In this publication we describe synthesis and characterization of a tightly packed trigonal dendrimer, which is built-up from thiophene and phenylene units. Single-crystal X-ray structure analyses and theoretical studies give evidence of through-space delocalization of π-electrons of peripheral (hetero)aromatic rings in toroidal and [4]catenated topology (blue rings). The results were published with the title „Highly crowded twisted thienylene-phenylene structures: Evidence for through-space orbital coupling in a [4]catenated topology“ in Advanced Science 2022 and were dedicated to Prof. Klaus Müllen on the occasion of his 75th birthday.
https://doi.org/10.1002/advs.202105785