Stepwise versus direct long-range charge separation in molecular triads
Trifunctional electron donor - donor - acceptor molecules are described in which photoinduced charge separation, D2 - D1 - A* → D2 - D1+ - A- , is followed by a charge migration step D
Willemse,Piet,Warman,Hartl,Verhoeven,Brouwer
p. 3721 - 3730
(2007/10/03)
Synthesis and exploratory photophysical investigation of donor-bridge-acceptor systems derived from N-substituted 4-piperidones
We report a two-step synthesis for N-aryl- and N-alkyl-substituted 4-piperidones, in which the N substituent can easily be varied.A number of intramolecular donor-acceptor systems was synthesized from these piperidones by conversion of the carbonyl functionality.The influence of the N-aryl donor on the electronic absorption and fluorescence spectra was investigated systematically.It was concluded that some systems can be used as efficient fluorescent probes with a high sensitivity for solvent polarity.
Scherer, T.,Hielkema, W.,Krijnen, B.,Hermant, R. M.,Eijckelhoff, C.,et al.
p. 535 - 548
(2007/10/02)
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