Energy transfer proceeds in orthogonal dyads in contrast to Förster’s theory and cannot be prohibited even by rigid interconnecting cage compounds such as cubane or diamantane.
Vibronic Intramolecular Resonant Energy Transfer along More than 5 nm: Synthesis of Dyads for a Re-Examination of the Distance Function of FRET
作者:Heinz Langhals、Christian Dietl
DOI:10.1021/acs.joc.1c02682
日期:2022.8.5
Dyads of chromophores with orthogonal transition moments and sequences of aliphatic cage-structures as spacers were prepared where resonance energytransfer (FRET) proceeded in contrast to Förster’s theory even until 58 Å. The distance dependence of the efficiency was re-examined by means of various functions; the commonly used R–6 dependence gave acceptable results, but a slightly larger exponent
FRET in Orthogonal, Increasingly Strain‐Rigidified Systems
作者:Heinz Langhals、Christian Dietl、Peter Mayer
DOI:10.1002/ijch.202100021
日期:2022.6
The influence of the geometry factor κ on the efficiency of energy transfer by FRET (Förster resonance energy transfer) was studied by means of dyads of benzoperylene and perylene interlinked by a spacer of the cage bicyclo-[2.2.2]octane. The electronic transition moments were arrangedorthogonally for extinguishing the energy transfer according to Förster's theory. In contrast to the theory energy