Development of external-responsive soft crystals using the properties of silicon-silicon bond

2022 Fiscal Year Final Research Report

• Project Area: Soft Crystals: Science and Photofunctions of Easy-Responsive Systems with Felxibility and Higher-Ordering
• Project/Area Number: 17H06369
• 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: The University of Tokyo
• Principal Investigator: Yamanoi Yoshinori 東京大学, 大学院理学系研究科(理学部), 准教授 (20342636)
• Project Period (FY): 2017-06-30 – 2022-03-31
• Keywords: ジシラン結合 / ケイ素 / 外部刺激応答性

Outline of Final Research Achievements

Aromatic disilanes are expected to change their structure and physical properties in conjunction with a weak external stimulus due to the flexibility of the Si-Si single bond and the extension of the conjugated chain due to σ-π conjugation. In this study, we investigated the structural and photophysical properties of cyclic and linear aromatic disilanes induced by external stimuli and theoretical considerations. Specifically, we found mechanochromic luminescence, laser wavelength conversion, and thermosalient phenomena.

Free Research Field

有機元素化学

Academic Significance and Societal Importance of the Research Achievements

本研究では、我々が開発した手法で芳香族オリゴシラン類を効率良く合成し、外部刺激による構造変化や光物性変化を調査した。すでに様々な有機ケイ素化合物の合成と光物性の研究で有用な結果を得ており、研究期間内に当初計画の大半を達成した。様々な共同研究を通し、本研究課題を遂行することによって、ソフトクリスタルの分野で貢献できた。