期刊
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
卷 7, 期 5, 页码 783-788出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.jpclett.6b00179
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资金
- MEXT/JSPS [15H037790, 15K13642, 15H010870]
- Matching Planner Program from JST [MP27215667549]
- Shorai Foundation for Science and Technology
- Kurata Memorial Hitachi Science and Technology Foundation
- Tokuyama Science Foundation
- Toyota Physical and Chemical Research Institute
- Iketani Science and Technology Foundation
- Izumi Science and Technology Foundation
- Grants-in-Aid for Scientific Research [15K13642, 15H01087, 15H03779] Funding Source: KAKEN
Hexaarylbenzenes (HABs) have greatly attracted much attention due to their unique propeller-shaped structure and potential application in materials science, such as liquid crystals, molecular capsules/rotors, redox materials, nonlinear optical materials, as well as molecular wires. Less attention has however been paid to their propeller chirality. By introducing small point-chiral group(s) at the periphery of HABs, propeller chirality was effectively induced, provoking strong Cotton effects in the circular dichroism (CD) spectrum. Temperature and solvent polarity manipulate the dynamics of propeller inversion in solution. As such, whizzing toroids become more substantial in polar solvents and at an elevated temperature, where radial aromatic rings (propeller blades) prefer orthogonal alignment against the central benzene ring (C-6 core), maximizing toroidal interactions.
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