data_BaAsRu2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.76
_cell_length_b   4.76
_cell_length_c   3.18
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   95.06
_symmetry_Int_Tables_number   1
_chemical_formula_structural   BaAsRu2
_chemical_formula_sum   'Ba1 As1 Ru2'
_cell_volume   71.74
_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
  Ba  Ba1  1  0.21  0.0  0.0  1.0
  As  As0  1  0.0  0.0  0.0  1.0
  Ru  Ru2  1  0.61  0.24  0.59  1.0
  Ru  Ru3  1  0.61  0.76  0.59  1.0

data_BaAsRu2
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.18
_cell_length_b   4.76
_cell_length_c   4.76
_cell_angle_alpha   95.06
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   BaAsRu2
_chemical_formula_sum   'Ba1 As1 Ru2'
_cell_volume   71.74
_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
  Ba  Ba0  1  -0.0  0.21  0.0  1.0
  As  As1  1  0.0  0.0  0.0  1.0
  Ru  Ru2  1  0.59  0.61  0.76  1.0
  Ru  Ru3  1  0.59  0.61  0.24  1.0

Ba As Ru Ru
Ba As Ru Ru 0 1 o o o 0 2 o o o 0 2 o o - 0 3 o - - 1 2 - o - 1 3 - - o 1 3 - - - 2 3 o o o 2 3 o - o 
BaRu2As crystallizes in the triclinic P1 space group. Ba(1) is bonded in a distorted single-bond geometry to two equivalent Ru(1), two equivalent Ru(2), and one As(1) atom. There is one shorter (2.48 Å) and one longer (2.82 Å) Ba(1)-Ru(1) bond length. There is one shorter (2.63 Å) and one longer (2.96 Å) Ba(1)-Ru(2) bond length. The Ba(1)-As(1) bond length is 1.02 Å. There are two inequivalent Ru sites. In the first Ru site, Ru(1) is bonded in a 2-coordinate geometry to two equivalent Ba(1) and two equivalent Ru(2) atoms. There is one shorter (2.33 Å) and one longer (2.44 Å) Ru(1)-Ru(2) bond length. In the second Ru site, Ru(2) is bonded in a 6-coordinate geometry to two equivalent Ba(1), two equivalent Ru(1), and two equivalent As(1) atoms. There is one shorter (2.48 Å) and one longer (2.82 Å) Ru(2)-As(1) bond length. As(1) is bonded in a single-bond geometry to one Ba(1) and two equivalent Ru(2) atoms.