- Synthesis and electrochemical studies of ferrocene-dithiafulvalenes (Fc-DTF) and 1,1′-bis(dithiafulvalenyl)ferrocene (DTF-Fc-DTF). An approach towards new conducting organic materials
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Novel π-conjugated donor compounds based on the strong electron-donating ferrocene moiety and dithiafulvalene donors exhibited increased electron donor ability. The ferrocenylketones 4a,b, 5, 8 and 9 were synthesized via described methods, and allowed to react with 2-dimethoxyphosphinyl-1,3-benzodithiole (13) in the presence of n-BuLi at -78°C in dry THF to afford the corresponding ferrocene-dithiafulvalenes 14a,b, 18, 19 and 1,1′-bis(benzo-1,3-dithiol-2-ylidene)ethyl]ferrocene (15). Electrochemical properties of these new donor compounds were studied using cyclic voltammetry (CV) and UV-Vis spectra. CV and absorption spectra of the new compounds were studied in comparison with ferrocene (6) and dibenzo-tetrathiafulvalene DB-TTF 3. Two-electron and three-electron redox behaviors were observed as two waves. The absorption spectra showed a red-shift with a slight increase in the absorption intensities.
- Sarhan, Abd El-Wareth,Nouchi, Yoshiyuki,Izumi, Taeko
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- New semiconducting benzo-TTF salts: Synthesis and physical properties
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The synthesis of new π-electron donors of benzotetrathiafulvalene derivatives 4-11 with one or two hydroxyl functions and additional sulfur or selenium atoms is described. Their redox potentials were measured by cyclic voltammetry. Radical cation salts (RCS) and charge-transfer complexes (CTC) were prepared and their conductivities were measured. Some of the RCS are semi-conductors. Georg Thieme Verlag Stuttgart.
- Boudiba, Louiza,Kaboub, Lakhemici,Gouasmia, Abdelkrim,Fabre, Jean M.
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p. 1291 - 1296
(2007/10/03)
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