DOE OSTI2020
EuRh2In8 crystallizes in the orthorhombic Pbam space group. The structure is three-dimensional. Eu is bonded in a 12-coordinate geometry to thirteen In atoms. There are a spread of Eu–In bond distances ranging from 3.41–3.81 Å. There are two inequivalent Rh sites. In the first Rh site, Rh is bonded in a 9-coordinate geometry to nine In atoms. There are a spread of Rh–In bond distances ranging from 2.68–2.98 Å. In the second Rh site, Rh is bonded in a 9-coordinate geometry to nine In atoms. There are a spread of Rh–In bond distances ranging from 2.65–2.93 Å. There are nine inequivalent In sites. In the first In site, In is bonded in a linear geometry to two equivalent Eu, two equivalent Rh, and four equivalent In atoms. All In–In bond lengths are 3.12 Å. In the second In site, In is bonded in a 4-coordinate geometry to two equivalent Eu, two equivalent Rh, and eight In atoms. There are a spread of In–In bond distances ranging from 3.15–3.32 Å. In the third In site, In is bonded in a 2-coordinate geometry to two equivalent Eu, two equivalent Rh, and one In atom. The In–In bond length is 2.93 Å. In the fourth In site, In is bonded in a 2-coordinate geometry to two equivalent Eu, two equivalent Rh, and one In atom. In the fifth In site, In is bonded in a 4-coordinate geometry to four equivalent Rh atoms. In the sixth In site, In is bonded in a 2-coordinate geometry to two equivalent Eu, two equivalent Rh, and one In atom. In the seventh In site, In is bonded in a 1-coordinate geometry to three Rh atoms. In the eighth In site, In is bonded in a 2-coordinate geometry to two equivalent Eu, two equivalent Rh, and three In atoms. In the ninth In site, In is bonded in a distorted linear geometry to two equivalent Eu, two Rh, and two equivalent In atoms.