The material structure described by Ac3Yb is Magnesium-derived structured and crystallizes in the hexagonal P6_3/mmc space group. Ac(1) is bonded to eight equivalent Ac(1) and four equivalent Yb(1) atoms to form AcAc8Yb4 cuboctahedra that share corners with four equivalent Yb(1)Ac12 cuboctahedra, corners with fourteen equivalent Ac(1)Ac8Yb4 cuboctahedra, edges with six equivalent Yb(1)Ac12 cuboctahedra, edges with twelve equivalent Ac(1)Ac8Yb4 cuboctahedra, faces with four equivalent Yb(1)Ac12 cuboctahedra, and faces with sixteen equivalent Ac(1)Ac8Yb4 cuboctahedra. Yb(1) is bonded to twelve equivalent Ac(1) atoms to form YbAc12 cuboctahedra that share corners with six equivalent Yb(1)Ac12 cuboctahedra, corners with twelve equivalent Ac(1)Ac8Yb4 cuboctahedra, edges with eighteen equivalent Ac(1)Ac8Yb4 cuboctahedra, faces with eight equivalent Yb(1)Ac12 cuboctahedra, and faces with twelve equivalent Ac(1)Ac8Yb4 cuboctahedra. is represented by the CIF file [CIF]
data_Ac3Yb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.995
_cell_length_b   7.995
_cell_length_c   6.544
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   362.295
_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
  Ac  Ac0  1  0.168  0.337  0.250  1.0
  Ac  Ac1  1  0.663  0.832  0.250  1.0
  Ac  Ac2  1  0.168  0.832  0.250  1.0
  Ac  Ac3  1  0.832  0.663  0.750  1.0
  Ac  Ac4  1  0.337  0.168  0.750  1.0
  Ac  Ac5  1  0.832  0.168  0.750  1.0
  Yb  Yb6  1  0.333  0.667  0.750  1.0
  Yb  Yb7  1  0.667  0.333  0.250  1.0
[/CIF]
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The material structure described by Ac3Yb is Magnesium-derived structured and crystallizes in the hexagonal P6_3/mmc space group. Ac(1) is bonded to eight equivalent Ac(1) and four equivalent Yb(1) atoms to form AcAc8Yb4 cuboctahedra that share corners with four equivalent Yb(1)Ac12 cuboctahedra, corners with fourteen equivalent Ac(1)Ac8Yb4 cuboctahedra, edges with six equivalent Yb(1)Ac12 cuboctahedra, edges with twelve equivalent Ac(1)Ac8Yb4 cuboctahedra, faces with four equivalent Yb(1)Ac12 cuboctahedra, and faces with sixteen equivalent Ac(1)Ac8Yb4 cuboctahedra. Yb(1) is bonded to twelve equivalent Ac(1) atoms to form YbAc12 cuboctahedra that share corners with six equivalent Yb(1)Ac12 cuboctahedra, corners with twelve equivalent Ac(1)Ac8Yb4 cuboctahedra, edges with eighteen equivalent Ac(1)Ac8Yb4 cuboctahedra, faces with eight equivalent Yb(1)Ac12 cuboctahedra, and faces with twelve equivalent Ac(1)Ac8Yb4 cuboctahedra. is represented by the CIF file [CIF]
data_Ac3Yb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.995
_cell_length_b   7.995
_cell_length_c   6.544
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   362.295
_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
  Ac  Ac0  1  0.168  0.337  0.250  1.0
  Ac  Ac1  1  0.663  0.832  0.250  1.0
  Ac  Ac2  1  0.168  0.832  0.250  1.0
  Ac  Ac3  1  0.832  0.663  0.750  1.0
  Ac  Ac4  1  0.337  0.168  0.750  1.0
  Ac  Ac5  1  0.832  0.168  0.750  1.0
  Yb  Yb6  1  0.333  0.667  0.750  1.0
  Yb  Yb7  1  0.667  0.333  0.250  1.0
[/CIF]
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