Synthesis and electronic properties of alternating alpha,alpha'-thiophene-phosphole oligomers.
[structure: see text] Alternating thiophene-phosphole oligomers up to seven rings in length have been synthesized. A regular decrease of the HOMO-LUMO gap is observed upon increasing the length of the pi-conjugated system. The nature of the P-moieties dramatically influences the optical and electrochemical properties of these phosphole-based oligomers. Electro-oxidation of derivative 5a afforded an electroactive polymer exhibiting reversible p-doping.
Hay
Caroline
C
Institut de Chimie, UMR 6509 and UMR 6510, CNRS-Université de Rennes 1, Campus de Beaulieu, 35042 Rennes Cedex, France.
Fave
Claire
C
Hissler
Muriel
M
Rault-Berthelot
Joëlle
J
Réau
Régis
R