data_RuW5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.2
_cell_length_b   5.2
_cell_length_c   5.2
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   RuW5
_chemical_formula_sum   'Ru1 W5'
_cell_volume   99.57
_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
  Ru  Ru0  1  0.0  0.0  0.0  1.0
  W  W1  1  0.59  0.77  0.77  1.0
  W  W2  1  0.84  0.84  0.84  1.0
  W  W3  1  0.77  0.59  0.77  1.0
  W  W4  1  0.77  0.77  0.59  1.0
  W  W5  1  0.59  0.59  0.59  1.0

data_RuW5
_symmetry_space_group_name_H-M   R3m
_cell_length_a   5.2
_cell_length_b   5.2
_cell_length_c   12.74
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   RuW5
_chemical_formula_sum   'Ru3 W15'
_cell_volume   298.7
_cell_formula_units_Z   3
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-y, x-y, z'
  3  '-x+y, -x, z'
  4  '-y, -x, z'
  5  '-x+y, y, z'
  6  'x, x-y, z'
  7  'x+1/3, y+2/3, z+2/3'
  8  '-y+1/3, x-y+2/3, z+2/3'
  9  '-x+y+1/3, -x+2/3, z+2/3'
  10  '-y+1/3, -x+2/3, z+2/3'
  11  '-x+y+1/3, y+2/3, z+2/3'
  12  'x+1/3, x-y+2/3, z+2/3'
  13  'x+2/3, y+1/3, z+1/3'
  14  '-y+2/3, x-y+1/3, z+1/3'
  15  '-x+y+2/3, -x+1/3, z+1/3'
  16  '-y+2/3, -x+1/3, z+1/3'
  17  '-x+y+2/3, y+1/3, z+1/3'
  18  'x+2/3, x-y+1/3, z+1/3'
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
  Ru  Ru0  3  0.0  0.0  0.0  1.0
  W  W1  9  0.12  0.06  0.29  1.0
  W  W2  3  0.0  0.0  0.16  1.0
  W  W3  3  0.0  0.0  0.41  1.0

Ru W W W W W
W5Ru crystallizes in the trigonal R3m space group. There are three inequivalent W sites. In the first W site, W(1) is bonded in a 5-coordinate geometry to one W(2), one W(3), two equivalent W(1), and one Ru(1) atom. The W(1)-W(2) bond length is 1.76 Å. The W(1)-W(3) bond length is 1.57 Å. Both W(1)-W(1) bond lengths are 0.91 Å. The W(1)-Ru(1) bond length is 2.54 Å. In the second W site, W(2) is bonded in a distorted single-bond geometry to three equivalent W(1) and one Ru(1) atom. The W(2)-Ru(1) bond length is 2.05 Å. In the third W site, W(3) is bonded in a 3-coordinate geometry to three equivalent W(1) atoms. Ru(1) is bonded in a distorted tetrahedral geometry to one W(2) and three equivalent W(1) atoms.