The structure described by YbCuZnSi2 crystallizes in the tetragonal I-4m2 space group. Yb(1) is bonded in a 16-coordinate geometry to four equivalent Cu(1), four equivalent Zn(1), and eight equivalent Si(1) atoms. Cu(1) is bonded to four equivalent Yb(1), four equivalent Zn(1), and four equivalent Si(1) atoms to form CuYb4Zn4Si4 cuboctahedra that share corners with twelve equivalent Cu(1)Yb4Zn4Si4 cuboctahedra, corners with four equivalent Zn(1)Yb4Cu4Si4 tetrahedra, edges with two equivalent Zn(1)Yb4Cu4Si4 tetrahedra, faces with four equivalent Cu(1)Yb4Zn4Si4 cuboctahedra, and faces with four equivalent Zn(1)Yb4Cu4Si4 tetrahedra. Zn(1) is bonded to four equivalent Yb(1), four equivalent Cu(1), and four equivalent Si(1) atoms to form distorted ZnYb4Cu4Si4 tetrahedra that share corners with four equivalent Cu(1)Yb4Zn4Si4 cuboctahedra, corners with twelve equivalent Zn(1)Yb4Cu4Si4 tetrahedra, edges with two equivalent Cu(1)Yb4Zn4Si4 cuboctahedra, faces with four equivalent Cu(1)Yb4Zn4Si4 cuboctahedra, and faces with four equivalent Zn(1)Yb4Cu4Si4 tetrahedra. Si(1) is bonded in a 9-coordinate geometry to four equivalent Yb(1), two equivalent Cu(1), two equivalent Zn(1), and one Si(1) atom. is represented by the CIF file [CIF]
data_YbZnCuSi2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.823
_cell_length_b   5.823
_cell_length_c   5.823
_cell_angle_alpha   139.125
_cell_angle_beta   139.125
_cell_angle_gamma   59.185
_symmetry_Int_Tables_number   1
_cell_volume   83.746
_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
  Yb  Yb0  1  0.000  0.000  0.000  1.0
  Zn  Zn1  1  0.250  0.750  0.500  1.0
  Cu  Cu2  1  0.750  0.250  0.500  1.0
  Si  Si3  1  0.615  0.615  0.000  1.0
  Si  Si4  1  0.385  0.385  0.000  1.0
[/CIF]
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The structure described by YbCuZnSi2 crystallizes in the tetragonal I-4m2 space group. Yb(1) is bonded in a 16-coordinate geometry to four equivalent Cu(1), four equivalent Zn(1), and eight equivalent Si(1) atoms. Cu(1) is bonded to four equivalent Yb(1), four equivalent Zn(1), and four equivalent Si(1) atoms to form CuYb4Zn4Si4 cuboctahedra that share corners with twelve equivalent Cu(1)Yb4Zn4Si4 cuboctahedra, corners with four equivalent Zn(1)Yb4Cu4Si4 tetrahedra, edges with two equivalent Zn(1)Yb4Cu4Si4 tetrahedra, faces with four equivalent Cu(1)Yb4Zn4Si4 cuboctahedra, and faces with four equivalent Zn(1)Yb4Cu4Si4 tetrahedra. Zn(1) is bonded to four equivalent Yb(1), four equivalent Cu(1), and four equivalent Si(1) atoms to form distorted ZnYb4Cu4Si4 tetrahedra that share corners with four equivalent Cu(1)Yb4Zn4Si4 cuboctahedra, corners with twelve equivalent Zn(1)Yb4Cu4Si4 tetrahedra, edges with two equivalent Cu(1)Yb4Zn4Si4 cuboctahedra, faces with four equivalent Cu(1)Yb4Zn4Si4 cuboctahedra, and faces with four equivalent Zn(1)Yb4Cu4Si4 tetrahedra. Si(1) is bonded in a 9-coordinate geometry to four equivalent Yb(1), two equivalent Cu(1), two equivalent Zn(1), and one Si(1) atom. is represented by the CIF file [CIF]
data_YbZnCuSi2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.823
_cell_length_b   5.823
_cell_length_c   5.823
_cell_angle_alpha   139.125
_cell_angle_beta   139.125
_cell_angle_gamma   59.185
_symmetry_Int_Tables_number   1
_cell_volume   83.746
_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
  Yb  Yb0  1  0.000  0.000  0.000  1.0
  Zn  Zn1  1  0.250  0.750  0.500  1.0
  Cu  Cu2  1  0.750  0.250  0.500  1.0
  Si  Si3  1  0.615  0.615  0.000  1.0
  Si  Si4  1  0.385  0.385  0.000  1.0
[/CIF]
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