Materials Data on Tb2CoGe2 by Materials Project

Abstract

Tb2CoGe2 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. there are two inequivalent Tb sites. In the first Tb site, Tb is bonded in a 6-coordinate geometry to two equivalent Co and six Ge atoms. Both Tb–Co bond lengths are 3.19 Å. There are a spread of Tb–Ge bond distances ranging from 2.91–3.10 Å. In the second Tb site, Tb is bonded in a 2-coordinate geometry to four equivalent Co and seven Ge atoms. There are a spread of Tb–Co bond distances ranging from 3.03–3.12 Å. There are a spread of Tb–Ge bond distances ranging from 2.93–3.24 Å. Co is bonded in a 10-coordinate geometry to six Tb and four Ge atoms. There are a spread of Co–Ge bond distances ranging from 2.40–2.55 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 9-coordinate geometry to seven Tb, one Co, and one Ge atom. The Ge–Ge bond length is 2.70 Å. In the second Ge site, Ge is bonded in a 10-coordinate geometry to six Tb, three equivalent Co, and one Ge atom. The Ge–Ge bond length is 2.85 Å.