The material described by ErRh3Si2 crystallizes in the orthorhombic Imma space group. Er(1) is bonded in a 20-coordinate geometry to two equivalent Er(1), four equivalent Rh(2), eight equivalent Rh(1), and six equivalent Si(1) atoms. There are two inequivalent Rh sites. In the first Rh site, Rh(1) is bonded in a 6-coordinate geometry to four equivalent Er(1) and four equivalent Si(1) atoms. In the second Rh site, Rh(2) is bonded in a 6-coordinate geometry to four equivalent Er(1) and four equivalent Si(1) atoms. Si(1) is bonded in a 6-coordinate geometry to three equivalent Er(1), two equivalent Rh(2), and four equivalent Rh(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_ErSi2Rh3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.508
_cell_length_b   6.556
_cell_length_c   6.556
_cell_angle_alpha   65.821
_cell_angle_beta   65.162
_cell_angle_gamma   65.162
_symmetry_Int_Tables_number   1
_cell_volume   187.013
_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
  Er  Er0  1  0.951  0.750  0.750  1.0
  Er  Er1  1  0.049  0.250  0.250  1.0
  Si  Si2  1  0.615  0.578  0.578  1.0
  Si  Si3  1  0.271  0.922  0.922  1.0
  Si  Si4  1  0.385  0.422  0.422  1.0
  Si  Si5  1  0.729  0.078  0.078  1.0
  Rh  Rh6  1  0.500  0.786  0.214  1.0
  Rh  Rh7  1  0.500  0.214  0.786  1.0
  Rh  Rh8  1  0.500  0.000  0.500  1.0
  Rh  Rh9  1  0.500  0.500  0.000  1.0
  Rh  Rh10  1  0.000  0.286  0.714  1.0
  Rh  Rh11  1  0.000  0.714  0.286  1.0
[/CIF]
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The material described by ErRh3Si2 crystallizes in the orthorhombic Imma space group. Er(1) is bonded in a 20-coordinate geometry to two equivalent Er(1), four equivalent Rh(2), eight equivalent Rh(1), and six equivalent Si(1) atoms. There are two inequivalent Rh sites. In the first Rh site, Rh(1) is bonded in a 6-coordinate geometry to four equivalent Er(1) and four equivalent Si(1) atoms. In the second Rh site, Rh(2) is bonded in a 6-coordinate geometry to four equivalent Er(1) and four equivalent Si(1) atoms. Si(1) is bonded in a 6-coordinate geometry to three equivalent Er(1), two equivalent Rh(2), and four equivalent Rh(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_ErSi2Rh3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.508
_cell_length_b   6.556
_cell_length_c   6.556
_cell_angle_alpha   65.821
_cell_angle_beta   65.162
_cell_angle_gamma   65.162
_symmetry_Int_Tables_number   1
_cell_volume   187.013
_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
  Er  Er0  1  0.951  0.750  0.750  1.0
  Er  Er1  1  0.049  0.250  0.250  1.0
  Si  Si2  1  0.615  0.578  0.578  1.0
  Si  Si3  1  0.271  0.922  0.922  1.0
  Si  Si4  1  0.385  0.422  0.422  1.0
  Si  Si5  1  0.729  0.078  0.078  1.0
  Rh  Rh6  1  0.500  0.786  0.214  1.0
  Rh  Rh7  1  0.500  0.214  0.786  1.0
  Rh  Rh8  1  0.500  0.000  0.500  1.0
  Rh  Rh9  1  0.500  0.500  0.000  1.0
  Rh  Rh10  1  0.000  0.286  0.714  1.0
  Rh  Rh11  1  0.000  0.714  0.286  1.0
[/CIF]
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