Materials Data on B5H4 by Materials Project

Abstract

B5H4 crystallizes in the tetragonal I4_1/acd space group. The structure is zero-dimensional and consists of sixteen B5H4 clusters. there are five inequivalent B sites. In the first B site, B is bonded in a distorted single-bond geometry to one B and one H atom. The B–B bond length is 1.60 Å. The B–H bond length is 1.18 Å. In the second B site, B is bonded in a 6-coordinate geometry to six B atoms. There are a spread of B–B bond distances ranging from 1.60–1.96 Å. In the third B site, B is bonded in a 1-coordinate geometry to four B atoms. There is one shorter (1.62 Å) and one longer (1.67 Å) B–B bond length. In the fourth B site, B is bonded in a distorted single-bond geometry to two B and one H atom. The B–H bond length is 1.19 Å. In the fifth B site, B is bonded in a distorted bent 120 degrees geometry to two B and two H atoms. There is one shorter (1.21 Å) and one longer (1.22 Å) B–H bond length. There are four inequivalent H sites. In the first H site, H is bonded in a single-bond geometry to one B atom. In the second H site, H is bonded in a single-bond geometry to one B atom. In the third H site, H is bonded in a single-bond geometry to one B atom. In the fourth H site, H is bonded in a single-bond geometry to one B atom.