Synthesis of bitetrathiafulvalenes with FeCl₃-mediated homo-coupling of tetrathiafulvalenylmagnesium bromide and formation of nanostructures from bitetrathiafulvalenes having long alkylthio chains

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• 作者：Yohei Honna ; Eigo Isomura ; Hideo Enozawa ; Masashi Hasegawa ; Masayoshi Takase ; Tohru Nishinaga ; Masahiko Iyoda
• 刊名：Tetrahedron Letters
• 出版年：2010
• 出版时间：27 January 2010
• 年：2010
• 卷：51
• 期：4
• 页码：679-682
• 全文大小：739 K

文摘

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 (σ_rt = 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.