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Front Cover: FRET Pairs with Fixed Relative Orientation of Chromophores (Eur. J. Org. Chem. 26/2016)
Author(s) -
Wessig Pablo,
Behrends Nicole,
Kumke Michael U.,
Eisold Ursula
Publication year - 2016
Publication title -
european journal of organic chemistry
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 0.825
H-Index - 155
eISSN - 1099-0690
pISSN - 1434-193X
DOI - 10.1002/ejoc.201670261
Subject(s) - förster resonance energy transfer , chemistry , chromophore , acceptor , fluorescence , cover (algebra) , crystallography , photochemistry , orientation (vector space) , energy transfer , stereochemistry , chemical physics , optics , physics , condensed matter physics , geometry , mechanical engineering , mathematics , engineering
The cover picture shows an unprecedented connection of two fluorescent dyes by an oligospiro‐thioketal (OSTK) rod. These dyes are part of a FRET (Förster resonance energy transfer) pair, and a coumarin chromophor functions as the donor, whereas a [1,3]dioxolo[4,5‐ f ][1,3]benzodioxole (DBD) chromophor forms the acceptor. The outstanding feature of these FRET rods is the fixed relative orientation of the transition moments of the dyes due to the rigidity of the rod backbone. Moreover, because the transition moments of the dyes are almost collinear, the orientation factor κ 2 nearly reaches the maximum possible value of 4. Details on the synthesis of different FRET rods and their photophysical properties are discussed in the article by P. Wessig, M. U. Kumke et al. on p. 4476 ff .