The first spiroconjugated TTF- and TCNQ-type molecules: a new class of electroactive systems?
[Structure: see text] 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.
Sandín
Pilar
P
Departamento de Química Orgánica, Facultad de Química, Universidad Complutense, E-28040 Madrid, Spain.
Martínez-Grau
Angeles
A
Sánchez
Luis
L
Seoane
Carlos
C
Pou-Amérigo
Rosendo
R
Ortí
Enrique
E
Martín
Nazario
N