data_SrCuRu2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.19
_cell_length_b   3.19
_cell_length_c   7.22
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SrCuRu2
_chemical_formula_sum   'Sr1 Cu1 Ru2'
_cell_volume   73.48
_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
  Sr  Sr3  1  0.59  0.59  0.64  1.0
  Cu  Cu0  1  0.0  0.0  0.87  1.0
  Ru  Ru1  1  0.59  0.59  0.04  1.0
  Ru  Ru2  1  0.0  0.0  0.29  1.0

data_SrCuRu2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.51
_cell_length_b   4.51
_cell_length_c   7.22
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   SrCuRu2
_chemical_formula_sum   'Sr2 Cu2 Ru4'
_cell_volume   146.97
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  'x, -y, z'
  3  'x+1/2, y+1/2, z'
  4  'x+1/2, -y+1/2, 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
  Sr  Sr0  2  0.09  0.5  0.64  1.0
  Cu  Cu1  2  0.0  0.0  0.87  1.0
  Ru  Ru2  2  0.0  0.0  0.29  1.0
  Ru  Ru3  2  0.09  0.5  0.04  1.0

Sr Cu Ru Ru
SrRu2Cu crystallizes in the monoclinic Cm space group. Sr(1) is bonded in a 1-coordinate geometry to four equivalent Ru(2) and one Cu(1) atom. There are a spread of Sr(1)-Ru(2) bond distances ranging from 3.11-3.68 Å. The Sr(1)-Cu(1) bond length is 2.47 Å. There are two inequivalent Ru sites. In the first Ru site, Ru(1) is bonded in a 1-coordinate geometry to four equivalent Ru(2) and one Cu(1) atom. There are a spread of Ru(1)-Ru(2) bond distances ranging from 2.58-3.24 Å. The Ru(1)-Cu(1) bond length is 2.20 Å. In the second Ru site, Ru(2) is bonded in a 13-coordinate geometry to four equivalent Sr(1), four equivalent Ru(1), four equivalent Ru(2), and one Cu(1) atom. All Ru(2)-Ru(2) bond lengths are 3.19 Å. The Ru(2)-Cu(1) bond length is 3.05 Å. Cu(1) is bonded in a 2-coordinate geometry to one Sr(1), one Ru(1), and one Ru(2) atom.