Materials Data on PaP2 by Materials Project
PaP2 crystallizes in the tetragonal P4/nmm space group. The structure is three-dimensional. Pa4+ is bonded in a body-centered cubic geometry to eight P2- atoms. There are four shorter (2.87 Å) and four longer (2.88 Å) Pa–P bond lengths. There are two inequivalent P2- sites. In the first P2- site, P2- is bonded in a distorted hexagonal planar geometry to four equivalent Pa4+ and two equivalent P2- atoms. There are one shorter (2.27 Å) and one longer (2.48 Å) P–P bond lengths. In the second P2- site, P2- is bonded in a 6-coordinate geometry to four equivalent Pa4+ and two equivalent P2- atoms.