data_HfMnAs
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.56
_cell_length_b   3.56
_cell_length_c   4.94
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   HfMnAs
_chemical_formula_sum   'Hf1 Mn1 As1'
_cell_volume   54.06
_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
  Hf  Hf1  1  0.78  0.03  0.58  1.0
  Mn  Mn2  1  0.0  0.0  0.52  1.0
  As  As0  1  1.0  0.05  0.77  1.0

data_HfMnAs
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.56
_cell_length_b   3.56
_cell_length_c   4.94
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   HfMnAs
_chemical_formula_sum   'Hf1 Mn1 As1'
_cell_volume   54.06
_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
  Hf  Hf0  1  0.78  0.03  0.58  1.0
  Mn  Mn1  1  0.0  0.0  0.52  1.0
  As  As2  1  1.0  0.05  0.77  1.0

Hf Mn As
HfMnAs crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one HfMnAs cluster. Hf(1) is bonded in a 2-coordinate geometry to one Mn(1) and one As(1) atom. The Hf(1)-Mn(1) bond length is 0.89 Å. The Hf(1)-As(1) bond length is 1.19 Å. Mn(1) is bonded in a 2-coordinate geometry to one Hf(1) and one As(1) atom. The Mn(1)-As(1) bond length is 1.22 Å. As(1) is bonded in a 2-coordinate geometry to one Hf(1) and one Mn(1) atom.