Figure 6: Predicted Raman spectra for the 5 isomers of B440/− based on PBE0 functional with 6–311 + G* basis set.

(a): C2v B44 (I), (b): C2v B44− (I), (c): C1 B44 (II), (d): C1 B44− (II), (e): C1 B44 (III), (f): C1 B44− (III), (g): C2 B44 (IV), (h): C2 B44− (IV), (i): C1 B44 (V), (j): C1 B44− (V).