data_YNbZnPb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.19
_cell_length_b   5.19
_cell_length_c   5.19
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   YNbZnPb
_chemical_formula_sum   'Y1 Nb1 Zn1 Pb1'
_cell_volume   99.01
_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  0.51  0.51  0.51  1.0
  Nb  Nb0  1  0.67  0.67  0.67  1.0
  Zn  Zn3  1  0.0  0.0  0.0  1.0
  Pb  Pb1  1  0.84  0.84  0.84  1.0

data_YNbZnPb
_symmetry_space_group_name_H-M   R3m
_cell_length_a   5.19
_cell_length_b   5.19
_cell_length_c   12.72
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   YNbZnPb
_chemical_formula_sum   'Y3 Nb3 Zn3 Pb3'
_cell_volume   297.04
_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
  Y  Y0  3  0.0  0.0  0.49  1.0
  Nb  Nb1  3  0.0  0.0  0.33  1.0
  Zn  Zn2  3  0.0  0.0  0.0  1.0
  Pb  Pb3  3  0.0  0.0  0.16  1.0

Y Nb Zn Pb
YNbZnPb crystallizes in the trigonal R3m space group. Y(1) is bonded to one Nb(1) and three equivalent Pb(1) atoms to form distorted YNbPb3 trigonal pyramids that share  a cornercorner with one Pb(1)Y3NbZn trigonal bipyramid and corners with six equivalent Y(1)NbPb3 trigonal pyramids. The Y(1)-Nb(1) bond length is 2.09 Å. All Y(1)-Pb(1) bond lengths are 3.00 Å. Nb(1) is bonded in a distorted linear geometry to one Y(1) and one Pb(1) atom. The Nb(1)-Pb(1) bond length is 2.09 Å. Zn(1) is bonded in a single-bond geometry to one Pb(1) atom. The Zn(1)-Pb(1) bond length is 2.09 Å. Pb(1) is bonded to three equivalent Y(1), one Nb(1), and one Zn(1) atom to form distorted PbY3NbZn trigonal bipyramids that share corners with six equivalent Pb(1)Y3NbZn trigonal bipyramids and  a cornercorner with one Y(1)NbPb3 trigonal pyramid.