W3Si2 crystallizes in the tetragonal P4/mbm space group. There are two inequivalent W sites. In the first W site, W(1) is bonded in a square co-planar geometry to four equivalent Si(1) atoms. In the second W site, W(2) is bonded in a 6-coordinate geometry to six equivalent Si(1) atoms. Si(1) is bonded in a 9-coordinate geometry to two equivalent W(1), six equivalent W(2), and one Si(1) atom.
W3Si2 crystallizes in the tetragonal P4/mbm space group. There are two inequivalent W sites. In the first W site, W(1) is bonded in a square co-planar geometry to four equivalent Si(1) atoms. All W(1)-Si(1) bond lengths are 2.58 Å. In the second W site, W(2) is bonded in a 6-coordinate geometry to six equivalent Si(1) atoms. There are two shorter (2.55 Å) and four longer (2.57 Å) W(2)-Si(1) bond lengths. Si(1) is bonded in a 9-coordinate geometry to two equivalent W(1), six equivalent W(2), and one Si(1) atom. The Si(1)-Si(1) bond length is 2.51 Å.