After performing a control experiment to show that the absorption spectra of two separate solutions can be summed to give the absorption spectra of the summed concentration (see ESI), solutions of the LHC, chromophore and pillar, each in dichloromethane, were prepared at concentrations of 3 μM, 30 μM and 3 μM respectively. The chosen concentrations ensure the molar ratio of chromophore to pillar (10:1) is satisfied. Each solution was analysed in the Cary 5000 UV-Vis-NIR spectrophotometer.