Kb. Simonsen et al., STABLE MACROCYCLIC AND TETHERED DONOR-ACCEPTOR SYSTEMS - INTRAMOLECULAR BIPYRIDINIUM AND TETRATHIAFULVALENE ASSEMBLIES, Journal of organic chemistry, 62(3), 1997, pp. 679-686
A series of compounds has been prepared in which a tetrathiafulvalene
(TTF)-derived donor is covalently tethered or bridged to one or more b
ipyridinium (viologen) accepters. The relative degree of charge transf
er observed in this series is discussed as a function of structure. Th
e greatest CT effect is seen in the cyclophanes 9a-c and 13.