Materials Data on Ca(H2N)2 by Materials Project
Ca(NH2)2 crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of four calcium;azanide molecules. Ca2+ is bonded in a 2-coordinate geometry to two N3- atoms. There are one shorter (2.45 Å) and one longer (2.49 Å) Ca–N bond lengths. There are two inequivalent N3- sites. In the first N3- site, N3- is bonded in a distorted water-like geometry to one Ca2+ and two H1+ atoms. Both N–H bond lengths are 1.03 Å. In the second N3- site, N3- is bonded in a distorted water-like geometry to one Ca2+ and two H1+ atoms. Both N–H bond lengths are 1.03 Å. There are four inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the second H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the third H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the fourth H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom.