New TTF having adenine moiety as a nucleic acid base

New nucleobase-functionalized TTF derivatives, mono- and bis(2',3',5'-tri-tert-butyldimethylsiloxyladenosine-8-yl)-TTF, A-T and A-T-A (E/Z mixture), were prepared. Their oxidation potentials showed positive shift compared with that of TTF itself, implying weak electron-donating abilities. Alternated stacking type structures with a small degree of CT for A-T-TCNQ and with ionic natures for A-T-HCNAL, A-T-A-DDQ and A-T-A-HCNAL CT complexes were inferred from the electronic spectra.