Synthesis of functional molecules for molecular architectonics and elucidation of structure-property relationship

2017 Fiscal Year Final Research Report

• Project Area: Molecular Architectonics: Orchestration of Single Molecules for Novel Function
• Project/Area Number: 25110004
• Research Category: Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
• Allocation Type: Single-year Grants
• Review Section: Science and Engineering
• Research Institution: Osaka University
• Principal Investigator: IE Yutaka 大阪大学, 産業科学研究所, 准教授 (80362622)
• Co-Investigator(Renkei-kenkyūsha): ASO Yoshio 大阪大学, 産業科学研究所, 教授 (60151065)
• Project Period (FY): 2013-06-28 – 2018-03-31
• Keywords: ナノ材料 / 有機化学 / 有機導体 / 少数電子素子 / 分子アーキテクトニクス

Outline of Final Research Achievements

Development of novel components for the realization of molecular architectonics has been become a research purpose of this project. In this context, we designed and synthesized new pi-conjugated systems for the use in “anchor” and “insulated molecular wire” units. The tetraphenylmethane-based tripodal structures with thiophene rings as anchoring functional groups were developed to function as hole-transporting anchor units, that is, these molecules fulfill not only the electronic communication between electrodes and molecules but also robust attachment to electrodes with controlling the molecular orientation. Structurally well-defined oligothiophenes were utilized as a key framework of molecular wires. The combination of cyclopenta[c]thiohene with orthogonally introduced alkyl-substituted fluorene substituents accomplished the encapsulation of derived oligothiophene backbones without disturbing effective conjugation, leading to the construction of insulated molecular wires.

Free Research Field

構造有機化学