Dy3NiGe2 crystallizes in the orthorhombic Pmn2_1 space group. There are six inequivalent Dy sites. In the first Dy site, Dy(1) is bonded in a 6-coordinate geometry to one Ni(1); two equivalent Ge(1); and three Ge(2,2) atoms. In the second Dy site, Dy(1) is bonded in a 6-coordinate geometry to one Ni(1); two equivalent Ge(1); and three Ge(2,2) atoms. In the third Dy site, Dy(2) is bonded in a 7-coordinate geometry to two equivalent Ni(1); two Ge(1,1); and three equivalent Ge(2) atoms. In the fourth Dy site, Dy(2) is bonded in a 7-coordinate geometry to two equivalent Ni(1); two Ge(1,1); and three equivalent Ge(2) atoms. In the fifth Dy site, Dy(3) is bonded in a 8-coordinate geometry to three Ni(1,1); two equivalent Ge(2); and three Ge(1,1) atoms. In the sixth Dy site, Dy(3) is bonded in a 8-coordinate geometry to three Ni(1,1); two equivalent Ge(2); and three Ge(1,1) atoms. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 9-coordinate geometry to one Dy(1); two equivalent Dy(2); three Dy(3,3); one Ge(2); and two equivalent Ge(1) atoms. In the second Ni site, Ni(1) is bonded in a 9-coordinate geometry to one Dy(1); two equivalent Dy(2); three Dy(3,3); one Ge(2); and two equivalent Ge(1) atoms. There are four inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 9-coordinate geometry to two equivalent Dy(1); two Dy(2,2); three Dy(3,3); and two equivalent Ni(1) atoms. In the second Ge site, Ge(1) is bonded in a 9-coordinate geometry to two equivalent Dy(1); two Dy(2,2); three Dy(3,3); and two equivalent Ni(1) atoms. In the third Ge site, Ge(2) is bonded in a 9-coordinate geometry to two equivalent Dy(3); three Dy(1,1); three equivalent Dy(2); and one Ni(1) atom. In the fourth Ge site, Ge(2) is bonded in a 9-coordinate geometry to two equivalent Dy(3); three Dy(1,1); three equivalent Dy(2); and one Ni(1) atom.
Dy3NiGe2 crystallizes in the orthorhombic Pmn2_1 space group. There are six inequivalent Dy sites. In the first Dy site, Dy(1) is bonded in a 6-coordinate geometry to one Ni(1); two equivalent Ge(1); and three Ge(2,2) atoms. The Dy(1)-Ni(1) bond length is 2.82 Å. Both Dy(1)-Ge(1) bond lengths are 2.97 Å. There are two shorter (2.97 Å) and one longer (3.18 Å) Dy(1)-Ge(2,2) bond length. In the second Dy site, Dy(1) is bonded in a 6-coordinate geometry to one Ni(1); two equivalent Ge(1); and three Ge(2,2) atoms. The Dy(1)-Ni(1) bond length is 2.81 Å. Both Dy(1)-Ge(1) bond lengths are 2.97 Å. There are two shorter (2.97 Å) and one longer (3.17 Å) Dy(1)-Ge(2,2) bond length. In the third Dy site, Dy(2) is bonded in a 7-coordinate geometry to two equivalent Ni(1); two Ge(1,1); and three equivalent Ge(2) atoms. Both Dy(2)-Ni(1) bond lengths are 2.79 Å. There is one shorter (2.97 Å) and one longer (3.00 Å) Dy(2)-Ge(1,1) bond length. There are two shorter (3.01 Å) and one longer (3.61 Å) Dy(2)-Ge(2) bond length. In the fourth Dy site, Dy(2) is bonded in a 7-coordinate geometry to two equivalent Ni(1); two Ge(1,1); and three equivalent Ge(2) atoms. Both Dy(2)-Ni(1) bond lengths are 2.78 Å. There is one shorter (2.97 Å) and one longer (3.00 Å) Dy(2)-Ge(1,1) bond length. There are two shorter (3.01 Å) and one longer (3.61 Å) Dy(2)-Ge(2) bond length. In the fifth Dy site, Dy(3) is bonded in a 8-coordinate geometry to three Ni(1,1); two equivalent Ge(2); and three Ge(1,1) atoms. There is one shorter (2.93 Å) and two longer (2.97 Å) Dy(3)-Ni(1,1) bond lengths. Both Dy(3)-Ge(2) bond lengths are 3.05 Å. There is one shorter (2.97 Å) and two longer (2.98 Å) Dy(3)-Ge(1,1) bond lengths. In the sixth Dy site, Dy(3) is bonded in a 8-coordinate geometry to three Ni(1,1); two equivalent Ge(2); and three Ge(1,1) atoms. There is one shorter (2.93 Å) and two longer (2.97 Å) Dy(3)-Ni(1,1) bond lengths. Both Dy(3)-Ge(2) bond lengths are 3.05 Å. There is one shorter (2.97 Å) and two longer (2.99 Å) Dy(3)-Ge(1,1) bond lengths. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 9-coordinate geometry to one Dy(1); two equivalent Dy(2); three Dy(3,3); one Ge(2); and two equivalent Ge(1) atoms. The Ni(1)-Ge(2) bond length is 2.49 Å. Both Ni(1)-Ge(1) bond lengths are 2.49 Å. In the second Ni site, Ni(1) is bonded in a 9-coordinate geometry to one Dy(1); two equivalent Dy(2); three Dy(3,3); one Ge(2); and two equivalent Ge(1) atoms. The Ni(1)-Ge(2) bond length is 2.49 Å. Both Ni(1)-Ge(1) bond lengths are 2.49 Å. There are four inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 9-coordinate geometry to two equivalent Dy(1); two Dy(2,2); three Dy(3,3); and two equivalent Ni(1) atoms. In the second Ge site, Ge(1) is bonded in a 9-coordinate geometry to two equivalent Dy(1); two Dy(2,2); three Dy(3,3); and two equivalent Ni(1) atoms. In the third Ge site, Ge(2) is bonded in a 9-coordinate geometry to two equivalent Dy(3); three Dy(1,1); three equivalent Dy(2); and one Ni(1) atom. In the fourth Ge site, Ge(2) is bonded in a 9-coordinate geometry to two equivalent Dy(3); three Dy(1,1); three equivalent Dy(2); and one Ni(1) atom.