Construction of cyclic multichromophoric arrays
In this project we investigate electronic energy transfer phenomena in closed polygonic multichromophoric arrays made via coordination-driven self – assembly between Bodipys (donors) and perylene bisimides (acceptors). The green (Bodipys) and red (perylenes) fluorescent building blocks are placed respectively at the corners and edges of the polygon. The inherent rigidity of the supramolecular skeleton combined with the high stereodirectionality of the metal (Pt) – pyridine bonding impose the long molecular axes of the adjacent dyads (Bodipy-Perylene) to be essentially perfectly orthogonal. The main subject is to explore the effect of orthogonal chromophoric orientation on the efficiency of energy transfer and to compare the results with theory.