data_ScSi4W
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.95
_cell_length_b   4.95
_cell_length_c   4.95
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   ScSi4W
_chemical_formula_sum   'Sc1 Si4 W1'
_cell_volume   85.66
_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  Sc0  1  0.0  0.0  0.0  1.0
  Si  Si1  1  0.37  0.37  0.63  1.0
  Si  Si2  1  0.37  0.63  0.37  1.0
  Si  Si3  1  0.63  0.37  0.37  1.0
  Si  Si4  1  0.63  0.63  0.63  1.0
  W  W5  1  0.25  0.25  0.25  1.0

data_ScSi4W
_symmetry_space_group_name_H-M   R3m
_cell_length_a   4.95
_cell_length_b   4.95
_cell_length_c   12.12
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   ScSi4W
_chemical_formula_sum   'Sc3 Si12 W3'
_cell_volume   256.98
_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
  Si  Si1  9  0.09  0.17  0.54  1.0
  Si  Si2  3  0.0  0.0  0.37  1.0
  W  W3  3  0.0  0.0  0.75  1.0

Sc Si Si Si Si W
ScWSi4 crystallizes in the trigonal R3m space group. Sc(1) is bonded in a 10-coordinate geometry to four equivalent W(1), three equivalent Si(1), and three equivalent Si(2) atoms. There is one shorter (3.01 Å) and three longer (3.04 Å) Sc(1)-W(1) bond lengths. All Sc(1)-Si(1) bond lengths are 2.60 Å. All Sc(1)-Si(2) bond lengths are 2.90 Å. W(1) is bonded in a 13-coordinate geometry to four equivalent Sc(1), three equivalent Si(2), and six equivalent Si(1) atoms. All W(1)-Si(2) bond lengths are 2.91 Å. There are three shorter (2.61 Å) and three longer (2.62 Å) W(1)-Si(1) bond lengths. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded in a 6-coordinate geometry to one Sc(1), two equivalent W(1), one Si(2), and two equivalent Si(1) atoms. The Si(1)-Si(2) bond length is 2.19 Å. Both Si(1)-Si(1) bond lengths are 1.27 Å. In the second Si site, Si(2) is bonded in a 9-coordinate geometry to three equivalent Sc(1), three equivalent W(1), and three equivalent Si(1) atoms.