The material structure described by YbEu(Cu4In)2 crystallizes in the trigonal R3m space group. Yb(1) is bonded in a 16-coordinate geometry to three equivalent Cu(1), three equivalent Cu(4), six equivalent Cu(2), one In(2), and three equivalent In(1) atoms. Eu(1) is bonded in a 16-coordinate geometry to three equivalent Cu(2), three equivalent Cu(3), six equivalent Cu(1), one In(1), and three equivalent In(2) atoms. There are four inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to one Yb(1), two equivalent Eu(1), one Cu(3), one Cu(4), four equivalent Cu(1), one In(2), and two equivalent In(1) atoms to form CuYbEu2In3Cu6 cuboctahedra that share corners with two equivalent Cu(3)Eu3In3Cu6 cuboctahedra, corners with two equivalent Cu(4)Yb3In3Cu6 cuboctahedra, corners with four equivalent Cu(1)YbEu2In3Cu6 cuboctahedra, corners with ten equivalent Cu(2)Yb2EuIn3Cu6 cuboctahedra, edges with two equivalent Cu(1)YbEu2In3Cu6 cuboctahedra, edges with four equivalent Cu(2)Yb2EuIn3Cu6 cuboctahedra, faces with three equivalent Cu(3)Eu3In3Cu6 cuboctahedra, faces with three equivalent Cu(4)Yb3In3Cu6 cuboctahedra, faces with four equivalent Cu(2)Yb2EuIn3Cu6 cuboctahedra, and faces with eight equivalent Cu(1)YbEu2In3Cu6 cuboctahedra. In the second Cu site, Cu(2) is bonded to two equivalent Yb(1), one Eu(1), one Cu(3), one Cu(4), four equivalent Cu(2), one In(1), and two equivalent In(2) atoms to form CuYb2EuIn3Cu6 cuboctahedra that share corners with two equivalent Cu(3)Eu3In3Cu6 cuboctahedra, corners with two equivalent Cu(4)Yb3In3Cu6 cuboctahedra, corners with four equivalent Cu(2)Yb2EuIn3Cu6 cuboctahedra, corners with ten equivalent Cu(1)YbEu2In3Cu6 cuboctahedra, edges with two equivalent Cu(2)Yb2EuIn3Cu6 cuboctahedra, edges with four equivalent Cu(1)YbEu2In3Cu6 cuboctahedra, faces with three equivalent Cu(3)Eu3In3Cu6 cuboctahedra, faces with three equivalent Cu(4)Yb3In3Cu6 cuboctahedra, faces with four equivalent Cu(1)YbEu2In3Cu6 cuboctahedra, and faces with eight equivalent Cu(2)Yb2EuIn3Cu6 cuboctahedra. In the third Cu site, Cu(3) is bonded to three equivalent Eu(1), three equivalent Cu(1), three equivalent Cu(2), and three equivalent In(2) atoms to form CuEu3In3Cu6 cuboctahedra that share corners with six equivalent Cu(2)Yb2EuIn3Cu6 cuboctahedra, corners with six equivalent Cu(4)Yb3In3Cu6 cuboctahedra, corners with six equivalent Cu(1)YbEu2In3Cu6 cuboctahedra, edges with six equivalent Cu(3)Eu3In3Cu6 cuboctahedra, faces with nine equivalent Cu(2)Yb2EuIn3Cu6 cuboctahedra, and faces with nine equivalent Cu(1)YbEu2In3Cu6 cuboctahedra. In the fourth Cu site, Cu(4) is bonded to three equivalent Yb(1), three equivalent Cu(1), three equivalent Cu(2), and three equivalent In(1) atoms to form CuYb3In3Cu6 cuboctahedra that share corners with six equivalent Cu(3)Eu3In3Cu6 cuboctahedra, corners with six equivalent Cu(2)Yb2EuIn3Cu6 cuboctahedra, corners with six equivalent Cu(1)YbEu2In3Cu6 cuboctahedra, edges with six equivalent Cu(4)Yb3In3Cu6 cuboctahedra, faces with nine equivalent Cu(2)Yb2EuIn3Cu6 cuboctahedra, and faces with nine equivalent Cu(1)YbEu2In3Cu6 cuboctahedra. There are two inequivalent In sites. In the first In site, In(1) is bonded in a 16-coordinate geometry to three equivalent Yb(1), one Eu(1), three equivalent Cu(2), three equivalent Cu(4), and six equivalent Cu(1) atoms. In the second In site, In(2) is bonded in a 16-coordinate geometry to one Yb(1), three equivalent Eu(1), three equivalent Cu(1), three equivalent Cu(3), and six equivalent Cu(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_YbEu(InCu4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.133
_cell_length_b   5.133
_cell_length_c   8.841
_cell_angle_alpha   73.123
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   190.079
_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  0.375  0.750  0.876  1.0
  Eu  Eu1  1  0.875  0.751  0.374  1.0
  In  In2  1  0.002  0.003  0.995  1.0
  In  In3  1  0.498  0.997  0.505  1.0
  Cu  Cu4  1  0.439  0.379  0.182  1.0
  Cu  Cu5  1  0.937  0.370  0.692  1.0
  Cu  Cu6  1  0.439  0.878  0.182  1.0
  Cu  Cu7  1  0.937  0.875  0.692  1.0
  Cu  Cu8  1  0.187  0.373  0.440  1.0
  Cu  Cu9  1  0.687  0.375  0.938  1.0
  Cu  Cu10  1  0.940  0.379  0.182  1.0
  Cu  Cu11  1  0.433  0.370  0.692  1.0
[/CIF]
.
The material structure described by YbEu(Cu4In)2 crystallizes in the trigonal R3m space group. Yb(1) is bonded in a 16-coordinate geometry to three equivalent Cu(1), three equivalent Cu(4), six equivalent Cu(2), one In(2), and three equivalent In(1) atoms. Eu(1) is bonded in a 16-coordinate geometry to three equivalent Cu(2), three equivalent Cu(3), six equivalent Cu(1), one In(1), and three equivalent In(2) atoms. There are four inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to one Yb(1), two equivalent Eu(1), one Cu(3), one Cu(4), four equivalent Cu(1), one In(2), and two equivalent In(1) atoms to form CuYbEu2In3Cu6 cuboctahedra that share corners with two equivalent Cu(3)Eu3In3Cu6 cuboctahedra, corners with two equivalent Cu(4)Yb3In3Cu6 cuboctahedra, corners with four equivalent Cu(1)YbEu2In3Cu6 cuboctahedra, corners with ten equivalent Cu(2)Yb2EuIn3Cu6 cuboctahedra, edges with two equivalent Cu(1)YbEu2In3Cu6 cuboctahedra, edges with four equivalent Cu(2)Yb2EuIn3Cu6 cuboctahedra, faces with three equivalent Cu(3)Eu3In3Cu6 cuboctahedra, faces with three equivalent Cu(4)Yb3In3Cu6 cuboctahedra, faces with four equivalent Cu(2)Yb2EuIn3Cu6 cuboctahedra, and faces with eight equivalent Cu(1)YbEu2In3Cu6 cuboctahedra. In the second Cu site, Cu(2) is bonded to two equivalent Yb(1), one Eu(1), one Cu(3), one Cu(4), four equivalent Cu(2), one In(1), and two equivalent In(2) atoms to form CuYb2EuIn3Cu6 cuboctahedra that share corners with two equivalent Cu(3)Eu3In3Cu6 cuboctahedra, corners with two equivalent Cu(4)Yb3In3Cu6 cuboctahedra, corners with four equivalent Cu(2)Yb2EuIn3Cu6 cuboctahedra, corners with ten equivalent Cu(1)YbEu2In3Cu6 cuboctahedra, edges with two equivalent Cu(2)Yb2EuIn3Cu6 cuboctahedra, edges with four equivalent Cu(1)YbEu2In3Cu6 cuboctahedra, faces with three equivalent Cu(3)Eu3In3Cu6 cuboctahedra, faces with three equivalent Cu(4)Yb3In3Cu6 cuboctahedra, faces with four equivalent Cu(1)YbEu2In3Cu6 cuboctahedra, and faces with eight equivalent Cu(2)Yb2EuIn3Cu6 cuboctahedra. In the third Cu site, Cu(3) is bonded to three equivalent Eu(1), three equivalent Cu(1), three equivalent Cu(2), and three equivalent In(2) atoms to form CuEu3In3Cu6 cuboctahedra that share corners with six equivalent Cu(2)Yb2EuIn3Cu6 cuboctahedra, corners with six equivalent Cu(4)Yb3In3Cu6 cuboctahedra, corners with six equivalent Cu(1)YbEu2In3Cu6 cuboctahedra, edges with six equivalent Cu(3)Eu3In3Cu6 cuboctahedra, faces with nine equivalent Cu(2)Yb2EuIn3Cu6 cuboctahedra, and faces with nine equivalent Cu(1)YbEu2In3Cu6 cuboctahedra. In the fourth Cu site, Cu(4) is bonded to three equivalent Yb(1), three equivalent Cu(1), three equivalent Cu(2), and three equivalent In(1) atoms to form CuYb3In3Cu6 cuboctahedra that share corners with six equivalent Cu(3)Eu3In3Cu6 cuboctahedra, corners with six equivalent Cu(2)Yb2EuIn3Cu6 cuboctahedra, corners with six equivalent Cu(1)YbEu2In3Cu6 cuboctahedra, edges with six equivalent Cu(4)Yb3In3Cu6 cuboctahedra, faces with nine equivalent Cu(2)Yb2EuIn3Cu6 cuboctahedra, and faces with nine equivalent Cu(1)YbEu2In3Cu6 cuboctahedra. There are two inequivalent In sites. In the first In site, In(1) is bonded in a 16-coordinate geometry to three equivalent Yb(1), one Eu(1), three equivalent Cu(2), three equivalent Cu(4), and six equivalent Cu(1) atoms. In the second In site, In(2) is bonded in a 16-coordinate geometry to one Yb(1), three equivalent Eu(1), three equivalent Cu(1), three equivalent Cu(3), and six equivalent Cu(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_YbEu(InCu4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.133
_cell_length_b   5.133
_cell_length_c   8.841
_cell_angle_alpha   73.123
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   190.079
_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  0.375  0.750  0.876  1.0
  Eu  Eu1  1  0.875  0.751  0.374  1.0
  In  In2  1  0.002  0.003  0.995  1.0
  In  In3  1  0.498  0.997  0.505  1.0
  Cu  Cu4  1  0.439  0.379  0.182  1.0
  Cu  Cu5  1  0.937  0.370  0.692  1.0
  Cu  Cu6  1  0.439  0.878  0.182  1.0
  Cu  Cu7  1  0.937  0.875  0.692  1.0
  Cu  Cu8  1  0.187  0.373  0.440  1.0
  Cu  Cu9  1  0.687  0.375  0.938  1.0
  Cu  Cu10  1  0.940  0.379  0.182  1.0
  Cu  Cu11  1  0.433  0.370  0.692  1.0
[/CIF]
.