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Radical cation salts composed of a bis(ethylenedithio)tetrathiafulvalene (ET) donor with homo-/heterosubstituted Cl/CN anilic acids as purely organic molecular conducting materials formulated as [BEDT-TTF] 2 [HClCNAn] ( 1 ) and [BEDT-TTF][HCl 2 An] ( 2 ) have been prepared by electrocrystallization. Compounds 1 and 2 crystallized in the monoclinic space group P 2/ c for 1 and I 2 /a for 2, showing segregated donor-anion layers arranged in a α′-type donor packing pattern ( 1 ) and twisted parallel columns ( 2 ), respectively. Single-crystal conductivity measurements show that 1 is a semiconductor with room-temperature conductivity of 10 –2 S cm –1 and an activation energy E a of 1900 K.
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Sahadevan et al. (2017) studied this question.
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