Materials Data on PO4 by Materials Project
PO4 is Silicon tetrafluoride-like structured and crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of four phosphoric acid molecules. P is bonded in a tetrahedral geometry to four O atoms. All P–O bond lengths are 1.54 Å. There are four inequivalent O sites. In the first O site, O is bonded in a single-bond geometry to one P atom. In the second O site, O is bonded in a single-bond geometry to one P atom. In the third O site, O is bonded in a single-bond geometry to one P atom. In the fourth O site, O is bonded in a single-bond geometry to one P atom.