Effects of π-Electron Systems on Optical Activity of Au11 Clusters Protected by Chiral Diphosphines,Bulletin of the Korean Chemical Society

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Effects of π-Electron Systems on Optical Activity of Au11 Clusters Protected by Chiral Diphosphines
Bulletin of the Korean Chemical Society ( IF 2.3 ) Pub Date : 2021-07-21 , DOI: 10.1002/bkcs.12363
Naoaki Shinjo ₁ , Shinjiro Takano ₁ , Tatsuya Tsukuda _{1,

2}

Affiliation

We systematically examined the effects of π-electron systems on the chiroptical activity of atomically precise gold clusters [Au₁₁(DP)₄L₂]⁺, where DP and L represent chiral diphosphines and achiral anionic ligands, respectively. Reducing the distance between the π-electron systems of the chiral DP and the Au₁₁ core enhanced the anisotropy factor of [Au₁₁(DP)₄L₂]⁺ in the range of 300–450 nm while extension of the π-electron system of the achiral L did not. This tendency supports our previous proposal that the proximity of the chiral π-electron system to the gold core amplifies the optical activity.

中文翻译：

π-电子系统对手性二膦保护的Au11团簇光学活性的影响

我们系统地研究了 π 电子系统对原子级精确金簇 [Au ₁₁ (DP) ₄ L ₂ ] ^{+ 的}手性光学活性的影响，其中 DP 和 L 分别代表手性二膦和非手性阴离子配体。减小手性DP的π电子系统与Au ₁₁核之间的距离，增强了[Au ₁₁ (DP) ₄ L ₂ ] ⁺在300-450 nm范围内的各向异性因子，同时扩展了π电子系统非手性 L 没有。这种趋势支持我们之前的提议，即手性 π 电子系统与金核的接近会放大光学活性。

更新日期：2021-09-23

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