Materials Data on Ce2Co7B3 by Materials Project

Abstract

Ce2Co7B3 crystallizes in the hexagonal P6/mmm space group. The structure is three-dimensional. there are three inequivalent Ce sites. In the first Ce site, Ce is bonded in a distorted hexagonal planar geometry to six equivalent Co atoms. All Ce–Co bond lengths are 2.90 Å. In the second Ce site, Ce is bonded in a 12-coordinate geometry to twelve equivalent Co and six equivalent B atoms. All Ce–Co bond lengths are 2.92 Å. All Ce–B bond lengths are 2.90 Å. In the third Ce site, Ce is bonded in a 6-coordinate geometry to twelve Co and six equivalent B atoms. There are six shorter (2.83 Å) and six longer (2.99 Å) Ce–Co bond lengths. All Ce–B bond lengths are 2.90 Å. There are three inequivalent Co sites. In the first Co site, Co is bonded in a 12-coordinate geometry to three equivalent Ce and six equivalent Co atoms. All Co–Co bond lengths are 2.49 Å. In the second Co site, Co is bonded in a distorted L-shaped geometry to two equivalent Ce, two equivalent Co, and two equivalent B atoms. Both Co–B bond lengths are 2.05 Å. In the third Co site, Co is bonded in a distorted square co-planar geometry to four Ce and four B atoms. All Co–B bond lengths are 2.08 Å. There are two inequivalent B sites. In the first B site, B is bonded in a 6-coordinate geometry to three equivalent Ce and six equivalent Co atoms. In the second B site, B is bonded in a 6-coordinate geometry to three equivalent Ce and six Co atoms.