data_KAl2Ru
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.91
_cell_length_b   4.91
_cell_length_c   3.03
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   KAl2Ru
_chemical_formula_sum   'K1 Al2 Ru1'
_cell_volume   73.18
_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
  K  K2  1  0.0  0.0  0.0  1.0
  Al  Al0  1  0.46  0.0  0.52  1.0
  Al  Al1  1  0.0  0.46  0.52  1.0
  Ru  Ru3  1  0.46  0.46  0.0  1.0

data_KAl2Ru
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.94
_cell_length_b   6.94
_cell_length_c   3.03
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   KAl2Ru
_chemical_formula_sum   'K2 Al4 Ru2'
_cell_volume   146.35
_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
  K  K0  2  0.0  0.0  0.0  1.0
  Al  Al1  4  0.23  0.23  0.52  1.0
  Ru  Ru2  2  0.46  0.0  0.0  1.0

K Al Al Ru
K Al Al Ru 0 1 - o - 0 1 - o o 0 1 o o - 0 1 o o o 0 2 o - - 0 2 o - o 0 2 o o - 0 2 o o o 0 0 o o + 0 3 o o o 1 2 o o o 1 3 o - o 1 3 o - + 1 3 o o o 1 3 o o + 1 1 o o + 2 3 - o o 2 3 - o + 2 3 o o o 2 3 o o + 2 2 o o + 3 3 o o + 
KRuAl2 is alpha iridium vanadium-derived structured and crystallizes in the monoclinic Cm space group. K(1) is bonded in a 8-coordinate geometry to eight equivalent Al(1) atoms. There are a spread of K(1)-Al(1) bond distances ranging from 2.67-3.10 Å. Ru(1) is bonded in a 8-coordinate geometry to eight equivalent Al(1) atoms. There are a spread of Ru(1)-Al(1) bond distances ranging from 2.67-3.10 Å. Al(1) is bonded in a distorted body-centered cubic geometry to four equivalent K(1) and four equivalent Ru(1) atoms.