data_LaZrP2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.88
_cell_length_b   4.88
_cell_length_c   4.88
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   LaZrP2
_chemical_formula_sum   'La1 Zr1 P2'
_cell_volume   81.99
_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
  La  La0  1  0.45  0.45  0.45  1.0
  Zr  Zr3  1  0.0  0.0  0.0  1.0
  P  P1  1  0.17  0.17  0.17  1.0
  P  P2  1  0.72  0.72  0.72  1.0

data_LaZrP2
_symmetry_space_group_name_H-M   R3m
_cell_length_a   4.88
_cell_length_b   4.88
_cell_length_c   11.94
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   LaZrP2
_chemical_formula_sum   'La3 Zr3 P6'
_cell_volume   245.97
_cell_formula_units_Z   3
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-y, x-y, z'
  3  '-x+y, -x, z'
  4  '-y, -x, z'
  5  '-x+y, y, z'
  6  'x, x-y, z'
  7  'x+1/3, y+2/3, z+2/3'
  8  '-y+1/3, x-y+2/3, z+2/3'
  9  '-x+y+1/3, -x+2/3, z+2/3'
  10  '-y+1/3, -x+2/3, z+2/3'
  11  '-x+y+1/3, y+2/3, z+2/3'
  12  'x+1/3, x-y+2/3, z+2/3'
  13  'x+2/3, y+1/3, z+1/3'
  14  '-y+2/3, x-y+1/3, z+1/3'
  15  '-x+y+2/3, -x+1/3, z+1/3'
  16  '-y+2/3, -x+1/3, z+1/3'
  17  '-x+y+2/3, y+1/3, z+1/3'
  18  'x+2/3, x-y+1/3, z+1/3'
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
  La  La0  3  0.0  0.0  0.55  1.0
  Zr  Zr1  3  0.0  0.0  0.0  1.0
  P  P2  3  0.0  0.0  0.28  1.0
  P  P3  3  0.0  0.0  0.83  1.0

La Zr P P
La Zr P P 0 2 o o o 0 2 o o + 0 2 o + o 0 2 + o o 0 1 o o + 0 1 o + o 0 1 + o o 0 3 - o o 0 3 o - o 0 3 o o - 0 3 o o o 1 2 o o o 1 3 o - - 1 3 - o - 1 3 - - o 1 3 - - - 2 3 o - - 2 3 - o - 2 3 - - o 
LaZrP2 is Heusler structured and crystallizes in the trigonal R3m space group. La(1) is bonded in a 8-coordinate geometry to four equivalent P(1) and four equivalent P(2) atoms. There are three shorter (2.90 Å) and one longer (3.30 Å) La(1)-P(1) bond length. There are three shorter (2.90 Å) and one longer (3.30 Å) La(1)-P(2) bond length. Zr(1) is bonded in a distorted single-bond geometry to one P(1) and four equivalent P(2) atoms. The Zr(1)-P(1) bond length is 2.06 Å. There are three shorter (2.90 Å) and one longer (3.30 Å) Zr(1)-P(2) bond length. There are two inequivalent P sites. In the first P site, P(1) is bonded in a distorted single-bond geometry to four equivalent La(1) and one Zr(1) atom. In the second P site, P(2) is bonded in a body-centered cubic geometry to four equivalent La(1) and four equivalent Zr(1) atoms.