data_FeSiRu2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.95
_cell_length_b   4.95
_cell_length_c   4.95
_cell_angle_alpha   146.79
_cell_angle_beta   129.1
_cell_angle_gamma   62.13
_symmetry_Int_Tables_number   1
_chemical_formula_structural   FeSiRu2
_chemical_formula_sum   'Fe1 Si1 Ru2'
_cell_volume   51.09
_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
  Fe  Fe0  1  0.0  0.0  0.24  1.0
  Si  Si3  1  0.0  0.0  0.0  1.0
  Ru  Ru1  1  0.42  0.0  0.89  1.0
  Ru  Ru2  1  0.0  0.13  0.35  1.0

data_FeSiRu2
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.83
_cell_length_b   4.26
_cell_length_c   4.95
_cell_angle_alpha   115.45
_cell_angle_beta   106.6
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   FeSiRu2
_chemical_formula_sum   'Fe1 Si1 Ru2'
_cell_volume   51.09
_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
  Fe  Fe0  1  0.76  0.76  0.76  1.0
  Si  Si1  1  0.0  0.0  0.0  1.0
  Ru  Ru2  1  0.53  0.11  0.53  1.0
  Ru  Ru3  1  0.65  0.77  0.77  1.0

Fe Si Ru Ru
Ru2FeSi crystallizes in the triclinic P1 space group. There are two inequivalent Ru sites. In the first Ru site, Ru(1) is bonded in a 9-coordinate geometry to two equivalent Ru(1), two equivalent Ru(2), two equivalent Fe(1), and three equivalent Si(1) atoms. Both Ru(1)-Ru(1) bond lengths are 2.83 Å. There is one shorter (2.23 Å) and one longer (2.52 Å) Ru(1)-Ru(2) bond length. There is one shorter (2.25 Å) and one longer (2.48 Å) Ru(1)-Fe(1) bond length. There are a spread of Ru(1)-Si(1) bond distances ranging from 2.45-3.12 Å. In the second Ru site, Ru(2) is bonded in a single-bond geometry to two equivalent Ru(1), one Fe(1), and two equivalent Si(1) atoms. The Ru(2)-Fe(1) bond length is 0.35 Å. There is one shorter (1.27 Å) and one longer (2.40 Å) Ru(2)-Si(1) bond length. Fe(1) is bonded in a single-bond geometry to one Ru(2), two equivalent Ru(1), and one Si(1) atom. The Fe(1)-Si(1) bond length is 1.20 Å. Si(1) is bonded in a 4-coordinate geometry to two equivalent Ru(2), three equivalent Ru(1), and one Fe(1) atom.