data_HfGeP2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.71
_cell_length_b   3.71
_cell_length_c   5.39
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   HfGeP2
_chemical_formula_sum   'Hf1 Ge1 P2'
_cell_volume   74.34
_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  0.86  0.86  0.7  1.0
  Ge  Ge0  1  0.0  0.0  0.09  1.0
  P  P2  1  0.0  0.0  0.7  1.0
  P  P3  1  0.86  0.86  0.0  1.0

data_HfGeP2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.25
_cell_length_b   5.25
_cell_length_c   5.39
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   HfGeP2
_chemical_formula_sum   'Hf2 Ge2 P4'
_cell_volume   148.68
_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
  Hf  Hf0  2  0.36  0.5  0.7  1.0
  Ge  Ge1  2  0.0  0.0  0.09  1.0
  P  P2  2  0.0  0.0  0.7  1.0
  P  P3  2  0.36  0.5  0.0  1.0

Hf Ge P P
HfGeP2 crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two HfGeP2 clusters. Hf(1) is bonded in a distorted single-bond geometry to one P(1) and one P(2) atom. The Hf(1)-P(1) bond length is 0.76 Å. The Hf(1)-P(2) bond length is 1.64 Å. Ge(1) is bonded in a single-bond geometry to one P(2) atom. The Ge(1)-P(2) bond length is 0.88 Å. There are two inequivalent P sites. In the first P site, P(1) is bonded in a single-bond geometry to one Hf(1) atom. In the second P site, P(2) is bonded in a bent 120 degrees geometry to one Hf(1) and one Ge(1) atom.