Materials Data on Na3W by Materials Project
Na3W is Uranium Silicide-like structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. there are two inequivalent Na sites. In the first Na site, Na is bonded to four equivalent W atoms to form a mixture of distorted edge and corner-sharing NaW4 cuboctahedra. All Na–W bond lengths are 3.43 Å. In the second Na site, Na is bonded in a distorted square co-planar geometry to four equivalent W atoms. All Na–W bond lengths are 3.46 Å. W is bonded to twelve Na atoms to form a mixture of edge, corner, and face-sharing WNa12 cuboctahedra.
36 MATERIALS SCIENCE↗