Materials Data on Pu(CrSi)2 by Materials Project
PuCr2Si2 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Pu3+ is bonded in a body-centered cubic geometry to eight equivalent Si4- atoms. All Pu–Si bond lengths are 2.87 Å. Cr+2.50+ is bonded to four equivalent Si4- atoms to form a mixture of distorted edge and corner-sharing CrSi4 tetrahedra. All Cr–Si bond lengths are 2.41 Å. Si4- is bonded in a 9-coordinate geometry to four equivalent Pu3+, four equivalent Cr+2.50+, and one Si4- atom. The Si–Si bond length is 2.40 Å.
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