54 research outputs found
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)
Triphosphatrisilacyclohexane als dreizähnige Coronanden in Cr- und Mo-Komplexen: frühes Stadium der Si-H-Aktivierung versus Phosphankoordination
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
Enantiomeric Resolution of Cycloenantiomeric Rotaxane, Topologically Chiral Catenane, and Pretzel-Shaped Molecules:Â Observation of Pronounced Circular Dichroism
Novel family of heterocyclic strained helixes. Cesium-assisted syntheses, conformational and chiroptical properties and geometries
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