Supramolekulare Strukturen zur Lichtabsorption

After a definition of and an introduction into supramolecular structures strategies are developed which lead to new material properties. The specific research topics discussed in this context and with this aim include chromoionophores, molecular switches, large cavities embraced by one or more azobenzene units and macrocyclic polyenes. It is demonstrated how light absorption can be manipulated by structural variations of the host structures and of the corresponding supramolecular complexes. The discussion is extended to new dyestuffs bearing small and large cavities, the light absorption of which can be manipulated and even switched selectively by matching metal ions and organic particles (host/guest interaction)

From Simplicity to Complexity in Chemistry - and Beyond

Dress A, Vögtle F, Müller A, eds. From Simplicity to Complexity in Chemistry - and Beyond. Vol Part 1. Braunschweig: Vieweg; 1996

Self-assembly of a light-harvesting antenna formed by a dendrimer, a Ru(II) complex, and a Nd(III) ion

A luminescence mediator: An unusual lanthanide complex, exploiting a dendrimer and a ruthenium(II) complex as ligands, collects ultraviolet and visible light and exhibits luminescence in the near infrared region (see picture, N Blue, Ru brown, O red, C gray). In the absence of the ruthenium component the dendrimer is unable to transfer energy to the NdIII ion, even though it is directly coordinated to it