We discuss the intriguing photophysics of a giant molecular spoked wheel of pi-conjugated arylenealkynylene chromophores on the single-molecule level. This "molecular mesoscopic" tructure, C1878H2682, shows fast switching between the 12 identical chromophores since the fluorescence is unpolarised but only one chromophore emits at a time.
@article{arxiv.1612.03001,
title = {Interactions between pi-conjugated chromophores in a giant molecular spoked wheel},
author = {D. Wuersch and R. May and G. Wiederer and S. -S. Jester and S. Hoeger and J. Vogelsang and J. M. Lupton},
journal= {arXiv preprint arXiv:1612.03001},
year = {2016}
}