The frequency analysis of the BBPP data reveals that both the chromophore and LHC exhibit coherences around 600 cm -1 and 100 cm -1 , with no significant differences observed between the two samples. Given that the oscillations are present in the chromophore solution alone, the origin of these coherences can be isolated to the individual chromophore units, rather than interactions between the chromophore units in the LHC, or the chromophore and pillar. The 600 cm -1 frequency is consistent with a vibrational mode of the chromophore core, while the 100 cm -1 signal is likely associated with its substituent groups. As the BBPP experiments were carried out at room temperature, any electronic coherences are expected to be very short-lived, . The inset shows the same data over a larger time window.