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Updated: Jul 19, 2026

Exploring the Radical Nature of a Carbon Surface by Electron Paramagnetic Resonance and a Calibrated Gas Flow
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表面活性剂在水溶液中的声化学:一个EPR自旋陷研究

J Z Sostaric1, P Riesz

  • 1Radiation Biology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA. sostarij@mail.nih.gov

Journal of the American Chemical Society
|November 1, 2001
PubMed
概括

表面活性剂的吉布斯表面过剩并不能预测它们在声解过程中的分解. 相反,化学结构和接口行为决定了这些分子在水溶液中如何分解.

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Electron Paramagnetic Resonance (EPR) Spectroscopy: Organic Radicals01:17

Electron Paramagnetic Resonance (EPR) Spectroscopy: Organic Radicals

Ideally, an unpaired electron shows a single peak in the EPR spectrum due to the transition between the two spin energy states. However, coupling interactions can occur between the spins of the unpaired electron and any neighboring spin-active nuclei. This hyperfine coupling results in hyperfine splitting, where the EPR signal is split into multiplets. The signals split into 2nI + 1 peaks, where n is the number of equivalent nuclei and I is the nuclear spin. These splitting patterns provide...