Development of functional organoarsenic chemistry

2022 Fiscal Year Final Research Report

• Project/Area Number: 20H02812
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Review Section: Basic Section 35030:Organic functional materials-related
• Research Institution: Kyoto Institute of Technology
• Principal Investigator: Imoto Hiroaki 京都工芸繊維大学, 分子化学系, 准教授 (40744264)
• Project Period (FY): 2020-04-01 – 2023-03-31
• Keywords: 元素化学 / 有機化学 / 高分子化学 / 錯体化学 / 触媒化学 / 反応化学

Outline of Final Research Achievements

In this study, we devoted our efforts to elucidate the structure, function, and physical properties of organoarsenic compounds, synthesized based on practical synthetic methods. Specifically, we successfully created and characterized diverse new conjugated arsenic compounds and arsenic-containing metal complexes. In the case of conjugated arsenic compounds, we systematically investigated correlations between their structure and luminescent properties, dynamics in the excited state, and phosphorescent luminescence due to the heavy-atom effect. For arsenic ligand-containing metal complexes, the development of new synthetic routes for ligands significantly expanded the possible structures. As a result, we realized the construction of a library composed of various arsenic ligands, clarifying the luminescence, catalytic function, and stimulus responsiveness brought about by complexes of gold, copper, palladium, europium, and so on.

Free Research Field

有機元素化学

Academic Significance and Societal Importance of the Research Achievements

従来の有機機能化学の分野ではほとんど使われてこなかった元素である「ヒ素」に対して、実用性の高い合成ルートを開発したことで多くの化合物を得ることができ、実験的手法に基づいて研究することが可能になった。結果として、従来の元素構成では達成困難であった構造・機能・反応性を実現することができた。ヒ素は、世界中に広く分布しながらも有効活用されていない元素資源であり、これを用いた機能性物質群が構築できたことは社会的意義も大きい。