data_HfAlP2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.39
_cell_length_b   4.39
_cell_length_c   3.32
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   HfAlP2
_chemical_formula_sum   'Hf1 Al1 P2'
_cell_volume   63.95
_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  0.19  0.19  0.0  1.0
  Al  Al0  1  0.0  0.0  0.0  1.0
  P  P2  1  0.19  0.0  0.66  1.0
  P  P3  1  0.0  0.19  0.66  1.0

data_HfAlP2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.21
_cell_length_b   6.21
_cell_length_c   3.32
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   HfAlP2
_chemical_formula_sum   'Hf2 Al2 P4'
_cell_volume   127.9
_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  0.19  0.0  0.0  1.0
  Al  Al1  2  0.0  0.0  0.0  1.0
  P  P2  4  0.1  0.1  0.66  1.0

Hf Al P P
HfAlP2 crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two HfAlP2 clusters. Hf(1) is bonded in a 3-coordinate geometry to one Al(1) and two equivalent P(1) atoms. The Hf(1)-Al(1) bond length is 1.20 Å. Both Hf(1)-P(1) bond lengths are 1.41 Å. Al(1) is bonded in a 3-coordinate geometry to one Hf(1) and two equivalent P(1) atoms. Both Al(1)-P(1) bond lengths are 1.41 Å. P(1) is bonded in a 3-coordinate geometry to one Hf(1), one Al(1), and one P(1) atom. The P(1)-P(1) bond length is 1.20 Å.