The compound described by Er8Rh5C12 crystallizes in the monoclinic C2/m space group. There are four inequivalent Er sites. In the first Er site, Er(1) is bonded in a 11-coordinate geometry to two equivalent Rh(1), two equivalent C(3), two equivalent C(4), two equivalent C(6), and three equivalent C(2) atoms. In the second Er site, Er(2) is bonded in a 10-coordinate geometry to two equivalent Rh(1), two equivalent Rh(2), two equivalent Rh(3), two equivalent C(1), and two equivalent C(5) atoms. In the third Er site, Er(3) is bonded in a 5-coordinate geometry to two equivalent C(2), two equivalent C(6), and three equivalent C(3) atoms. In the fourth Er site, Er(4) is bonded in a 8-coordinate geometry to two equivalent Rh(2), two equivalent C(1), two equivalent C(4), and two equivalent C(5) atoms. There are three inequivalent Rh sites. In the first Rh site, Rh(1) is bonded in a 2-coordinate geometry to two equivalent Er(1), two equivalent Er(2), one C(5), and one C(6) atom. In the second Rh site, Rh(2) is bonded in a 6-coordinate geometry to two equivalent Er(2), two equivalent Er(4), one C(4), and one C(6) atom. In the third Rh site, Rh(3) is bonded in a distorted linear geometry to four equivalent Er(2) and two equivalent C(1) atoms. There are six inequivalent C sites. In the first C site, C(4) is bonded in a 4-coordinate geometry to two equivalent Er(1), two equivalent Er(4), one Rh(2), and one C(3) atom. In the second C site, C(5) is bonded in a 6-coordinate geometry to two equivalent Er(2), two equivalent Er(4), one Rh(1), and one C(1) atom. In the third C site, C(6) is bonded in a 7-coordinate geometry to two equivalent Er(1), two equivalent Er(3), one Rh(1), one Rh(2), and one C(2) atom. In the fourth C site, C(1) is bonded to two equivalent Er(2), two equivalent Er(4), one Rh(3), and one C(5) atom to form a mixture of distorted edge and corner-sharing CEr4RhC octahedra. The corner-sharing octahedra are not tilted. In the fifth C site, C(2) is bonded to two equivalent Er(3), three equivalent Er(1), and one C(6) atom to form a mixture of distorted edge and corner-sharing CEr5C octahedra. The corner-sharing octahedral tilt angles range from 6-14°. In the sixth C site, C(3) is bonded to two equivalent Er(1), three equivalent Er(3), and one C(4) atom to form a mixture of edge and corner-sharing CEr5C octahedra. The corner-sharing octahedral tilt angles range from 6-14°. is represented by the Crystallographic Information File (CIF) [CIF]
data_Er8Rh5C12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.485
_cell_length_b   7.401
_cell_length_c   14.053
_cell_angle_alpha   94.097
_cell_angle_beta   97.122
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   358.718
_cell_formula_units_Z   1
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  0.300  0.390  0.600  1.0
  Er  Er1  1  0.700  0.610  0.400  1.0
  Er  Er2  1  0.547  0.296  0.093  1.0
  Er  Er3  1  0.453  0.704  0.907  1.0
  Er  Er4  1  0.707  0.116  0.414  1.0
  Er  Er5  1  0.293  0.884  0.586  1.0
  Er  Er6  1  0.412  0.173  0.823  1.0
  Er  Er7  1  0.588  0.827  0.177  1.0
  Rh  Rh8  1  0.110  0.495  0.220  1.0
  Rh  Rh9  1  0.890  0.505  0.780  1.0
  Rh  Rh10  1  0.116  0.128  0.232  1.0
  Rh  Rh11  1  0.884  0.872  0.768  1.0
  Rh  Rh12  1  0.000  0.000  0.000  1.0
  C  C13  1  0.023  0.756  0.046  1.0
  C  C14  1  0.977  0.244  0.954  1.0
  C  C15  1  0.216  0.365  0.433  1.0
  C  C16  1  0.784  0.635  0.567  1.0
  C  C17  1  0.793  0.132  0.586  1.0
  C  C18  1  0.207  0.868  0.414  1.0
  C  C19  1  0.841  0.127  0.683  1.0
  C  C20  1  0.159  0.873  0.317  1.0
  C  C21  1  0.048  0.614  0.095  1.0
  C  C22  1  0.952  0.386  0.905  1.0
  C  C23  1  0.168  0.347  0.336  1.0
  C  C24  1  0.832  0.653  0.664  1.0
[/CIF]
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The compound described by Er8Rh5C12 crystallizes in the monoclinic C2/m space group. There are four inequivalent Er sites. In the first Er site, Er(1) is bonded in a 11-coordinate geometry to two equivalent Rh(1), two equivalent C(3), two equivalent C(4), two equivalent C(6), and three equivalent C(2) atoms. In the second Er site, Er(2) is bonded in a 10-coordinate geometry to two equivalent Rh(1), two equivalent Rh(2), two equivalent Rh(3), two equivalent C(1), and two equivalent C(5) atoms. In the third Er site, Er(3) is bonded in a 5-coordinate geometry to two equivalent C(2), two equivalent C(6), and three equivalent C(3) atoms. In the fourth Er site, Er(4) is bonded in a 8-coordinate geometry to two equivalent Rh(2), two equivalent C(1), two equivalent C(4), and two equivalent C(5) atoms. There are three inequivalent Rh sites. In the first Rh site, Rh(1) is bonded in a 2-coordinate geometry to two equivalent Er(1), two equivalent Er(2), one C(5), and one C(6) atom. In the second Rh site, Rh(2) is bonded in a 6-coordinate geometry to two equivalent Er(2), two equivalent Er(4), one C(4), and one C(6) atom. In the third Rh site, Rh(3) is bonded in a distorted linear geometry to four equivalent Er(2) and two equivalent C(1) atoms. There are six inequivalent C sites. In the first C site, C(4) is bonded in a 4-coordinate geometry to two equivalent Er(1), two equivalent Er(4), one Rh(2), and one C(3) atom. In the second C site, C(5) is bonded in a 6-coordinate geometry to two equivalent Er(2), two equivalent Er(4), one Rh(1), and one C(1) atom. In the third C site, C(6) is bonded in a 7-coordinate geometry to two equivalent Er(1), two equivalent Er(3), one Rh(1), one Rh(2), and one C(2) atom. In the fourth C site, C(1) is bonded to two equivalent Er(2), two equivalent Er(4), one Rh(3), and one C(5) atom to form a mixture of distorted edge and corner-sharing CEr4RhC octahedra. The corner-sharing octahedra are not tilted. In the fifth C site, C(2) is bonded to two equivalent Er(3), three equivalent Er(1), and one C(6) atom to form a mixture of distorted edge and corner-sharing CEr5C octahedra. The corner-sharing octahedral tilt angles range from 6-14°. In the sixth C site, C(3) is bonded to two equivalent Er(1), three equivalent Er(3), and one C(4) atom to form a mixture of edge and corner-sharing CEr5C octahedra. The corner-sharing octahedral tilt angles range from 6-14°. is represented by the Crystallographic Information File (CIF) [CIF]
data_Er8Rh5C12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.485
_cell_length_b   7.401
_cell_length_c   14.053
_cell_angle_alpha   94.097
_cell_angle_beta   97.122
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   358.718
_cell_formula_units_Z   1
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  0.300  0.390  0.600  1.0
  Er  Er1  1  0.700  0.610  0.400  1.0
  Er  Er2  1  0.547  0.296  0.093  1.0
  Er  Er3  1  0.453  0.704  0.907  1.0
  Er  Er4  1  0.707  0.116  0.414  1.0
  Er  Er5  1  0.293  0.884  0.586  1.0
  Er  Er6  1  0.412  0.173  0.823  1.0
  Er  Er7  1  0.588  0.827  0.177  1.0
  Rh  Rh8  1  0.110  0.495  0.220  1.0
  Rh  Rh9  1  0.890  0.505  0.780  1.0
  Rh  Rh10  1  0.116  0.128  0.232  1.0
  Rh  Rh11  1  0.884  0.872  0.768  1.0
  Rh  Rh12  1  0.000  0.000  0.000  1.0
  C  C13  1  0.023  0.756  0.046  1.0
  C  C14  1  0.977  0.244  0.954  1.0
  C  C15  1  0.216  0.365  0.433  1.0
  C  C16  1  0.784  0.635  0.567  1.0
  C  C17  1  0.793  0.132  0.586  1.0
  C  C18  1  0.207  0.868  0.414  1.0
  C  C19  1  0.841  0.127  0.683  1.0
  C  C20  1  0.159  0.873  0.317  1.0
  C  C21  1  0.048  0.614  0.095  1.0
  C  C22  1  0.952  0.386  0.905  1.0
  C  C23  1  0.168  0.347  0.336  1.0
  C  C24  1  0.832  0.653  0.664  1.0
[/CIF]
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