Materials Data on Eu(Cu2Sn)2 by Materials Project
EuCu4Sn2 crystallizes in the tetragonal I4/mcm space group. The structure is three-dimensional. Eu is bonded in a 8-coordinate geometry to eight equivalent Cu atoms. All Eu–Cu bond lengths are 3.77 Å. Cu is bonded in a 9-coordinate geometry to two equivalent Eu, three equivalent Cu, and four equivalent Sn atoms. There are one shorter (3.05 Å) and two longer (3.08 Å) Cu–Cu bond lengths. There are a spread of Cu–Sn bond distances ranging from 3.11–3.22 Å. Sn is bonded in a 8-coordinate geometry to eight equivalent Cu atoms.