ELECTRICAL-PROPERTIES AND STRUCTURAL DATA OF RADICAL-CATION SALTS AND CHARGE-TRANSFER COMPLEXES IN TTF AND TSF FAMILIES

This paper is a review of the electrical properties of organic materials containing unsymmetrically substituted TTF and TSF. Two series of these donors were prepared using a Wittig-type reaction with the sulfur compounds, and a cross-coupling method with their selenium analogues. Their radical-cation salts were synthesized by electrochemical oxidation and their charge-transfer complexes were obtained chemically using TCNQ and its 2,5-dimethylated derivative DMTCNQ. The crystal structures were determined by X-ray diffraction when single crystals were obtained. The electrical properties are correlated to the structural data. © 1990.