The results obtained from performing UV-Vis absorption spectroscopy on the chromophore, pillar and LHC are illustrated in Figure . The absorbance obtained for the LHC and chromophore are of equivalent appearance to those obtained in a previous publication with the presence of a peak at 532 nm due to the chromophore. A peak is present at ∼280 nm for the pillar compound. This peak is less prominent in the LHC absorption spectrum which is to be expected because the vibrational modes of the pillar-structure in the LHC are different to those of the pillar alone due to the attachment of the chromophores. Figure (b) compares the summed absorption spectra of the pillar and chromophore spectra obtained in (a) to the LHC spectra. Interestingly, a 40% reduction in absorbance is evident for the LHC compared with the chromophore. The observed reduction in absorbance is more prominent than what was observed for the control experiment discussed in the ESI warranting further investigation into the cause of this reduction.