The First Spiroconjugated TTF- and TCNQ-Type Molecules: A New Class of Electroactive Systems?
journal contributionposted on 20.01.2005, 00:00 by Pilar Sandín, Angeles Martínez-Grau, Luis Sánchez, Carlos Seoane, Rosendo Pou-Amérigo, Enrique Ortí, Nazario Martín
Spiroconjugated TTF-type electron donors (13a−c) and TCNQ-type electron acceptors (10, 11) have been prepared from spiroquinone 9. Cyclic voltammetry reveals a relatively weak accepting ability for 10 and 11, and a strong electron-donor character for 13a−c. Whereas the spiroconjugation introduces a destabilization of the LUMO for compounds 9−11, the opposite is observed for compound 13, thus justifying the redox potential values.