000  1.0
  Pb  Pb9  1  0.998  0.334  0.332  1.0
  Pb  Pb10  1  0.412  0.412  0.823  1.0
  Pb  Pb11  1  0.164  0.836  1.000  1.0
  Pb  Pb12  1  0.588  0.588  0.177  1.0
  Pb  Pb13  1  0.666  0.002  0.668  1.0
  Pb  Pb14  1  0.334  0.998  0.332  1.0
  Pb  Pb15  1  0.002  0.666  0.668  1.0
  Pb  Pb16  1  0.286  0.286  0.572  1.0
  Pb  Pb17  1  0.714  0.714  0.428  1.0
[/CIF]
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