Materials Data on PHF4 by Materials Project
HPF4 is Magnesium structured and crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of four tetrafluorophosphanium molecules. P5+ is bonded in a distorted trigonal bipyramidal geometry to one H1- and four F1- atoms. The P–H bond length is 1.40 Å. There are a spread of P–F bond distances ranging from 1.56–1.64 Å. H1- is bonded in a single-bond geometry to one P5+ atom. There are four inequivalent F1- sites. In the first F1- site, F1- is bonded in a single-bond geometry to one P5+ atom. In the second F1- site, F1- is bonded in a single-bond geometry to one P5+ atom. In the third F1- site, F1- is bonded in a single-bond geometry to one P5+ atom. In the fourth F1- site, F1- is bonded in a single-bond geometry to one P5+ atom.