data_ScCdHgPb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.21
_cell_length_b   5.21
_cell_length_c   5.21
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   ScCdHgPb
_chemical_formula_sum   'Sc1 Cd1 Hg1 Pb1'
_cell_volume   99.8
_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
  Sc  Sc3  1  0.0  0.0  0.0  1.0
  Cd  Cd0  1  0.84  0.84  0.84  1.0
  Hg  Hg1  1  0.52  0.52  0.52  1.0
  Pb  Pb2  1  0.68  0.68  0.68  1.0

data_ScCdHgPb
_symmetry_space_group_name_H-M   R3m
_cell_length_a   5.21
_cell_length_b   5.21
_cell_length_c   12.75
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   ScCdHgPb
_chemical_formula_sum   'Sc3 Cd3 Hg3 Pb3'
_cell_volume   299.39
_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
  Sc  Sc0  3  0.0  0.0  0.0  1.0
  Cd  Cd1  3  0.0  0.0  0.16  1.0
  Hg  Hg2  3  0.0  0.0  0.48  1.0
  Pb  Pb3  3  0.0  0.0  0.32  1.0

Sc Cd Hg Pb
ScHgCdPb crystallizes in the trigonal R3m space group. Sc(1) is bonded to one Cd(1) and three equivalent Pb(1) atoms to form distorted ScCdPb3 trigonal pyramids that share  a cornercorner with one Pb(1)Sc3CdHg trigonal bipyramid and corners with six equivalent Sc(1)CdPb3 trigonal pyramids. The Sc(1)-Cd(1) bond length is 2.03 Å. All Sc(1)-Pb(1) bond lengths are 3.01 Å. Hg(1) is bonded in a distorted single-bond geometry to three equivalent Cd(1) and one Pb(1) atom. All Hg(1)-Cd(1) bond lengths are 3.01 Å. The Hg(1)-Pb(1) bond length is 2.03 Å. Cd(1) is bonded in a distorted linear geometry to one Sc(1), three equivalent Hg(1), and one Pb(1) atom. The Cd(1)-Pb(1) bond length is 2.03 Å. Pb(1) is bonded to three equivalent Sc(1), one Hg(1), and one Cd(1) atom to form distorted PbSc3CdHg trigonal bipyramids that share corners with six equivalent Pb(1)Sc3CdHg trigonal bipyramids and  a cornercorner with one Sc(1)CdPb3 trigonal pyramid.