data_SrNb2Pb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.22
_cell_length_b   3.22
_cell_length_c   10.7
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   108.54
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SrNb2Pb
_chemical_formula_sum   'Sr1 Nb2 Pb1'
_cell_volume   104.97
_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
  Sr  Sr3  1  0.0  0.0  0.0  1.0
  Nb  Nb0  1  0.88  0.0  0.7  1.0
  Nb  Nb1  1  0.88  0.0  0.01  1.0
  Pb  Pb2  1  0.0  0.0  0.35  1.0

data_SrNb2Pb
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.22
_cell_length_b   3.22
_cell_length_c   10.7
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   108.54
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SrNb2Pb
_chemical_formula_sum   'Sr1 Nb2 Pb1'
_cell_volume   104.97
_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
  Sr  Sr0  1  0.0  0.0  0.0  1.0
  Nb  Nb1  1  0.88  0.0  0.01  1.0
  Nb  Nb2  1  0.88  0.0  0.7  1.0
  Pb  Pb3  1  0.0  0.0  0.35  1.0

Sr Nb Nb Pb
Sr Nb Nb Pb 0 2 - o o 0 1 - o - 0 3 o o o 1 1 + + o 1 1 o + o 1 1 + o o 1 3 + o o 1 2 o o + 2 3 + o o 3 3 + + o 3 3 o + o 3 3 + o o 
SrNb2Pb crystallizes in the triclinic P1 space group. Sr(1) is bonded in a single-bond geometry to one Nb(1), one Nb(2), and one Pb(1) atom. The Sr(1)-Nb(1) bond length is 3.25 Å. The Sr(1)-Nb(2) bond length is 0.40 Å. The Sr(1)-Pb(1) bond length is 3.77 Å. There are two inequivalent Nb sites. In the first Nb site, Nb(1) is bonded in a 6-coordinate geometry to one Sr(1), four equivalent Nb(1), and one Pb(1) atom. All Nb(1)-Nb(1) bond lengths are 3.22 Å. The Nb(1)-Pb(1) bond length is 3.73 Å. In the second Nb site, Nb(2) is bonded in a single-bond geometry to one Sr(1) and one Pb(1) atom. The Nb(2)-Pb(1) bond length is 3.73 Å. Pb(1) is bonded to one Sr(1), one Nb(1), one Nb(2), and four equivalent Pb(1) atoms to form a mixture of distorted corner and edge-sharing PbSrNb2Pb4 pentagonal bipyramids. All Pb(1)-Pb(1) bond lengths are 3.22 Å.