Materials Data on P4O7 by Materials Project
P4O7 crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of four tetraphosphorus heptaoxide molecules. there are four inequivalent P+3.50+ sites. In the first P+3.50+ site, P+3.50+ is bonded in a distorted trigonal non-coplanar geometry to three O2- atoms. There is two shorter (1.66 Å) and one longer (1.70 Å) P–O bond length. In the second P+3.50+ site, P+3.50+ is bonded in a distorted trigonal non-coplanar geometry to three O2- atoms. There is two shorter (1.66 Å) and one longer (1.70 Å) P–O bond length. In the third P+3.50+ site, P+3.50+ is bonded in a distorted trigonal non-coplanar geometry to three O2- atoms. There is two shorter (1.66 Å) and one longer (1.70 Å) P–O bond length. In the fourth P+3.50+ site, P+3.50+ is bonded in a tetrahedral geometry to four O2- atoms. There are a spread of P–O bond distances ranging from 1.46–1.61 Å. There are seven inequivalent O2- sites. In the first O2- site, O2- is bonded in a bent 120 degrees geometry to two P+3.50+ atoms. In the second O2- site, O2- is bonded in a bent 120 degrees geometry to two P+3.50+ atoms. In the third O2- site, O2- is bonded in a bent 120 degrees geometry to two P+3.50+ atoms. In the fourth O2- site, O2- is bonded in a single-bond geometry to one P+3.50+ atom. In the fifth O2- site, O2- is bonded in a bent 120 degrees geometry to two P+3.50+ atoms. In the sixth O2- site, O2- is bonded in a bent 120 degrees geometry to two P+3.50+ atoms. In the seventh O2- site, O2- is bonded in a bent 120 degrees geometry to two P+3.50+ atoms.