Materials Data on B4N2O11 by Materials Project
(B4NO9)2N2(O2)2 crystallizes in the monoclinic P2_1 space group. The structure is zero-dimensional and consists of two ammonia molecules, two oxygen molecules, and two B4NO9 clusters. In each B4NO9 cluster, there are four inequivalent B3+ sites. In the first B3+ site, B3+ is bonded in a trigonal planar geometry to three O2- atoms. There is two shorter (1.36 Å) and one longer (1.42 Å) B–O bond length. In the second B3+ site, B3+ is bonded in a trigonal planar geometry to three O2- atoms. There is two shorter (1.37 Å) and one longer (1.38 Å) B–O bond length. In the third B3+ site, B3+ is bonded in a trigonal planar geometry to three O2- atoms. There are a spread of B–O bond distances ranging from 1.36–1.38 Å. In the fourth B3+ site, B3+ is bonded in a trigonal planar geometry to three O2- atoms. There is one shorter (1.36 Å) and two longer (1.38 Å) B–O bond length. N5+ is bonded in a bent 120 degrees geometry to two O2- atoms. There is one shorter (1.19 Å) and one longer (1.46 Å) N–O bond length. There are nine inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one B3+ and one N5+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to one B3+ atom. In the third O2- site, O2- is bonded in a single-bond geometry to one B3+ atom. In the fourth O2- site, O2- is bonded in a single-bond geometry to one B3+ atom. In the fifth O2- site, O2- is bonded in a single-bond geometry to one N5+ atom. In the sixth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two B3+ atoms. In the seventh O2- site, O2- is bonded in a bent 150 degrees geometry to two B3+ atoms. In the eighth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two B3+ atoms. In the ninth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two B3+ atoms.