Materials Data on Pr4Ge7 by Materials Project

Abstract

Pr4Ge7 crystallizes in the orthorhombic C222_1 space group. The structure is three-dimensional. there are three inequivalent Pr sites. In the first Pr site, Pr is bonded in a 9-coordinate geometry to eleven Ge atoms. There are a spread of Pr–Ge bond distances ranging from 3.11–3.75 Å. In the second Pr site, Pr is bonded in a 10-coordinate geometry to ten Ge atoms. There are a spread of Pr–Ge bond distances ranging from 3.12–3.38 Å. In the third Pr site, Pr is bonded in a 10-coordinate geometry to ten Ge atoms. There are a spread of Pr–Ge bond distances ranging from 3.10–3.31 Å. There are four inequivalent Ge sites. In the first Ge site, Ge is bonded in a 9-coordinate geometry to six Pr and three Ge atoms. There are a spread of Ge–Ge bond distances ranging from 2.50–2.76 Å. In the second Ge site, Ge is bonded in a 9-coordinate geometry to six Pr and three Ge atoms. There are one shorter (2.60 Å) and one longer (2.61 Å) Ge–Ge bond lengths. In the third Ge site, Ge is bonded in a 4-coordinate geometry to six Pr and three Ge atoms. The Ge–Ge bond length is 3.06 Å. In the fourth Ge site, Ge is bonded in a 8-coordinate geometry to six Pr and two equivalent Ge atoms.