Synthesis, Structure and Conductivity of Di[3,4,3′,4′-bis(ethylenedithio)-2,2′,5,5′-tetrathiafulvalenium]. Allylsulfonate Monohydrate

Electrochemical oxidation of 3,4,3',4'-bis(ethylenedithio)-2,2',5,5'-tetrathiafulvalene (abbr. ET) in the presence of allylsulfonate affords a new charge-transfer salt (ET) 2 (CH 2 =CH-CH 2 -SO 3 ).H 2 O. The crystal structure has been determined to be in orthorhombic crystal system, Pma2 space group. In the crystal of the title compound, ET cations adopt a α'-type packing pattern and organic counter anions form infinite chains by hydrogen bonds along the c-axis. This salt is a semiconductor and its room-temperature conductivity is 0.0489 Ω -1 m -1 .