Materials Data on Er2CoGe2 by Materials Project
Er2CoGe2 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. there are two inequivalent Er sites. In the first Er site, Er is bonded in a 6-coordinate geometry to two equivalent Co and six Ge atoms. Both Er–Co bond lengths are 3.14 Å. There are a spread of Er–Ge bond distances ranging from 2.88–3.05 Å. In the second Er site, Er is bonded in a 2-coordinate geometry to four equivalent Co and seven Ge atoms. There are a spread of Er–Co bond distances ranging from 3.00–3.06 Å. There are a spread of Er–Ge bond distances ranging from 2.89–3.20 Å. Co is bonded in a 10-coordinate geometry to six Er and four Ge atoms. There are a spread of Co–Ge bond distances ranging from 2.38–2.53 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 9-coordinate geometry to seven Er, one Co, and one Ge atom. The Ge–Ge bond length is 2.67 Å. In the second Ge site, Ge is bonded in a 10-coordinate geometry to six Er, three equivalent Co, and one Ge atom. The Ge–Ge bond length is 2.79 Å.