data_Al2PRu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.72
_cell_length_b   4.72
_cell_length_c   4.72
_cell_angle_alpha   132.86
_cell_angle_beta   132.86
_cell_angle_gamma   68.87
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Al2PRu
_chemical_formula_sum   'Al2 P1 Ru1'
_cell_volume   55.29
_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
  Al  Al0  1  0.0  0.89  0.94  1.0
  Al  Al1  1  0.89  0.0  0.94  1.0
  P  P2  1  0.0  0.0  0.0  1.0
  Ru  Ru3  1  0.0  0.0  0.89  1.0

data_Al2PRu
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.33
_cell_length_b   5.33
_cell_length_c   4.72
_cell_angle_alpha   90.0
_cell_angle_beta   124.43
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Al2PRu
_chemical_formula_sum   'Al4 P2 Ru2'
_cell_volume   110.58
_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
  Al  Al0  4  0.06  0.06  0.06  1.0
  P  P1  2  0.0  0.0  0.0  1.0
  Ru  Ru2  2  0.0  0.0  0.89  1.0

Al Al P Ru
Al Al P Ru 0 2 o + + 1 2 + o + 2 3 o o - 
RuAl2P is Indium-like structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two RuAl2P clusters. Ru(1) is bonded in a 3-coordinate geometry to two equivalent Al(1) and one P(1) atom. Both Ru(1)-Al(1) bond lengths are 0.74 Å. The Ru(1)-P(1) bond length is 0.52 Å. Al(1) is bonded in a single-bond geometry to one Ru(1) and one P(1) atom. The Al(1)-P(1) bond length is 0.41 Å. P(1) is bonded in a distorted L-shaped geometry to one Ru(1) and two equivalent Al(1) atoms.