Solid-state terahertz rotation and properties of hydrocarbon bearings

2021 Fiscal Year Final Research Report

• Project/Area Number: 20K15239
• Research Category: Grant-in-Aid for Early-Career Scientists
• Allocation Type: Multi-year Fund
• Review Section: Basic Section 32020:Functional solid state chemistry-related
• Research Institution: The University of Tokyo
• Principal Investigator: Matsuno Taisuke 東京大学, 大学院理学系研究科(理学部), 助教 (80749143)
• Project Period (FY): 2020-04-01 – 2022-03-31
• Keywords: 分子ベアリング / 固体内回転 / 筒状分子 / 動的挙動

Outline of Final Research Achievements

This study, entitled "Solid-state terahertz rotation and properties of hydrocarbon bearings," aimed to elucidate the solid-state ultrafast molecular rotation and the properties that result from the rotation. In this study, we developed a new molecular bearing composed of a cylindrical host and nanodiamond guests that enables ultrafast rotation in solids. This molecular bearing exhibits solid-state inertial rotation with the rotational frequency of 1 terahertz. This result may lead to the emergence of novel solid-state properties.

Free Research Field

物理有機化学

Academic Significance and Societal Importance of the Research Achievements

分子運動は固体材料の物性と深く関係する．本研究で実現した「固体内慣性回転」や「固体内テラヘルツ回転」は過去に例のない現象であり，将来社会でも活用されうる有用な物性・機能を持つ材料の開発に繋がる．また，本研究で見出した分子性のハイブリッド型ナノカーボンピーポッドについての知見は，ナノカーボンの科学の分野にも波及効果を及ぼすものであり，広い分野に渡り学術的にも意義深いものである．