Author/Authors :
Honna، نويسنده , , Yohei and Isomura، نويسنده , , Eigo and Enozawa، نويسنده , , Hideo and Hasegawa، نويسنده , , Masashi and Takase، نويسنده , , Masayoshi and Nishinaga، نويسنده , , Tohru and Iyoda، نويسنده , , Masahiko، نويسنده ,
Abstract :
The FeCl3-mediated homo-coupling of 4,5-bis(alkylthio)-4′-tetrathiafulvalenylmagnesium bromide 5 produced the corresponding bitetrathiafulvalene derivatives 2a–d in moderate yields (25–51%). Bitetrathiafulvalenes 2c and 2d having long alkylthio chains formed nanostructures and showed bulk electric conductivities (σrt = 2.6 − 8.0 × 10−5 S cm−1) in the neutral state owing to the fastener effect. Interestingly, the nanofiber of tetrakis(dodecylthio)bitetrathiafulvalene 2d exhibited a p-type semiconductivity as detected by AFM.
