APPLICATIONS OF THE 1,3-DITHIOLE UNIT IN A POST-TTF ERA

Research New: The versatile 1,3-dithiole (DT) ring system probably hol ds the record among heterocyclic systems for the most widespread use i n modern materials science. Interest in derivatives of DT and the 1,3- dithiolium cation DT+ was boosted in the past by the discovery of meta l-like conductivity in the charge-transfer complex TTF-TCNQ and superc onductivity in cation radical salts of TMTSF and BEDT-TTF. The authors examine some of the new functionalized pi-donor systems based on the TTF framework and comment on possible applications as sensors, molecul ar shuttles, organic ferromagnets and electroactive Langmuir-Blodgett films.