在Au19纳米集群中,呈现出一个V形基尼尔黄金图案
Xian-Kai Wan1, Qing Tang, Shang-Fu Yuan
1State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University , Xiamen, Fujian 361005, P. R. China.
Journal of the American Chemical Society
|December 30, 2014
概括
研究人员合成了一种新的金纳米集群,Au19,具有独特的V形基尼尔金图案. 这一发现促进了对金纳米集群结构和属性的理解.
科学领域:
- 无机化学 无机化学
- 材料科学 材料科学 材料科学
- 纳米技术 纳米技术
背景情况:
- 黄金纳米集群由于其独特的光学和电子特性而引起人们的兴趣.
- 了解金纳米集群的结构-属性关系对于其应用至关重要.
研究的目的:
- 合成和表征一种具有独特结构动机的新型金纳米集群.
- 为了研究新的金纳米集群的电子和光学特性.
主要方法:
- [Au19(PhCC) 9 ((Hdppa) 3) ((SbF6) 2金纳米团的合成.
- 单晶X射线结构分析.
- 时间依赖密度函数理论 (TD-DFT) 对光学吸收和轨道分析的计算.
主要成果:
- 一个新的Au19纳米集群成功合成和结构特征.
- 在中发现了一种独特的V形基尼尔金图案,这是首次观察到的.
- Au19星团显示了1.25和2.25 eV的两个主要的光学吸收波段.
- 轨道分析显示,乙烯 (PhCC-) 组在星团边界轨道中积极参与.
结论:
- 新合成的Au19纳米团及其新的基尼尔黄金基因为基尼尔黄金接口提供了新的见解.
- 这项工作为发现具有可调节性质的基尼尔保护黄金集群的新类别开辟了道路.
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