data_AlNi2P
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.08
_cell_length_b   2.78
_cell_length_c   4.54
_cell_angle_alpha   90.0
_cell_angle_beta   112.54
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   AlNi2P
_chemical_formula_sum   'Al1 Ni2 P1'
_cell_volume   47.6
_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
  Al  Al0  1  0.0  0.0  0.0  1.0
  Ni  Ni1  1  0.17  0.0  0.1  1.0
  Ni  Ni2  1  0.04  0.39  0.0  1.0
  P  P3  1  0.13  0.39  0.1  1.0

data_AlNi2P
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.78
_cell_length_b   4.08
_cell_length_c   4.54
_cell_angle_alpha   112.54
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   AlNi2P
_chemical_formula_sum   'Al1 Ni2 P1'
_cell_volume   47.6
_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
  Al  Al0  1  0.0  0.0  0.0  1.0
  Ni  Ni1  1  0.0  0.83  0.9  1.0
  Ni  Ni2  1  0.61  0.96  0.0  1.0
  P  P3  1  0.61  0.87  0.9  1.0

Al Ni Ni P
Al Ni Ni P 0 1 o o o 2 3 o o o 
NiAlNiP crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one nial molecule and one phosphanylidynenickel molecule.