Development of dynamic molecular systems using main-group element embedded polycyclic aromatic hydrocarbons

2022 Fiscal Year Final Research Report

• Project/Area Number: 20K15258
• Research Category: Grant-in-Aid for Early-Career Scientists
• Allocation Type: Multi-year Fund
• Review Section: Basic Section 33010:Structural organic chemistry and physical organic chemistry-related
• Research Institution: Osaka University (2021-2022); Nagoya University (2020)
• Principal Investigator: Ando Naoki 大阪大学, 産業科学研究所, 助教 (80848979)
• Project Period (FY): 2020-04-01 – 2023-03-31
• Keywords: ホウ素 / Lewis酸性 / 配位結合 / 刺激応答性 / Frustrated Lewis Pair

Outline of Final Research Achievements

In this study, we have explored the dynamic molecular systems using the Lewis acidity of a boron atom as a key essence. The Lewis acid-base equilibrium among the main-group element embedded polycyclic aromatic hydrocarbons (PAHs) was demonstrated by employing the highly Lewis acidic boron-containing PAH bearing a borole substructure. New boron-based acceptor units with olefin-borane interactions were synthesized. Noteworthy is that the donor-π-acceptor compounds with these units exhibited the Frustrated Lewis Pair-type reactivity. Throughout these findings, promising concepts have been presented as the basis for a new dynamic molecular system

Free Research Field

有機化学

Academic Significance and Societal Importance of the Research Achievements

可逆的な結合や相互作用は，動的な特性をもつ材料の開発に必要不可欠な構成要素である．新たな動作原理に基づいた動的分子系（動的化学システム）の創出は，基礎学術見地からの重要性のみならず，スマートマテリアルなどの応用研究を通して，科学技術の飛躍的発展に結びつく可能性を秘めている．本研究では，ホウ素のLewis酸性を活かした動的分子系の基礎となるコンセプトを提案した．これらの成果を利用した新機軸の分子系への展開が期待される．