The material structure described by Be4CuSi is Hexagonal Laves-derived structured and crystallizes in the cubic F-43m space group. Be(1) is bonded to six equivalent Be(1), three equivalent Cu(1), and three equivalent Si(1) atoms to form a mixture of corner, edge, and face-sharing BeBe6Cu3Si3 cuboctahedra. Cu(1) is bonded in a 16-coordinate geometry to twelve equivalent Be(1) and four equivalent Si(1) atoms. Si(1) is bonded in a 16-coordinate geometry to twelve equivalent Be(1) and four equivalent Cu(1) atoms. is represented by the CIF file [CIF]
data_Be4CuSi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.326
_cell_length_b   4.326
_cell_length_c   4.326
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   57.264
_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
  Be  Be0  1  0.625  0.625  0.125  1.0
  Be  Be1  1  0.625  0.125  0.625  1.0
  Be  Be2  1  0.125  0.625  0.625  1.0
  Be  Be3  1  0.625  0.625  0.625  1.0
  Cu  Cu4  1  0.250  0.250  0.250  1.0
  Si  Si5  1  0.000  0.000  0.000  1.0
[/CIF]
.
The material structure described by Be4CuSi is Hexagonal Laves-derived structured and crystallizes in the cubic F-43m space group. Be(1) is bonded to six equivalent Be(1), three equivalent Cu(1), and three equivalent Si(1) atoms to form a mixture of corner, edge, and face-sharing BeBe6Cu3Si3 cuboctahedra. Cu(1) is bonded in a 16-coordinate geometry to twelve equivalent Be(1) and four equivalent Si(1) atoms. Si(1) is bonded in a 16-coordinate geometry to twelve equivalent Be(1) and four equivalent Cu(1) atoms. is represented by the CIF file [CIF]
data_Be4CuSi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.326
_cell_length_b   4.326
_cell_length_c   4.326
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   57.264
_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
  Be  Be0  1  0.625  0.625  0.125  1.0
  Be  Be1  1  0.625  0.125  0.625  1.0
  Be  Be2  1  0.125  0.625  0.625  1.0
  Be  Be3  1  0.625  0.625  0.625  1.0
  Cu  Cu4  1  0.250  0.250  0.250  1.0
  Si  Si5  1  0.000  0.000  0.000  1.0
[/CIF]
.