The compound described by Ho7Ru2C11 crystallizes in the orthorhombic Cmcm space group. There are four inequivalent Ho sites. In the first Ho site, Ho(1) is bonded to two equivalent C(1), two equivalent C(2), and two equivalent C(4) atoms to form HoC6 octahedra that share corners with two equivalent C(3)Ho4RuC octahedra, corners with two equivalent C(6)Ho4RuC octahedra, and edges with two equivalent Ho(1)C6 octahedra. The corner-sharing octahedral tilt angles range from 41-60°. In the second Ho site, Ho(2) is bonded in a 9-coordinate geometry to one C(4), two equivalent C(1), two equivalent C(5), two equivalent C(6), and two equivalent C(7) atoms. In the third Ho site, Ho(3) is bonded in a 9-coordinate geometry to two equivalent C(3), two equivalent C(4), two equivalent C(7), and three equivalent C(5) atoms. In the fourth Ho site, Ho(4) is bonded in a 5-coordinate geometry to one C(2), two equivalent C(3), and two equivalent C(7) atoms. There are two inequivalent Ru sites. In the first Ru site, Ru(1) is bonded in a distorted trigonal planar geometry to one C(6) and two equivalent C(2) atoms. In the second Ru site, Ru(2) is bonded in a distorted linear geometry to two equivalent C(3) and two equivalent C(7) atoms. There are seven inequivalent C sites. In the first C site, C(1) is bonded in a 7-coordinate geometry to two equivalent Ho(1), four equivalent Ho(2), and one C(6) atom. In the second C site, C(2) is bonded to two equivalent Ho(1), two equivalent Ho(4), and two equivalent Ru(1) atoms to form CHo4Ru2 octahedra that share corners with two equivalent C(6)Ho4RuC octahedra, corners with four equivalent C(3)Ho4RuC octahedra, and edges with two equivalent C(2)Ho4Ru2 octahedra. The corner-sharing octahedral tilt angles range from 53-73°. In the third C site, C(3) is bonded to two equivalent Ho(3), two equivalent Ho(4), one Ru(2), and one C(4) atom to form CHo4RuC octahedra that share  a cornercorner with one Ho(1)C6 octahedra,  a cornercorner with one C(3)Ho4RuC octahedra, corners with two equivalent C(2)Ho4Ru2 octahedra, corners with four equivalent C(5)Ho5C octahedra,  an edgeedge with one C(5)Ho5C octahedra, and edges with two equivalent C(3)Ho4RuC octahedra. The corner-sharing octahedral tilt angles range from 0-73°. In the fourth C site, C(4) is bonded in a 5-coordinate geometry to one Ho(1), one Ho(2), two equivalent Ho(3), and one C(3) atom. In the fifth C site, C(5) is bonded to two equivalent Ho(2), three equivalent Ho(3), and one C(7) atom to form CHo5C octahedra that share corners with two equivalent C(6)Ho4RuC octahedra, corners with four equivalent C(3)Ho4RuC octahedra,  an edgeedge with one C(3)Ho4RuC octahedra,  an edgeedge with one C(6)Ho4RuC octahedra, and edges with four equivalent C(5)Ho5C octahedra. The corner-sharing octahedral tilt angles range from 15-69°. In the sixth C site, C(6) is bonded to four equivalent Ho(2), one Ru(1), and one C(1) atom to form distorted CHo4RuC octahedra that share corners with two equivalent Ho(1)C6 octahedra, corners with two equivalent C(2)Ho4Ru2 octahedra, corners with four equivalent C(5)Ho5C octahedra, edges with two equivalent C(6)Ho4RuC octahedra, and edges with two equivalent C(5)Ho5C octahedra. The corner-sharing octahedral tilt angles range from 15-53°. In the seventh C site, C(7) is bonded in a 8-coordinate geometry to two equivalent Ho(2), two equivalent Ho(3), two equivalent Ho(4), one Ru(2), and one C(5) atom. is represented by the CIF file [CIF]
data_Ho7Ru2C11
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.427
_cell_length_b   8.436
_cell_length_c   19.834
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   101.720
_symmetry_Int_Tables_number   1
_cell_volume   561.474
_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
  Ho  Ho0  1  0.897  0.795  0.250  1.0
  Ho  Ho1  1  0.103  0.205  0.750  1.0
  Ho  Ho2  1  0.278  0.557  0.655  1.0
  Ho  Ho3  1  0.722  0.443  0.345  1.0
  Ho  Ho4  1  0.722  0.443  0.155  1.0
  Ho  Ho5  1  0.278  0.557  0.845  1.0
  Ho  Ho6  1  0.338  0.677  0.019  1.0
  Ho  Ho7  1  0.662  0.323  0.981  1.0
  Ho  Ho8  1  0.662  0.323  0.519  1.0
  Ho  Ho9  1  0.338  0.677  0.481  1.0
  Ho  Ho10  1  0.523  0.045  0.127  1.0
  Ho  Ho11  1  0.477  0.955  0.873  1.0
  Ho  Ho12  1  0.477  0.955  0.627  1.0
  Ho  Ho13  1  0.523  0.045  0.373  1.0
  Ru  Ru14  1  0.081  0.162  0.250  1.0
  Ru  Ru15  1  0.919  0.838  0.750  1.0
  Ru  Ru16  1  0.000  0.000  0.000  1.0
  Ru  Ru17  1  0.000  0.000  0.500  1.0
  C  C18  1  0.279  0.558  0.250  1.0
  C  C19  1  0.721  0.442  0.750  1.0
  C  C20  1  0.503  0.007  0.250  1.0
  C  C21  1  0.497  0.993  0.750  1.0
  C  C22  1  0.074  0.148  0.579  1.0
  C  C23  1  0.926  0.852  0.421  1.0
  C  C24  1  0.926  0.852  0.079  1.0
  C  C25  1  0.074  0.148  0.921  1.0
  C  C26  1  0.133  0.266  0.623  1.0
  C  C27  1  0.867  0.734  0.377  1.0
  C  C28  1  0.867  0.734  0.123  1.0
  C  C29  1  0.133  0.266  0.877  1.0
  C  C30  1  0.206  0.412  0.063  1.0
  C  C31  1  0.794  0.588  0.937  1.0
  C  C32  1  0.794  0.588  0.563  1.0
  C  C33  1  0.206  0.412  0.437  1.0
  C  C34  1  0.199  0.397  0.250  1.0
  C  C35  1  0.801  0.603  0.750  1.0
  C  C36  1  0.127  0.254  0.084  1.0
  C  C37  1  0.873  0.746  0.916  1.0
  C  C38  1  0.873  0.746  0.584  1.0
  C  C39  1  0.127  0.254  0.416  1.0
[/CIF]
.
The compound described by Ho7Ru2C11 crystallizes in the orthorhombic Cmcm space group. There are four inequivalent Ho sites. In the first Ho site, Ho(1) is bonded to two equivalent C(1), two equivalent C(2), and two equivalent C(4) atoms to form HoC6 octahedra that share corners with two equivalent C(3)Ho4RuC octahedra, corners with two equivalent C(6)Ho4RuC octahedra, and edges with two equivalent Ho(1)C6 octahedra. The corner-sharing octahedral tilt angles range from 41-60°. In the second Ho site, Ho(2) is bonded in a 9-coordinate geometry to one C(4), two equivalent C(1), two equivalent C(5), two equivalent C(6), and two equivalent C(7) atoms. In the third Ho site, Ho(3) is bonded in a 9-coordinate geometry to two equivalent C(3), two equivalent C(4), two equivalent C(7), and three equivalent C(5) atoms. In the fourth Ho site, Ho(4) is bonded in a 5-coordinate geometry to one C(2), two equivalent C(3), and two equivalent C(7) atoms. There are two inequivalent Ru sites. In the first Ru site, Ru(1) is bonded in a distorted trigonal planar geometry to one C(6) and two equivalent C(2) atoms. In the second Ru site, Ru(2) is bonded in a distorted linear geometry to two equivalent C(3) and two equivalent C(7) atoms. There are seven inequivalent C sites. In the first C site, C(1) is bonded in a 7-coordinate geometry to two equivalent Ho(1), four equivalent Ho(2), and one C(6) atom. In the second C site, C(2) is bonded to two equivalent Ho(1), two equivalent Ho(4), and two equivalent Ru(1) atoms to form CHo4Ru2 octahedra that share corners with two equivalent C(6)Ho4RuC octahedra, corners with four equivalent C(3)Ho4RuC octahedra, and edges with two equivalent C(2)Ho4Ru2 octahedra. The corner-sharing octahedral tilt angles range from 53-73°. In the third C site, C(3) is bonded to two equivalent Ho(3), two equivalent Ho(4), one Ru(2), and one C(4) atom to form CHo4RuC octahedra that share  a cornercorner with one Ho(1)C6 octahedra,  a cornercorner with one C(3)Ho4RuC octahedra, corners with two equivalent C(2)Ho4Ru2 octahedra, corners with four equivalent C(5)Ho5C octahedra,  an edgeedge with one C(5)Ho5C octahedra, and edges with two equivalent C(3)Ho4RuC octahedra. The corner-sharing octahedral tilt angles range from 0-73°. In the fourth C site, C(4) is bonded in a 5-coordinate geometry to one Ho(1), one Ho(2), two equivalent Ho(3), and one C(3) atom. In the fifth C site, C(5) is bonded to two equivalent Ho(2), three equivalent Ho(3), and one C(7) atom to form CHo5C octahedra that share corners with two equivalent C(6)Ho4RuC octahedra, corners with four equivalent C(3)Ho4RuC octahedra,  an edgeedge with one C(3)Ho4RuC octahedra,  an edgeedge with one C(6)Ho4RuC octahedra, and edges with four equivalent C(5)Ho5C octahedra. The corner-sharing octahedral tilt angles range from 15-69°. In the sixth C site, C(6) is bonded to four equivalent Ho(2), one Ru(1), and one C(1) atom to form distorted CHo4RuC octahedra that share corners with two equivalent Ho(1)C6 octahedra, corners with two equivalent C(2)Ho4Ru2 octahedra, corners with four equivalent C(5)Ho5C octahedra, edges with two equivalent C(6)Ho4RuC octahedra, and edges with two equivalent C(5)Ho5C octahedra. The corner-sharing octahedral tilt angles range from 15-53°. In the seventh C site, C(7) is bonded in a 8-coordinate geometry to two equivalent Ho(2), two equivalent Ho(3), two equivalent Ho(4), one Ru(2), and one C(5) atom. is represented by the CIF file [CIF]
data_Ho7Ru2C11
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.427
_cell_length_b   8.436
_cell_length_c   19.834
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   101.720
_symmetry_Int_Tables_number   1
_cell_volume   561.474
_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
  Ho  Ho0  1  0.897  0.795  0.250  1.0
  Ho  Ho1  1  0.103  0.205  0.750  1.0
  Ho  Ho2  1  0.278  0.557  0.655  1.0
  Ho  Ho3  1  0.722  0.443  0.345  1.0
  Ho  Ho4  1  0.722  0.443  0.155  1.0
  Ho  Ho5  1  0.278  0.557  0.845  1.0
  Ho  Ho6  1  0.338  0.677  0.019  1.0
  Ho  Ho7  1  0.662  0.323  0.981  1.0
  Ho  Ho8  1  0.662  0.323  0.519  1.0
  Ho  Ho9  1  0.338  0.677  0.481  1.0
  Ho  Ho10  1  0.523  0.045  0.127  1.0
  Ho  Ho11  1  0.477  0.955  0.873  1.0
  Ho  Ho12  1  0.477  0.955  0.627  1.0
  Ho  Ho13  1  0.523  0.045  0.373  1.0
  Ru  Ru14  1  0.081  0.162  0.250  1.0
  Ru  Ru15  1  0.919  0.838  0.750  1.0
  Ru  Ru16  1  0.000  0.000  0.000  1.0
  Ru  Ru17  1  0.000  0.000  0.500  1.0
  C  C18  1  0.279  0.558  0.250  1.0
  C  C19  1  0.721  0.442  0.750  1.0
  C  C20  1  0.503  0.007  0.250  1.0
  C  C21  1  0.497  0.993  0.750  1.0
  C  C22  1  0.074  0.148  0.579  1.0
  C  C23  1  0.926  0.852  0.421  1.0
  C  C24  1  0.926  0.852  0.079  1.0
  C  C25  1  0.074  0.148  0.921  1.0
  C  C26  1  0.133  0.266  0.623  1.0
  C  C27  1  0.867  0.734  0.377  1.0
  C  C28  1  0.867  0.734  0.123  1.0
  C  C29  1  0.133  0.266  0.877  1.0
  C  C30  1  0.206  0.412  0.063  1.0
  C  C31  1  0.794  0.588  0.937  1.0
  C  C32  1  0.794  0.588  0.563  1.0
  C  C33  1  0.206  0.412  0.437  1.0
  C  C34  1  0.199  0.397  0.250  1.0
  C  C35  1  0.801  0.603  0.750  1.0
  C  C36  1  0.127  0.254  0.084  1.0
  C  C37  1  0.873  0.746  0.916  1.0
  C  C38  1  0.873  0.746  0.584  1.0
  C  C39  1  0.127  0.254  0.416  1.0
[/CIF]
.