Materials Data on PuSi3 by Materials Project
PuSi3 crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Pu4+ is bonded to twelve equivalent Si+1.33- atoms to form a mixture of distorted corner and face-sharing PuSi12 cuboctahedra. There are six shorter (2.93 Å) and six longer (2.95 Å) Pu–Si bond lengths. Si+1.33- is bonded in a 10-coordinate geometry to four equivalent Pu4+ and six equivalent Si+1.33- atoms. There are two shorter (2.55 Å) and four longer (2.66 Å) Si–Si bond lengths.