Conductive mixed-halide adducts of tetrathiafulvalene obtained by electrocrystallisation

Abstract

The electrocrystallised mixed-halide TTFBr_0·23^– I_0·46 and TTFBr_0·47I_0·24(TTF = tetrathiafulvalene) have Br:I ratios which are dependent on the solution composition, with the total halide stoicheiometries approximating the single-halide values in TTFBr_0·76 and TTFI_0·71, the maximum conductivities at 25 °C being intermediate between the single-halide values of 1600 and 42·5 Ω^–1, respectively (cf. 2800 and 34 Ω^–1cm^–1, respectively); single-axis structure data are comparable throughout.