Intramolecular Electron Transfer in Donor Acceptor Systems Linked by a Flexible Chain

In this contribution some recent developments in the area of intramolecular excited state interactions will be discussed. In a first part the power of global compartmental analysis of fluorescence decays of intramolecular exciplex forming systems is exemplified. In a second part the use of photoacoustic spectroscopy in the study of intramolecular back electron transfer is illustrated and in a last part the alternative linking of a donor and an acceptor with a flexible silane chain will be compared with a similar donor and acceptor linked by an alkane chain.