Materials Data on Pu(CoSi)2 by Materials Project
PuCo2Si2 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Pu4+ is bonded in a body-centered cubic geometry to eight equivalent Si4- atoms. All Pu–Si bond lengths are 3.01 Å. Co2+ is bonded to four equivalent Si4- atoms to form a mixture of corner and edge-sharing CoSi4 tetrahedra. All Co–Si bond lengths are 2.28 Å. Si4- is bonded in a 9-coordinate geometry to four equivalent Pu4+, four equivalent Co2+, and one Si4- atom. The Si–Si bond length is 2.52 Å.