In this article the Raman and Raman Optical Activity (ROA) spectra of a series of enantiomeric twisted
anthracenes are presented. The evolution of their vibrational spectra is understood in the context of the
variation of p-electron delocalization as a result of the twisting imparted by the belt structure and in
terms of the modulation of the resonance Raman/ROA effects which are photonic properties also tuned
by anthracene twisting. The Raman/ROA vibrational spectra are simulated by several theoretical
approaches to account for their vibrational and electronic properties including the theoretical evaluation
of resonance effects. We furthermore incorporate a vibrational and ROA activity dissection analysis as
provided in the Pyvib2 program valid to establish correlations among vibrational modes of different molecules
with different electronic structures and equivalent vibrational dynamics. This paper is one of the very first
attempts to use ROA spectroscopy in p-conjugated molecules with twisted and helical morphologies that
contrast with the well-known cases of ROA studies of chiral helicenes in which the impact of p-electron
delocalization in the electronic/photonic/vibrational (Raman/ROA) spectra is negligible.