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Updated: Aug 19, 2026

Quantitative SERS Detection of Uric Acid via Formation of Precise Plasmonic Nanojunctions within Aggregates of Gold Nanoparticles and Cucurbit[n]uril
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通过SERS观察芳香分子和单个Au纳米体之间的π-Au相互作用,具有亚纳米间隙

Guoliang Zhou1,2, Pan Li1,3, Yuanhui Xiao4

  • 1Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China.

Analytical chemistry
|November 28, 2023
PubMed
概括

研究人员使用表面增强的拉曼光谱法 (SERS) 研究芳香分子与金纳米分子的相互作用. 这种方法为了解环境条件下的π-金属结合提供了高灵敏度.

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相关概念视频

¹H NMR: Long-Range Coupling01:27

¹H NMR: Long-Range Coupling

The coupling interactions of nuclei across four or more bonds are usually weak, with J values less than 1 Hz. While these are usually not observed in spectra, the presence of multiple bonds along the coupling pathway can result in observable long-range coupling.
In alkenes, spin information is communicated via σ–π overlap, as seen in allylic (four-bond) and homoallylic (five-bond) couplings. These coupling interactions are stronger when the σ bond is parallel to the alkene π orbitals.