Development of New Molecular Materials Based on Visible Light Responsive p-Single Bonded species

2023 Fiscal Year Final Research Report

• Project/Area Number: 21H01921
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Review Section: Basic Section 33010:Structural organic chemistry and physical organic chemistry-related
• Research Institution: Hiroshima University
• Principal Investigator: Abe Manabu 広島大学, 先進理工系科学研究科(理), 教授 (30273577)
• Project Period (FY): 2021-04-01 – 2024-03-31
• Keywords: π単結合 / 可視吸収 / 酸化還元活性

Outline of Final Research Achievements

The functionality of molecules and materials arises from their electronic structure and three-dimensional shape. In this study, we have investigated π-conjugated compounds that we independently discovered. By substituting functional groups, modifying molecular skeletons, and considering solvent effects, we extended their lifetimes and isolated them. We conducted optical property measurements, photoelectron spectroscopy, nuclear magnetic resonance measurements, and even X-ray crystallography to reveal the complete picture of their electronic and molecular structures. These efforts have led to the development of molecular materials that respond to light, such as solar cells, luminescent materials, and nonlinear optical materials.

Free Research Field

物理有機化学

Academic Significance and Societal Importance of the Research Achievements

分子・物質の機能は，その電子構造と3次元的な形に由来する．本研究では，平面４配位炭素をもつπ単結合(C-π-C)の創製と，その新奇なπ結合様式 が小さなπ電子系にも関わらず，可視-近赤外領域に強い光吸収機能を示すことを明らかにした．本研究では，独自に見出してきたπ単結合化合物を，置換基，分子骨格，並びに媒質効果によって長寿命化／単離し，光物性測定，光電子分光，核磁気共鳴測定，さらには，Ｘ線構造解析を行い，その電子構造と分子構 造の全貌を明らかにすることができた