从双脉冲电子自旋回波看三芳基甲基双环化合物中的夹间距离

IF 1.1 4区 物理与天体物理 Q4 PHYSICS, ATOMIC, MOLECULAR & CHEMICAL
Victoria N. Syryamina, Olga Yu. Rogozhnikova, Victor M. Tormyshev, Sergei A. Dzuba
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引用次数: 0

摘要

甲基三芳基(TAM)自由基和以 TAM 为基础的双自由基经常被用作不同应用中的自旋标签。脉冲双极性光谱(PDS)是为研究重要纳米尺度范围内的自旋间距而开发的。在此,我们介绍了双三芳基甲基双环状化合物的合成及其使用基于双脉冲电子自旋回波(2p ESE)光谱的简单 PDS 方法进行的研究。研究表明,尽管存在众所周知的死区时间、电子-核相互作用干扰和信号快速衰减等问题,这种方法仍能提供可靠的棘间距离信息。在这种方法中,强偶极子-偶极子耦合很容易在数据分析中得到考虑。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Interspin Distances in a Triarylmethyl Biradical from Two-Pulse Electron Spin Echo

Interspin Distances in a Triarylmethyl Biradical from Two-Pulse Electron Spin Echo

Triarylmethyl (TAM) radicals and TAM-based biradicals are often used as spin labels in different applications. Pulsed dipolar spectroscopy (PDS) is developed for studying interspin distances in the important nanoscale range. Here, we describe synthesis of bis-triarylmethyl biradical and its study using a simple PDS approach based on two-pulse electron spin echo (2p ESE) spectroscopy. It is shown that despite the well-known problems of dead time, interference of electron–nuclear interactions, and fast signal decay, this approach can provide reliable information for the interspin distances. In this approach, strong dipole–dipole coupling can be easily accounted for in the data analysis.

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来源期刊
Applied Magnetic Resonance
Applied Magnetic Resonance 物理-光谱学
CiteScore
1.90
自引率
10.00%
发文量
59
审稿时长
2.3 months
期刊介绍: Applied Magnetic Resonance provides an international forum for the application of magnetic resonance in physics, chemistry, biology, medicine, geochemistry, ecology, engineering, and related fields. The contents include articles with a strong emphasis on new applications, and on new experimental methods. Additional features include book reviews and Letters to the Editor.
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