Materials Data on Zn10Co(B4Rh9)2 by Materials Project

Abstract

CoZn10(Rh9B4)2 crystallizes in the tetragonal P4/mbm space group. The structure is three-dimensional. there are five inequivalent Rh sites. In the first Rh site, Rh is bonded in a 8-coordinate geometry to four Zn and four B atoms. There are two shorter (2.69 Å) and two longer (2.85 Å) Rh–Zn bond lengths. There are two shorter (2.20 Å) and two longer (2.24 Å) Rh–B bond lengths. In the second Rh site, Rh is bonded in a 4-coordinate geometry to four equivalent Zn and four equivalent B atoms. All Rh–Zn bond lengths are 2.84 Å. All Rh–B bond lengths are 2.22 Å. In the third Rh site, Rh is bonded in a 8-coordinate geometry to six Zn and two equivalent B atoms. There are a spread of Rh–Zn bond distances ranging from 2.61–2.88 Å. Both Rh–B bond lengths are 2.12 Å. In the fourth Rh site, Rh is bonded in a 8-coordinate geometry to six Zn and two equivalent B atoms. There are a spread of Rh–Zn bond distances ranging from 2.59–2.75 Å. Both Rh–B bond lengths are 2.12 Å. In the fifth Rh site, Rh is bonded in a 8-coordinate geometry to two equivalent Co, four equivalent Zn, and two equivalent B atoms. Both Rh–Co bond lengths are 2.58 Å. There are two shorter (2.78 Å) and two longer (2.86 Å) Rh–Zn bond lengths. Both Rh–B bond lengths are 2.15 Å. Co is bonded in a body-centered cubic geometry to eight equivalent Rh atoms. There are four inequivalent Zn sites. In the first Zn site, Zn is bonded in a 11-coordinate geometry to eight Rh, one Zn, and two equivalent B atoms. The Zn–Zn bond length is 2.54 Å. Both Zn–B bond lengths are 2.62 Å. In the second Zn site, Zn is bonded in a 11-coordinate geometry to ten Rh and one B atom. The Zn–B bond length is 2.67 Å. In the third Zn site, Zn is bonded in a 12-coordinate geometry to eight Rh atoms. In the fourth Zn site, Zn is bonded in a body-centered cubic geometry to eight Rh atoms. There are two inequivalent B sites. In the first B site, B is bonded in a 7-coordinate geometry to six Rh and one Zn atom. In the second B site, B is bonded in a 6-coordinate geometry to six Rh and one Zn atom.