Materials Data on LiH2NO3 by Materials Project
LiNH2O3 crystallizes in the monoclinic P2_1/c space group. The structure is two-dimensional and consists of two LiNH2O3 sheets oriented in the (0, 1, 0) direction. Li1+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Li–O bond distances ranging from 2.01–2.33 Å. N3+ is bonded in a distorted bent 120 degrees geometry to two O2- atoms. There is one shorter (1.26 Å) and one longer (1.27 Å) N–O bond length. There are two inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 1.00 Å. In the second H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 1.00 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a 3-coordinate geometry to two equivalent Li1+ and one N3+ atom. In the second O2- site, O2- is bonded in a water-like geometry to one Li1+ and one N3+ atom. In the third O2- site, O2- is bonded to two equivalent Li1+ and two H1+ atoms to form distorted corner-sharing OLi2H2 tetrahedra.