Materials Data on Np(CrSi)2 by Materials Project
Np(CrSi)2 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Np3+ is bonded in a distorted body-centered cubic geometry to eight equivalent Si4- atoms. All Np–Si bond lengths are 3.01 Å. Cr+2.50+ is bonded to four equivalent Si4- atoms to form a mixture of corner and edge-sharing CrSi4 tetrahedra. All Cr–Si bond lengths are 2.38 Å. Si4- is bonded in a 9-coordinate geometry to four equivalent Np3+, four equivalent Cr+2.50+, and one Si4- atom. The Si–Si bond length is 2.34 Å.
36 MATERIALS SCIENCE↗