Prominent Electron Transport Property Observed for Triply Fused Metalloporphyrin Dimer: Directed Columnar Liquid Crystalline Assembly by Amphiphilic Molecular Design

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• 作者：Tsuneaki Sakurai ; Keyu Shi ; Hiroshi Sato ; Kentaro Tashiro ; Atsuhiro Osuka ; Akinori Saeki ; Shu Seki ; Seiichi Tagawa ; Sono Sasaki ; Hiroyasu Masunaga ; Keiichi Osaka ; Masaki Takata ; Takuzo Aida
• 刊名：Journal of the American Chemical Society
• 出版年：2008
• 出版时间：October 22, 2008
• 年：2008
• 卷：130
• 期：42
• 页码：13812-13813
• 全文大小：195K
• 年卷期：v.130,no.42(October 22, 2008)
• ISSN：1520-5126

文摘

A triply fused copper porphyrin dimer, when site-specifically modified on its periphery with hydrophobic and hydrophilic wedges (1_C12/TEG), self-assembles into a columnar liquid crystalline (LC) mesophase over a wide-temperature range from −17 to 99 °C but gives rise to an amorphous solid when modified with only hydrophobic (1_C12/C12) or hydrophilic wedges (1_TEG/TEG). A LC film of 1_C12/TEG displays at 16 °C a top-class one-dimensional electron mobility (0.27 cm²/V·s), as evaluated from its maximum flash-photolysis time-resolved microwave conductivity.