The crystal structure described by HfRuAs crystallizes in the hexagonal P-62m space group. Hf(1) is bonded in a 11-coordinate geometry to six equivalent Ru(1), one As(2), and four equivalent As(1) atoms. Ru(1) is bonded to six equivalent Hf(1), two equivalent Ru(1), two equivalent As(1), and two equivalent As(2) atoms to form a mixture of distorted corner, edge, and face-sharing RuHf6As4Ru2 cuboctahedra. There are two inequivalent As sites. In the first As site, As(1) is bonded in a 9-coordinate geometry to six equivalent Hf(1) and three equivalent Ru(1) atoms. In the second As site, As(2) is bonded in a 9-coordinate geometry to three equivalent Hf(1) and six equivalent Ru(1) atoms. is represented by the CIF file [CIF]
data_HfAsRu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.888
_cell_length_b   6.549
_cell_length_c   6.549
_cell_angle_alpha   120.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   144.433
_cell_formula_units_Z   3
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
  Hf  Hf0  1  0.500  0.581  0.000  1.0
  Hf  Hf1  1  0.500  0.419  0.419  1.0
  Hf  Hf2  1  0.500  1.000  0.581  1.0
  As  As3  1  0.000  0.333  0.667  1.0
  As  As4  1  0.000  0.667  0.333  1.0
  As  As5  1  0.500  0.000  0.000  1.0
  Ru  Ru6  1  0.000  0.246  0.000  1.0
  Ru  Ru7  1  0.000  0.754  0.754  1.0
  Ru  Ru8  1  0.000  1.000  0.246  1.0
[/CIF]
.
The crystal structure described by HfRuAs crystallizes in the hexagonal P-62m space group. Hf(1) is bonded in a 11-coordinate geometry to six equivalent Ru(1), one As(2), and four equivalent As(1) atoms. Ru(1) is bonded to six equivalent Hf(1), two equivalent Ru(1), two equivalent As(1), and two equivalent As(2) atoms to form a mixture of distorted corner, edge, and face-sharing RuHf6As4Ru2 cuboctahedra. There are two inequivalent As sites. In the first As site, As(1) is bonded in a 9-coordinate geometry to six equivalent Hf(1) and three equivalent Ru(1) atoms. In the second As site, As(2) is bonded in a 9-coordinate geometry to three equivalent Hf(1) and six equivalent Ru(1) atoms. is represented by the CIF file [CIF]
data_HfAsRu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.888
_cell_length_b   6.549
_cell_length_c   6.549
_cell_angle_alpha   120.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   144.433
_cell_formula_units_Z   3
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
  Hf  Hf0  1  0.500  0.581  0.000  1.0
  Hf  Hf1  1  0.500  0.419  0.419  1.0
  Hf  Hf2  1  0.500  1.000  0.581  1.0
  As  As3  1  0.000  0.333  0.667  1.0
  As  As4  1  0.000  0.667  0.333  1.0
  As  As5  1  0.500  0.000  0.000  1.0
  Ru  Ru6  1  0.000  0.246  0.000  1.0
  Ru  Ru7  1  0.000  0.754  0.754  1.0
  Ru  Ru8  1  0.000  1.000  0.246  1.0
[/CIF]
.