Exploration of Novel Chiral Science based on Light, Magnetic Field and Vortex

2014 Fiscal Year Final Research Report

• Project/Area Number: 24350065
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Functional materials chemistry
• Research Institution: The University of Tokyo
• Principal Investigator: ISHII Kazuyuki 東京大学, 生産技術研究所, 教授 (20282022)
• Co-Investigator(Renkei-kenkyūsha): HAMBA Fujihiro 東京大学, 生産技術研究所, 教授 (20251473)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: キラリティー / 磁気キラル二色性 / 流体力学 / 光化学 / ホモキラリティー

Outline of Final Research Achievements

In this study, we have investigated magneto-chiral dichroism (MChD) and mechanical rotation-induced chirality.
We succeeded in observing MChD for photosynthetic bacteria and chiral chlorin J-aggregates, respectively. In addition, we constructed a novel MChD measurement system based on the pulse electromagnet, and proposed that peptide compounds with the exciton chirality should show MChD stronger than aromatic amino acids.
Fluid motions resulting from the mechanical rotation of a rotary evaporator were investigated by numerical analyses. Based on analyses of the circular dichroism spectra, we also calculated the supramolecular structure of the chiral J-aggregates of water-soluble porphyrins, and found that the helical chirality of the chiral J-aggregates was consistent with that of the calculated fluid motions.

Free Research Field

錯体化学、光化学、スピン化学