Materials Data on Tb11Ge10 by Materials Project
Tb11Ge10 is delta Molybdenum Boride-like structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. there are four inequivalent Tb sites. In the first Tb site, Tb is bonded in a 7-coordinate geometry to seven Ge atoms. There are a spread of Tb–Ge bond distances ranging from 2.89–3.37 Å. In the second Tb site, Tb is bonded in a 7-coordinate geometry to seven Ge atoms. There are a spread of Tb–Ge bond distances ranging from 2.81–3.48 Å. In the third Tb site, Tb is bonded in a 8-coordinate geometry to eight Ge atoms. There are four shorter (3.23 Å) and four longer (3.28 Å) Tb–Ge bond lengths. In the fourth Tb site, Tb is bonded in a 7-coordinate geometry to seven Ge atoms. There are a spread of Tb–Ge bond distances ranging from 2.93–3.12 Å. There are five inequivalent Ge sites. In the first Ge site, Ge is bonded in a 6-coordinate geometry to eight Tb atoms. In the second Ge site, Ge is bonded in a 9-coordinate geometry to eight Tb atoms. In the third Ge site, Ge is bonded in a 9-coordinate geometry to seven Tb and two equivalent Ge atoms. Both Ge–Ge bond lengths are 2.62 Å. In the fourth Ge site, Ge is bonded in a 8-coordinate geometry to eight Tb atoms. In the fifth Ge site, Ge is bonded in a 9-coordinate geometry to eight Tb and one Ge atom. The Ge–Ge bond length is 2.58 Å.