data_NaCrInPb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.22
_cell_length_b   5.22
_cell_length_c   5.22
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NaCrInPb
_chemical_formula_sum   'Na1 Cr1 In1 Pb1'
_cell_volume   100.36
_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
  Na  Na2  1  0.0  0.0  0.0  1.0
  Cr  Cr0  1  0.53  0.53  0.53  1.0
  In  In1  1  0.69  0.69  0.69  1.0
  Pb  Pb3  1  0.84  0.84  0.84  1.0

data_NaCrInPb
_symmetry_space_group_name_H-M   R3m
_cell_length_a   5.22
_cell_length_b   5.22
_cell_length_c   12.78
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   NaCrInPb
_chemical_formula_sum   'Na3 Cr3 In3 Pb3'
_cell_volume   301.09
_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
  Na  Na0  3  0.0  0.0  0.0  1.0
  Cr  Cr1  3  0.0  0.0  0.47  1.0
  In  In2  3  0.0  0.0  0.31  1.0
  Pb  Pb3  3  0.0  0.0  0.16  1.0

Na Cr In Pb
NaCrInPb crystallizes in the trigonal R3m space group. Na(1) is bonded in a distorted single-bond geometry to three equivalent In(1) and one Pb(1) atom. All Na(1)-In(1) bond lengths are 3.02 Å. The Na(1)-Pb(1) bond length is 1.99 Å. Cr(1) is bonded to one In(1) and three equivalent Pb(1) atoms to form distorted CrInPb3 trigonal pyramids that share corners with three equivalent In(1)Na3CrPb trigonal bipyramids and corners with six equivalent Cr(1)InPb3 trigonal pyramids. The Cr(1)-In(1) bond length is 1.99 Å. All Cr(1)-Pb(1) bond lengths are 3.02 Å. In(1) is bonded to three equivalent Na(1), one Cr(1), and one Pb(1) atom to form distorted InNa3CrPb trigonal bipyramids that share corners with six equivalent In(1)Na3CrPb trigonal bipyramids and corners with three equivalent Cr(1)InPb3 trigonal pyramids. The In(1)-Pb(1) bond length is 1.99 Å. Pb(1) is bonded in a distorted linear geometry to one Na(1), three equivalent Cr(1), and one In(1) atom.