data_YPPb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.59
_cell_length_b   4.59
_cell_length_c   4.51
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   YPPb
_chemical_formula_sum   'Y1 P1 Pb1'
_cell_volume   82.37
_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
  Y  Y2  1  0.0  0.65  0.6  1.0
  P  P0  1  0.0  0.0  0.02  1.0
  Pb  Pb1  1  0.3  0.33  0.41  1.0

data_YPPb
_symmetry_space_group_name_H-M   P1
_cell_length_a   4.51
_cell_length_b   4.59
_cell_length_c   4.59
_cell_angle_alpha   120.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   YPPb
_chemical_formula_sum   'Y1 P1 Pb1'
_cell_volume   82.37
_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
  Y  Y0  1  0.6  -0.0  0.65  1.0
  P  P1  1  0.02  0.0  0.0  1.0
  Pb  Pb2  1  0.41  0.3  0.33  1.0

Y P Pb
Y P Pb 0 2 - o o 0 2 o + o 0 2 o o o 0 1 o + o 0 1 o + + 1 2 o o o 
YPbP crystallizes in the triclinic P1 space group. Y(1) is bonded in a 6-coordinate geometry to three equivalent Pb(1) and three equivalent P(1) atoms. There are a spread of Y(1)-Pb(1) bond distances ranging from 2.60-2.93 Å. There are a spread of Y(1)-P(1) bond distances ranging from 2.48-3.53 Å. Pb(1) is bonded in a 4-coordinate geometry to three equivalent Y(1) and two equivalent P(1) atoms. There is one shorter (2.29 Å) and one longer (3.08 Å) Pb(1)-P(1) bond length. P(1) is bonded in a 5-coordinate geometry to three equivalent Y(1) and two equivalent Pb(1) atoms.