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.
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. All Yb(1)-Cu(1) bond lengths are 2.95 Å. All Yb(1)-Cu(4) bond lengths are 3.01 Å. All Yb(1)-Cu(2) bond lengths are 2.99 Å. The Yb(1)-In(2) bond length is 3.09 Å. All Yb(1)-In(1) bond lengths are 3.13 Å. 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. All Eu(1)-Cu(2) bond lengths are 3.05 Å. All Eu(1)-Cu(3) bond lengths are 3.01 Å. All Eu(1)-Cu(1) bond lengths are 3.02 Å. The Eu(1)-In(1) bond length is 3.16 Å. All Eu(1)-In(2) bond lengths are 3.16 Å. 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. The Cu(1)-Cu(3) bond length is 2.61 Å. The Cu(1)-Cu(4) bond length is 2.52 Å. There are two shorter (2.56 Å) and two longer (2.57 Å) Cu(1)-Cu(1) bond lengths. The Cu(1)-In(2) bond length is 3.08 Å. Both Cu(1)-In(1) bond lengths are 3.00 Å. 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. The Cu(2)-Cu(3) bond length is 2.56 Å. The Cu(2)-Cu(4) bond length is 2.53 Å. There are two shorter (2.54 Å) and two longer (2.59 Å) Cu(2)-Cu(2) bond lengths. The Cu(2)-In(1) bond length is 2.92 Å. Both Cu(2)-In(2) bond lengths are 3.00 Å. 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. All Cu(3)-In(2) bond lengths are 3.01 Å. 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. All Cu(4)-In(1) bond lengths are 3.00 Å. 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.