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NF2H is alpha oxygen-derived structured and crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of four hydrofluoric acid molecules and four monofluoroamine molecules.
NF2H is Ammonia-derived structured and crystallizes in the orthorhombic Pca2_1 space group. The structure is zero-dimensional and consists of four difluoroamine molecules. N1+ is bonded in a distorted trigonal non-coplanar geometry to one H1+ and two F1- atoms. The N–H bond length is 1.04 Å. Both N–F bond lengths are 1.42 Å. H1+ is bonded in a single-bond geometry to one N1+ atom. There are two inequivalent F1- sites. In the first F1- site, F1- is bonded in a single-bond geometry to one N1+ atom. In the second F1- site, F1- is bonded in a single-bond geometry to one N1+ atom.