The material structure described by Ce16Ru9 crystallizes in the trigonal R-3m space group. There are seven inequivalent Ce sites. In the first Ce site, Ce(1) is bonded in a 6-coordinate geometry to one Ce(6), two equivalent Ru(1), two equivalent Ru(2), and two equivalent Ru(3) atoms. In the second Ce site, Ce(2) is bonded in a 4-coordinate geometry to one Ce(7), one Ru(2), one Ru(3), and two equivalent Ru(1) atoms. In the third Ce site, Ce(3) is bonded to one Ce(6), two equivalent Ru(2), and two equivalent Ru(3) atoms to form a mixture of distorted corner and edge-sharing CeCeRu4 trigonal pyramids. In the fourth Ce site, Ce(4) is bonded in a 4-coordinate geometry to one Ce(7), two equivalent Ru(1), and two equivalent Ru(2) atoms. In the fifth Ce site, Ce(5) is bonded in a 3-coordinate geometry to one Ru(2), two equivalent Ru(1), and two equivalent Ru(3) atoms. In the sixth Ce site, Ce(6) is bonded in a 18-coordinate geometry to six equivalent Ce(1), six equivalent Ce(3), and six equivalent Ru(2) atoms. In the seventh Ce site, Ce(7) is bonded in a 18-coordinate geometry to six equivalent Ce(2), six equivalent Ce(4), and six equivalent Ru(1) atoms. There are three inequivalent Ru sites. In the first Ru site, Ru(1) is bonded in a 8-coordinate geometry to one Ce(7), two equivalent Ce(1), two equivalent Ce(2), two equivalent Ce(4), and two equivalent Ce(5) atoms. In the second Ru site, Ru(2) is bonded in a 9-coordinate geometry to one Ce(2), one Ce(5), one Ce(6), two equivalent Ce(1), two equivalent Ce(3), and two equivalent Ce(4) atoms. In the third Ru site, Ru(3) is bonded in a 7-coordinate geometry to one Ce(2), two equivalent Ce(1), two equivalent Ce(3), and two equivalent Ce(5) atoms. is represented by the CIF file [CIF]
data_Ce16Ru9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.831
_cell_length_b   10.831
_cell_length_c   10.831
_cell_angle_alpha   77.116
_cell_angle_beta   77.116
_cell_angle_gamma   77.116
_symmetry_Int_Tables_number   1
_cell_volume   1187.128
_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
  Ce  Ce0  1  0.795  0.500  0.205  1.0
  Ce  Ce1  1  0.797  0.050  0.797  1.0
  Ce  Ce2  1  0.804  0.532  0.532  1.0
  Ce  Ce3  1  0.797  0.797  0.050  1.0
  Ce  Ce4  1  0.281  0.000  0.719  1.0
  Ce  Ce5  1  0.281  0.719  0.000  1.0
  Ce  Ce6  1  0.500  0.795  0.205  1.0
  Ce  Ce7  1  0.000  0.281  0.719  1.0
  Ce  Ce8  1  0.196  0.468  0.468  1.0
  Ce  Ce9  1  0.532  0.532  0.804  1.0
  Ce  Ce10  1  0.050  0.797  0.797  1.0
  Ce  Ce11  1  0.000  0.719  0.281  1.0
  Ce  Ce12  1  0.205  0.795  0.500  1.0
  Ce  Ce13  1  0.719  0.000  0.281  1.0
  Ce  Ce14  1  0.468  0.468  0.196  1.0
  Ce  Ce15  1  0.795  0.205  0.500  1.0
  Ce  Ce16  1  0.568  0.843  0.843  1.0
  Ce  Ce17  1  0.500  0.205  0.795  1.0
  Ce  Ce18  1  0.719  0.281  0.000  1.0
  Ce  Ce19  1  0.157  0.157  0.432  1.0
  Ce  Ce20  1  0.532  0.804  0.532  1.0
  Ce  Ce21  1  0.950  0.203  0.203  1.0
  Ce  Ce22  1  0.843  0.843  0.568  1.0
  Ce  Ce23  1  0.432  0.157  0.157  1.0
  Ce  Ce24  1  0.205  0.500  0.795  1.0
  Ce  Ce25  1  0.203  0.950  0.203  1.0
  Ce  Ce26  1  0.468  0.196  0.468  1.0
  Ce  Ce27  1  0.500  0.500  0.500  1.0
  Ce  Ce28  1  0.157  0.432  0.157  1.0
  Ce  Ce29  1  0.203  0.203  0.950  1.0
  Ce  Ce30  1  0.000  0.000  0.000  1.0
  Ce  Ce31  1  0.843  0.568  0.843  1.0
  Ru  Ru32  1  0.988  0.364  0.988  1.0
  Ru  Ru33  1  0.351  0.728  0.728  1.0
  Ru  Ru34  1  0.004  0.624  0.624  1.0
  Ru  Ru35  1  0.376  0.996  0.376  1.0
  Ru  Ru36  1  0.272  0.649  0.272  1.0
  Ru  Ru37  1  0.728  0.351  0.728  1.0
  Ru  Ru38  1  0.272  0.272  0.649  1.0
  Ru  Ru39  1  0.996  0.376  0.376  1.0
  Ru  Ru40  1  0.649  0.272  0.272  1.0
  Ru  Ru41  1  0.012  0.636  0.012  1.0
  Ru  Ru42  1  0.624  0.624  0.004  1.0
  Ru  Ru43  1  0.376  0.376  0.996  1.0
  Ru  Ru44  1  0.364  0.988  0.988  1.0
  Ru  Ru45  1  0.728  0.728  0.351  1.0
  Ru  Ru46  1  0.988  0.988  0.364  1.0
  Ru  Ru47  1  0.012  0.012  0.636  1.0
  Ru  Ru48  1  0.636  0.012  0.012  1.0
  Ru  Ru49  1  0.624  0.004  0.624  1.0
[/CIF]
.
The material structure described by Ce16Ru9 crystallizes in the trigonal R-3m space group. There are seven inequivalent Ce sites. In the first Ce site, Ce(1) is bonded in a 6-coordinate geometry to one Ce(6), two equivalent Ru(1), two equivalent Ru(2), and two equivalent Ru(3) atoms. In the second Ce site, Ce(2) is bonded in a 4-coordinate geometry to one Ce(7), one Ru(2), one Ru(3), and two equivalent Ru(1) atoms. In the third Ce site, Ce(3) is bonded to one Ce(6), two equivalent Ru(2), and two equivalent Ru(3) atoms to form a mixture of distorted corner and edge-sharing CeCeRu4 trigonal pyramids. In the fourth Ce site, Ce(4) is bonded in a 4-coordinate geometry to one Ce(7), two equivalent Ru(1), and two equivalent Ru(2) atoms. In the fifth Ce site, Ce(5) is bonded in a 3-coordinate geometry to one Ru(2), two equivalent Ru(1), and two equivalent Ru(3) atoms. In the sixth Ce site, Ce(6) is bonded in a 18-coordinate geometry to six equivalent Ce(1), six equivalent Ce(3), and six equivalent Ru(2) atoms. In the seventh Ce site, Ce(7) is bonded in a 18-coordinate geometry to six equivalent Ce(2), six equivalent Ce(4), and six equivalent Ru(1) atoms. There are three inequivalent Ru sites. In the first Ru site, Ru(1) is bonded in a 8-coordinate geometry to one Ce(7), two equivalent Ce(1), two equivalent Ce(2), two equivalent Ce(4), and two equivalent Ce(5) atoms. In the second Ru site, Ru(2) is bonded in a 9-coordinate geometry to one Ce(2), one Ce(5), one Ce(6), two equivalent Ce(1), two equivalent Ce(3), and two equivalent Ce(4) atoms. In the third Ru site, Ru(3) is bonded in a 7-coordinate geometry to one Ce(2), two equivalent Ce(1), two equivalent Ce(3), and two equivalent Ce(5) atoms. is represented by the CIF file [CIF]
data_Ce16Ru9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.831
_cell_length_b   10.831
_cell_length_c   10.831
_cell_angle_alpha   77.116
_cell_angle_beta   77.116
_cell_angle_gamma   77.116
_symmetry_Int_Tables_number   1
_cell_volume   1187.128
_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
  Ce  Ce0  1  0.795  0.500  0.205  1.0
  Ce  Ce1  1  0.797  0.050  0.797  1.0
  Ce  Ce2  1  0.804  0.532  0.532  1.0
  Ce  Ce3  1  0.797  0.797  0.050  1.0
  Ce  Ce4  1  0.281  0.000  0.719  1.0
  Ce  Ce5  1  0.281  0.719  0.000  1.0
  Ce  Ce6  1  0.500  0.795  0.205  1.0
  Ce  Ce7  1  0.000  0.281  0.719  1.0
  Ce  Ce8  1  0.196  0.468  0.468  1.0
  Ce  Ce9  1  0.532  0.532  0.804  1.0
  Ce  Ce10  1  0.050  0.797  0.797  1.0
  Ce  Ce11  1  0.000  0.719  0.281  1.0
  Ce  Ce12  1  0.205  0.795  0.500  1.0
  Ce  Ce13  1  0.719  0.000  0.281  1.0
  Ce  Ce14  1  0.468  0.468  0.196  1.0
  Ce  Ce15  1  0.795  0.205  0.500  1.0
  Ce  Ce16  1  0.568  0.843  0.843  1.0
  Ce  Ce17  1  0.500  0.205  0.795  1.0
  Ce  Ce18  1  0.719  0.281  0.000  1.0
  Ce  Ce19  1  0.157  0.157  0.432  1.0
  Ce  Ce20  1  0.532  0.804  0.532  1.0
  Ce  Ce21  1  0.950  0.203  0.203  1.0
  Ce  Ce22  1  0.843  0.843  0.568  1.0
  Ce  Ce23  1  0.432  0.157  0.157  1.0
  Ce  Ce24  1  0.205  0.500  0.795  1.0
  Ce  Ce25  1  0.203  0.950  0.203  1.0
  Ce  Ce26  1  0.468  0.196  0.468  1.0
  Ce  Ce27  1  0.500  0.500  0.500  1.0
  Ce  Ce28  1  0.157  0.432  0.157  1.0
  Ce  Ce29  1  0.203  0.203  0.950  1.0
  Ce  Ce30  1  0.000  0.000  0.000  1.0
  Ce  Ce31  1  0.843  0.568  0.843  1.0
  Ru  Ru32  1  0.988  0.364  0.988  1.0
  Ru  Ru33  1  0.351  0.728  0.728  1.0
  Ru  Ru34  1  0.004  0.624  0.624  1.0
  Ru  Ru35  1  0.376  0.996  0.376  1.0
  Ru  Ru36  1  0.272  0.649  0.272  1.0
  Ru  Ru37  1  0.728  0.351  0.728  1.0
  Ru  Ru38  1  0.272  0.272  0.649  1.0
  Ru  Ru39  1  0.996  0.376  0.376  1.0
  Ru  Ru40  1  0.649  0.272  0.272  1.0
  Ru  Ru41  1  0.012  0.636  0.012  1.0
  Ru  Ru42  1  0.624  0.624  0.004  1.0
  Ru  Ru43  1  0.376  0.376  0.996  1.0
  Ru  Ru44  1  0.364  0.988  0.988  1.0
  Ru  Ru45  1  0.728  0.728  0.351  1.0
  Ru  Ru46  1  0.988  0.988  0.364  1.0
  Ru  Ru47  1  0.012  0.012  0.636  1.0
  Ru  Ru48  1  0.636  0.012  0.012  1.0
  Ru  Ru49  1  0.624  0.004  0.624  1.0
[/CIF]
.