The compound described by Er5Ru2 crystallizes in the monoclinic C2/c space group. There are three inequivalent Er sites. In the first Er site, Er(1) is bonded in a 2-coordinate geometry to three equivalent Ru(1) atoms. In the second Er site, Er(3) is bonded to four equivalent Ru(1) atoms to form distorted edge-sharing ErRu4 tetrahedra. In the third Er site, Er(2) is bonded in a 3-coordinate geometry to three equivalent Ru(1) atoms. Ru(1) is bonded in a 8-coordinate geometry to two equivalent Er(3), three equivalent Er(1), and three equivalent Er(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Er5Ru2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.261
_cell_length_b   7.261
_cell_length_c   8.388
_cell_angle_alpha   96.745
_cell_angle_beta   111.916
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   350.923
_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  0.791  0.585  0.814  1.0
  Er  Er1  1  0.977  0.915  0.186  1.0
  Er  Er2  1  0.209  0.415  0.186  1.0
  Er  Er3  1  0.023  0.085  0.814  1.0
  Er  Er4  1  0.205  0.685  0.565  1.0
  Er  Er5  1  0.641  0.815  0.435  1.0
  Er  Er6  1  0.795  0.315  0.435  1.0
  Er  Er7  1  0.359  0.185  0.565  1.0
  Er  Er8  1  0.418  0.750  0.000  1.0
  Er  Er9  1  0.582  0.250  0.000  1.0
  Ru  Ru10  1  0.602  0.924  0.780  1.0
  Ru  Ru11  1  0.822  0.576  0.220  1.0
  Ru  Ru12  1  0.398  0.076  0.220  1.0
  Ru  Ru13  1  0.178  0.424  0.780  1.0
[/CIF]
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The compound described by Er5Ru2 crystallizes in the monoclinic C2/c space group. There are three inequivalent Er sites. In the first Er site, Er(1) is bonded in a 2-coordinate geometry to three equivalent Ru(1) atoms. In the second Er site, Er(3) is bonded to four equivalent Ru(1) atoms to form distorted edge-sharing ErRu4 tetrahedra. In the third Er site, Er(2) is bonded in a 3-coordinate geometry to three equivalent Ru(1) atoms. Ru(1) is bonded in a 8-coordinate geometry to two equivalent Er(3), three equivalent Er(1), and three equivalent Er(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Er5Ru2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.261
_cell_length_b   7.261
_cell_length_c   8.388
_cell_angle_alpha   96.745
_cell_angle_beta   111.916
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   350.923
_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  0.791  0.585  0.814  1.0
  Er  Er1  1  0.977  0.915  0.186  1.0
  Er  Er2  1  0.209  0.415  0.186  1.0
  Er  Er3  1  0.023  0.085  0.814  1.0
  Er  Er4  1  0.205  0.685  0.565  1.0
  Er  Er5  1  0.641  0.815  0.435  1.0
  Er  Er6  1  0.795  0.315  0.435  1.0
  Er  Er7  1  0.359  0.185  0.565  1.0
  Er  Er8  1  0.418  0.750  0.000  1.0
  Er  Er9  1  0.582  0.250  0.000  1.0
  Ru  Ru10  1  0.602  0.924  0.780  1.0
  Ru  Ru11  1  0.822  0.576  0.220  1.0
  Ru  Ru12  1  0.398  0.076  0.220  1.0
  Ru  Ru13  1  0.178  0.424  0.780  1.0
[/CIF]
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