Development of novel construction and multifunctional properties of organic supramolecular nanoassembly

2014 Fiscal Year Final Research Report

• Project/Area Number: 22245024
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Functional materials chemistry
• Research Institution: Tokyo Metropolitan University
• Principal Investigator: IYODA Masahiko 首都大学東京, 公私立大学の部局等, 特任教授 (50115995)
• Co-Investigator(Kenkyū-buntansha): TAKASE Masayoshi 首都大学東京, 大学院理工学研究科, 助教 (90516121) ; HASEGAWA Masashi 北里大学, 理学部, 講師 (20438120) ; OTANI Hiroyuki 横浜国立大学, 大学院環境情報研究院, 教授 (30213763)
• Co-Investigator(Renkei-kenkyūsha): SHIMIZU Hideyuki 首都大学東京, 大学院理工学研究科, 特任研究員 (10727697)
• Project Period (FY): 2010-05-31 – 2015-03-31
• Keywords: 超分子 / 有機π電子系 / 巨大環状分子 / ナノ集積体 / モルフォロジー / ナノファイバー / 複合機能 / 分子スイッチ

Outline of Final Research Achievements

In this project, we have developed a new concept for the construction of organic supramolecular nanoassembly and prepared key organic pi-electron systems for the studies on their multifunctional properties. We have successfully synthesized a series of giant conjugated macrocycles and constructed their self-assembled nanostructures. The most remarkable properties were obtained from pi-expanded macrocyclic oligothiophene 6-mer and 8-mer. The 6-mer showed a thermally reversible polymorphism, which was applied to either fluorescence switching or switching of field effect transistor (FET) activity and electrical conductivity. The 8-mer formed a Saturn-like complex with C60 in the solid state, and this complex exhibited repeatable and stable instantaneous response of photocurrent.

Free Research Field

化学