data_LaTaRu2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.82
_cell_length_b   4.82
_cell_length_c   3.24
_cell_angle_alpha   91.79
_cell_angle_beta   91.79
_cell_angle_gamma   91.59
_symmetry_Int_Tables_number   1
_chemical_formula_structural   LaTaRu2
_chemical_formula_sum   'La1 Ta1 Ru2'
_cell_volume   75.05
_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
  La  La0  1  0.0  0.0  0.0  1.0
  Ta  Ta3  1  0.36  0.0  0.0  1.0
  Ru  Ru1  1  0.61  0.73  0.62  1.0
  Ru  Ru2  1  0.61  0.27  0.62  1.0

data_LaTaRu2
_symmetry_space_group_name_H-M   Pm
_cell_length_a   3.24
_cell_length_b   4.82
_cell_length_c   4.82
_cell_angle_alpha   90.0
_cell_angle_beta   91.79
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   6
_chemical_formula_structural   LaTaRu2
_chemical_formula_sum   'La1 Ta1 Ru2'
_cell_volume   75.11
_cell_formula_units_Z   1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '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
  La  La0  1  0.0  0.0  0.0  1.0
  Ta  Ta1  1  0.0  0.0  0.36  1.0
  Ru  Ru2  2  0.62  0.27  0.61  1.0

La Ta Ru Ru
LaTaRu2 crystallizes in the monoclinic Pm space group. La(1) is bonded in a 3-coordinate geometry to one Ta(1) and four equivalent Ru(1) atoms. The La(1)-Ta(1) bond length is 1.73 Å. There are two shorter (2.59 Å) and two longer (3.09 Å) La(1)-Ru(1) bond lengths. Ta(1) is bonded in a 5-coordinate geometry to one La(1) and four equivalent Ru(1) atoms. There are two shorter (2.19 Å) and two longer (2.65 Å) Ta(1)-Ru(1) bond lengths. Ru(1) is bonded in a 5-coordinate geometry to two equivalent La(1), two equivalent Ta(1), and one Ru(1) atom. The Ru(1)-Ru(1) bond length is 2.19 Å.