Dy2CuIn3 crystallizes in the orthorhombic Pmm2 space group. There are two inequivalent Dy sites. In the first Dy site, Dy(1) is bonded to two equivalent Dy(1), one Cu(1), one In(3), two equivalent In(1), and two equivalent In(2) atoms to form distorted DyDy2In5Cu hexagonal bipyramids that share corners with two equivalent Dy(1)Dy2In5Cu hexagonal bipyramids, corners with three equivalent In(3)Dy3In4Cu hexagonal bipyramids, edges with two equivalent Dy(1)Dy2In5Cu hexagonal bipyramids, edges with three equivalent In(3)Dy3In4Cu hexagonal bipyramids, edges with four equivalent Dy(2)Dy2In4Cu2 hexagonal bipyramids, edges with six equivalent In(2)Dy3In3Cu2 hexagonal bipyramids, and edges with six equivalent In(1)Dy3In5 hexagonal bipyramids. In the second Dy site, Dy(2) is bonded to two equivalent Dy(2), two equivalent Cu(1), one In(1), one In(2), and two equivalent In(3) atoms to form distorted DyDy2In4Cu2 hexagonal bipyramids that share corners with two equivalent Dy(2)Dy2In4Cu2 hexagonal bipyramids, corners with three equivalent In(2)Dy3In3Cu2 hexagonal bipyramids, corners with three equivalent In(1)Dy3In5 hexagonal bipyramids, edges with two equivalent Dy(2)Dy2In4Cu2 hexagonal bipyramids, edges with three equivalent In(2)Dy3In3Cu2 hexagonal bipyramids, edges with three equivalent In(1)Dy3In5 hexagonal bipyramids, edges with four equivalent Dy(1)Dy2In5Cu hexagonal bipyramids, and edges with six equivalent In(3)Dy3In4Cu hexagonal bipyramids. Cu(1) is bonded in a distorted hexagonal planar geometry to one Dy(1), two equivalent Dy(2), one In(3), and two equivalent In(2) atoms. There are three inequivalent In sites. In the first In site, In(1) is bonded to one Dy(2), two equivalent Dy(1), one In(2), two equivalent In(1), and two equivalent In(3) atoms to form distorted InDy3In5 hexagonal bipyramids that share corners with two equivalent In(1)Dy3In5 hexagonal bipyramids, corners with three equivalent Dy(2)Dy2In4Cu2 hexagonal bipyramids, corners with three equivalent In(2)Dy3In3Cu2 hexagonal bipyramids, edges with two equivalent In(1)Dy3In5 hexagonal bipyramids, edges with three equivalent Dy(2)Dy2In4Cu2 hexagonal bipyramids, edges with three equivalent In(2)Dy3In3Cu2 hexagonal bipyramids, edges with six equivalent Dy(1)Dy2In5Cu hexagonal bipyramids, and edges with six equivalent In(3)Dy3In4Cu hexagonal bipyramids. In the second In site, In(2) is bonded to one Dy(2), two equivalent Dy(1), two equivalent Cu(1), one In(1), and two equivalent In(2) atoms to form distorted InDy3In3Cu2 hexagonal bipyramids that share corners with two equivalent In(2)Dy3In3Cu2 hexagonal bipyramids, corners with three equivalent Dy(2)Dy2In4Cu2 hexagonal bipyramids, corners with three equivalent In(1)Dy3In5 hexagonal bipyramids, edges with two equivalent In(2)Dy3In3Cu2 hexagonal bipyramids, edges with three equivalent Dy(2)Dy2In4Cu2 hexagonal bipyramids, edges with three equivalent In(1)Dy3In5 hexagonal bipyramids, edges with four equivalent In(3)Dy3In4Cu hexagonal bipyramids, and edges with six equivalent Dy(1)Dy2In5Cu hexagonal bipyramids. In the third In site, In(3) is bonded to one Dy(1), two equivalent Dy(2), one Cu(1), two equivalent In(1), and two equivalent In(3) atoms to form distorted InDy3In4Cu hexagonal bipyramids that share corners with two equivalent In(3)Dy3In4Cu hexagonal bipyramids, corners with three equivalent Dy(1)Dy2In5Cu hexagonal bipyramids, edges with two equivalent In(3)Dy3In4Cu hexagonal bipyramids, edges with three equivalent Dy(1)Dy2In5Cu hexagonal bipyramids, edges with four equivalent In(2)Dy3In3Cu2 hexagonal bipyramids, edges with six equivalent Dy(2)Dy2In4Cu2 hexagonal bipyramids, and edges with six equivalent In(1)Dy3In5 hexagonal bipyramids.
Dy2CuIn3 crystallizes in the orthorhombic Pmm2 space group. There are two inequivalent Dy sites. In the first Dy site, Dy(1) is bonded to two equivalent Dy(1), one Cu(1), one In(3), two equivalent In(1), and two equivalent In(2) atoms to form distorted DyDy2In5Cu hexagonal bipyramids that share corners with two equivalent Dy(1)Dy2In5Cu hexagonal bipyramids, corners with three equivalent In(3)Dy3In4Cu hexagonal bipyramids, edges with two equivalent Dy(1)Dy2In5Cu hexagonal bipyramids, edges with three equivalent In(3)Dy3In4Cu hexagonal bipyramids, edges with four equivalent Dy(2)Dy2In4Cu2 hexagonal bipyramids, edges with six equivalent In(2)Dy3In3Cu2 hexagonal bipyramids, and edges with six equivalent In(1)Dy3In5 hexagonal bipyramids. Both Dy(1)-Dy(1) bond lengths are 3.38 Å. The Dy(1)-Cu(1) bond length is 2.96 Å. The Dy(1)-In(3) bond length is 3.34 Å. Both Dy(1)-In(1) bond lengths are 3.19 Å. Both Dy(1)-In(2) bond lengths are 3.05 Å. In the second Dy site, Dy(2) is bonded to two equivalent Dy(2), two equivalent Cu(1), one In(1), one In(2), and two equivalent In(3) atoms to form distorted DyDy2In4Cu2 hexagonal bipyramids that share corners with two equivalent Dy(2)Dy2In4Cu2 hexagonal bipyramids, corners with three equivalent In(2)Dy3In3Cu2 hexagonal bipyramids, corners with three equivalent In(1)Dy3In5 hexagonal bipyramids, edges with two equivalent Dy(2)Dy2In4Cu2 hexagonal bipyramids, edges with three equivalent In(2)Dy3In3Cu2 hexagonal bipyramids, edges with three equivalent In(1)Dy3In5 hexagonal bipyramids, edges with four equivalent Dy(1)Dy2In5Cu hexagonal bipyramids, and edges with six equivalent In(3)Dy3In4Cu hexagonal bipyramids. Both Dy(2)-Dy(2) bond lengths are 3.38 Å. Both Dy(2)-Cu(1) bond lengths are 3.04 Å. The Dy(2)-In(1) bond length is 3.19 Å. The Dy(2)-In(2) bond length is 2.95 Å. Both Dy(2)-In(3) bond lengths are 3.10 Å. Cu(1) is bonded in a distorted hexagonal planar geometry to one Dy(1), two equivalent Dy(2), one In(3), and two equivalent In(2) atoms. The Cu(1)-In(3) bond length is 3.05 Å. Both Cu(1)-In(2) bond lengths are 3.05 Å. There are three inequivalent In sites. In the first In site, In(1) is bonded to one Dy(2), two equivalent Dy(1), one In(2), two equivalent In(1), and two equivalent In(3) atoms to form distorted InDy3In5 hexagonal bipyramids that share corners with two equivalent In(1)Dy3In5 hexagonal bipyramids, corners with three equivalent Dy(2)Dy2In4Cu2 hexagonal bipyramids, corners with three equivalent In(2)Dy3In3Cu2 hexagonal bipyramids, edges with two equivalent In(1)Dy3In5 hexagonal bipyramids, edges with three equivalent Dy(2)Dy2In4Cu2 hexagonal bipyramids, edges with three equivalent In(2)Dy3In3Cu2 hexagonal bipyramids, edges with six equivalent Dy(1)Dy2In5Cu hexagonal bipyramids, and edges with six equivalent In(3)Dy3In4Cu hexagonal bipyramids. The In(1)-In(2) bond length is 3.22 Å. Both In(1)-In(1) bond lengths are 3.38 Å. Both In(1)-In(3) bond lengths are 3.11 Å. In the second In site, In(2) is bonded to one Dy(2), two equivalent Dy(1), two equivalent Cu(1), one In(1), and two equivalent In(2) atoms to form distorted InDy3In3Cu2 hexagonal bipyramids that share corners with two equivalent In(2)Dy3In3Cu2 hexagonal bipyramids, corners with three equivalent Dy(2)Dy2In4Cu2 hexagonal bipyramids, corners with three equivalent In(1)Dy3In5 hexagonal bipyramids, edges with two equivalent In(2)Dy3In3Cu2 hexagonal bipyramids, edges with three equivalent Dy(2)Dy2In4Cu2 hexagonal bipyramids, edges with three equivalent In(1)Dy3In5 hexagonal bipyramids, edges with four equivalent In(3)Dy3In4Cu hexagonal bipyramids, and edges with six equivalent Dy(1)Dy2In5Cu hexagonal bipyramids. Both In(2)-In(2) bond lengths are 3.38 Å. In the third In site, In(3) is bonded to one Dy(1), two equivalent Dy(2), one Cu(1), two equivalent In(1), and two equivalent In(3) atoms to form distorted InDy3In4Cu hexagonal bipyramids that share corners with two equivalent In(3)Dy3In4Cu hexagonal bipyramids, corners with three equivalent Dy(1)Dy2In5Cu hexagonal bipyramids, edges with two equivalent In(3)Dy3In4Cu hexagonal bipyramids, edges with three equivalent Dy(1)Dy2In5Cu hexagonal bipyramids, edges with four equivalent In(2)Dy3In3Cu2 hexagonal bipyramids, edges with six equivalent Dy(2)Dy2In4Cu2 hexagonal bipyramids, and edges with six equivalent In(1)Dy3In5 hexagonal bipyramids. Both In(3)-In(3) bond lengths are 3.38 Å.