The compound described by W2Ni3Si is Hexagonal Laves-derived structured and crystallizes in the hexagonal P6_3/mmc space group. W(1) is bonded in a 16-coordinate geometry to four equivalent W(1), nine equivalent Ni(1), and three equivalent Si(1) atoms. Ni(1) is bonded to six equivalent W(1), four equivalent Ni(1), and two equivalent Si(1) atoms to form NiSi2Ni4W6 cuboctahedra that share corners with four equivalent Si(1)Ni6W6 cuboctahedra, corners with fourteen equivalent Ni(1)Si2Ni4W6 cuboctahedra, edges with six equivalent Ni(1)Si2Ni4W6 cuboctahedra, faces with six equivalent Si(1)Ni6W6 cuboctahedra, and faces with twelve equivalent Ni(1)Si2Ni4W6 cuboctahedra. Si(1) is bonded to six equivalent W(1) and six equivalent Ni(1) atoms to form SiNi6W6 cuboctahedra that share corners with twelve equivalent Ni(1)Si2Ni4W6 cuboctahedra, edges with six equivalent Si(1)Ni6W6 cuboctahedra, faces with two equivalent Si(1)Ni6W6 cuboctahedra, and faces with eighteen equivalent Ni(1)Si2Ni4W6 cuboctahedra. is represented by the CIF file [CIF]
data_SiNi3W2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.710
_cell_length_b   4.710
_cell_length_c   7.501
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   119.998
_symmetry_Int_Tables_number   1
_cell_volume   144.084
_cell_formula_units_Z   2
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
  Si  Si0  1  1.000  0.000  0.000  1.0
  Si  Si1  1  1.000  0.000  0.500  1.0
  Ni  Ni2  1  0.831  0.169  0.750  1.0
  Ni  Ni3  1  0.831  0.662  0.750  1.0
  Ni  Ni4  1  0.338  0.169  0.750  1.0
  Ni  Ni5  1  0.169  0.831  0.250  1.0
  Ni  Ni6  1  0.169  0.338  0.250  1.0
  Ni  Ni7  1  0.662  0.831  0.250  1.0
  W  W8  1  0.333  0.667  0.936  1.0
  W  W9  1  0.667  0.333  0.064  1.0
  W  W10  1  0.667  0.333  0.436  1.0
  W  W11  1  0.333  0.667  0.564  1.0
[/CIF]
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The compound described by W2Ni3Si is Hexagonal Laves-derived structured and crystallizes in the hexagonal P6_3/mmc space group. W(1) is bonded in a 16-coordinate geometry to four equivalent W(1), nine equivalent Ni(1), and three equivalent Si(1) atoms. Ni(1) is bonded to six equivalent W(1), four equivalent Ni(1), and two equivalent Si(1) atoms to form NiSi2Ni4W6 cuboctahedra that share corners with four equivalent Si(1)Ni6W6 cuboctahedra, corners with fourteen equivalent Ni(1)Si2Ni4W6 cuboctahedra, edges with six equivalent Ni(1)Si2Ni4W6 cuboctahedra, faces with six equivalent Si(1)Ni6W6 cuboctahedra, and faces with twelve equivalent Ni(1)Si2Ni4W6 cuboctahedra. Si(1) is bonded to six equivalent W(1) and six equivalent Ni(1) atoms to form SiNi6W6 cuboctahedra that share corners with twelve equivalent Ni(1)Si2Ni4W6 cuboctahedra, edges with six equivalent Si(1)Ni6W6 cuboctahedra, faces with two equivalent Si(1)Ni6W6 cuboctahedra, and faces with eighteen equivalent Ni(1)Si2Ni4W6 cuboctahedra. is represented by the CIF file [CIF]
data_SiNi3W2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.710
_cell_length_b   4.710
_cell_length_c   7.501
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   119.998
_symmetry_Int_Tables_number   1
_cell_volume   144.084
_cell_formula_units_Z   2
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
  Si  Si0  1  1.000  0.000  0.000  1.0
  Si  Si1  1  1.000  0.000  0.500  1.0
  Ni  Ni2  1  0.831  0.169  0.750  1.0
  Ni  Ni3  1  0.831  0.662  0.750  1.0
  Ni  Ni4  1  0.338  0.169  0.750  1.0
  Ni  Ni5  1  0.169  0.831  0.250  1.0
  Ni  Ni6  1  0.169  0.338  0.250  1.0
  Ni  Ni7  1  0.662  0.831  0.250  1.0
  W  W8  1  0.333  0.667  0.936  1.0
  W  W9  1  0.667  0.333  0.064  1.0
  W  W10  1  0.667  0.333  0.436  1.0
  W  W11  1  0.333  0.667  0.564  1.0
[/CIF]
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