EuNi5In crystallizes in the trigonal R-3m space group. There are two inequivalent Eu sites. In the first Eu site, Eu(1) is bonded in a distorted hexagonal planar geometry to six equivalent Ni(1), twelve equivalent Ni(2), and two equivalent In(1) atoms. In the second Eu site, Eu(2) is bonded in a 18-coordinate geometry to six equivalent Ni(2), six equivalent Ni(3), and six equivalent In(1) atoms. There are three inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 12-coordinate geometry to three equivalent Eu(1), three equivalent Ni(1), and six equivalent Ni(2) atoms. In the second Ni site, Ni(2) is bonded to one Eu(2), two equivalent Eu(1), one Ni(3), two equivalent Ni(1), four equivalent Ni(2), and two equivalent In(1) atoms to form a mixture of edge, face, and corner-sharing NiEu3In2Ni7 cuboctahedra. In the third Ni site, Ni(3) is bonded in a 10-coordinate geometry to three equivalent Eu(2), three equivalent Ni(2), and four equivalent In(1) atoms. In(1) is bonded in a 14-coordinate geometry to one Eu(1), three equivalent Eu(2), four equivalent Ni(3), and six equivalent Ni(2) atoms.
EuNi5In crystallizes in the trigonal R-3m space group. There are two inequivalent Eu sites. In the first Eu site, Eu(1) is bonded in a distorted hexagonal planar geometry to six equivalent Ni(1), twelve equivalent Ni(2), and two equivalent In(1) atoms. All Eu(1)-Ni(1) bond lengths are 2.82 Å. All Eu(1)-Ni(2) bond lengths are 3.15 Å. Both Eu(1)-In(1) bond lengths are 3.26 Å. In the second Eu site, Eu(2) is bonded in a 18-coordinate geometry to six equivalent Ni(2), six equivalent Ni(3), and six equivalent In(1) atoms. All Eu(2)-Ni(2) bond lengths are 3.25 Å. All Eu(2)-Ni(3) bond lengths are 2.99 Å. All Eu(2)-In(1) bond lengths are 3.27 Å. There are three inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 12-coordinate geometry to three equivalent Eu(1), three equivalent Ni(1), and six equivalent Ni(2) atoms. All Ni(1)-Ni(1) bond lengths are 2.82 Å. There are three shorter (2.42 Å) and three longer (2.45 Å) Ni(1)-Ni(2) bond lengths. In the second Ni site, Ni(2) is bonded to one Eu(2), two equivalent Eu(1), one Ni(3), two equivalent Ni(1), four equivalent Ni(2), and two equivalent In(1) atoms to form a mixture of edge, face, and corner-sharing NiEu3In2Ni7 cuboctahedra. The Ni(2)-Ni(3) bond length is 2.41 Å. There are two shorter (2.43 Å) and two longer (2.45 Å) Ni(2)-Ni(2) bond lengths. Both Ni(2)-In(1) bond lengths are 2.75 Å. In the third Ni site, Ni(3) is bonded in a 10-coordinate geometry to three equivalent Eu(2), three equivalent Ni(2), and four equivalent In(1) atoms. There is one shorter (2.65 Å) and three longer (2.90 Å) Ni(3)-In(1) bond lengths. In(1) is bonded in a 14-coordinate geometry to one Eu(1), three equivalent Eu(2), four equivalent Ni(3), and six equivalent Ni(2) atoms.