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An Unusually Shallow Distance‐Dependence for Triplet‐Energy Transfer
Author(s) -
Harriman Anthony,
Khatyr Abderrahim,
Ziessel Raymond,
Benniston Andrew C.
Publication year - 2000
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/1521-3773(20001201)39:23<4287::aid-anie4287>3.0.co;2-0
Subject(s) - superexchange , intramolecular force , electron transfer , chemistry , electron , chemical physics , range (aeronautics) , series (stratigraphy) , population , triplet state , acceptor , physics , atomic physics , photochemistry , condensed matter physics , materials science , stereochemistry , quantum mechanics , excited state , antiferromagnetism , demography , sociology , composite material , paleontology , biology
Long‐range interactions over 50 Å allow electron exchange to proceed in a series of conformationally constrained Ru/Os polypyridine complexes (see picture). The dynamics of the intramolecular electron exchange indicate that the connecting 1,4‐diethynylated‐2,5‐dialkoxybenzene units act independently as superexchange mediators. Even with five such units linked together there is no indication for the population of a connector‐based triplet state.