V5Se4 is Titanium telluride structured and crystallizes in the tetragonal I4/m space group. There are two inequivalent V sites. In the first V site, V(1) is bonded in a distorted square co-planar geometry to four equivalent Se(1) atoms. In the second V site, V(2) is bonded to five equivalent Se(1) atoms to form a mixture of distorted edge and corner-sharing VSe5 square pyramids. Se(1) is bonded in a 6-coordinate geometry to one V(1) and five equivalent V(2) atoms.
V5Se4 is Titanium telluride structured and crystallizes in the tetragonal I4/m space group. There are two inequivalent V sites. In the first V site, V(1) is bonded in a distorted square co-planar geometry to four equivalent Se(1) atoms. All V(1)-Se(1) bond lengths are 2.64 Å. In the second V site, V(2) is bonded to five equivalent Se(1) atoms to form a mixture of distorted edge and corner-sharing VSe5 square pyramids. There are a spread of V(2)-Se(1) bond distances ranging from 2.46-2.53 Å. Se(1) is bonded in a 6-coordinate geometry to one V(1) and five equivalent V(2) atoms.