A promising phenomenon attributed to homoconjugation in symmetrical iptycenes is an enhancement of π-π* oscillator strength due to cooperative through-space interactions between chromophores. Experimentally this is observed as a significantly greater than factor of three increase in extinction coefficient (ɛ) compared with a single fin congener. Recently, we extended this phenomenon to ICT transitions. Upon trimerization of a fluorescent luminophore through a homoconjugated iptycene core, large enhancements in ICT parameters such as ɛ, kr, and PLQY (i.e. radiative transitions) were observed.