Materials Data on ErB4Rh by Materials Project
ErRhB4 crystallizes in the orthorhombic Pbam space group. The structure is three-dimensional. Er3+ is bonded in a 2-coordinate geometry to fourteen B+1.50- atoms. There are a spread of Er–B bond distances ranging from 2.61–2.77 Å. Rh3+ is bonded in a 10-coordinate geometry to ten B+1.50- atoms. There are a spread of Rh–B bond distances ranging from 2.25–2.42 Å. There are four inequivalent B+1.50- sites. In the first B+1.50- site, B+1.50- is bonded in a 9-coordinate geometry to four equivalent Er3+, two equivalent Rh3+, and three B+1.50- atoms. There is one shorter (1.77 Å) and two longer (1.86 Å) B–B bond length. In the second B+1.50- site, B+1.50- is bonded in a 9-coordinate geometry to four equivalent Er3+, two equivalent Rh3+, and three B+1.50- atoms. There is one shorter (1.74 Å) and one longer (1.76 Å) B–B bond length. In the third B+1.50- site, B+1.50- is bonded in a 9-coordinate geometry to four equivalent Er3+, two equivalent Rh3+, and three B+1.50- atoms. The B–B bond length is 1.76 Å. In the fourth B+1.50- site, B+1.50- is bonded in a 9-coordinate geometry to two equivalent Er3+, four equivalent Rh3+, and three B+1.50- atoms. The B–B bond length is 1.73 Å.