Abstract
The noncentrosymmetric p-carboxybenzenesulfonate anion afforded, in electro-oxidation experiments with bis(ethylene-dithio)tetrathiafulvalene (BEDT-TTF), the low-gap semiconductor (room-temperature conductivity: 18 Scm -1 ) mixed-valency salt BEDT-TTF z [O 3 S-C 6 H 4 -CO 2 H], which is noncentrosymmetric due to head-to-tail arrangement of the anions, whereas EDT-TTF-CONHMe (EDT-TTF = ethylene-dithiotetrathiafulvalene) afforded the fully oxidized centro-symmetric salt [EDT-TTF-CONHMe + ][HO 2 C-C 6 H 4 -SO 3 - ] in which the driving force for the crystal packing is the existence of strong hydrogen-bonding interactions between the anions and the amido groups of the cations.
Published Version
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