避免噪声谱中的宽带辐射阻尼效应

IF 2.624
Kelsey Anne Marr, Alexej Jerschow
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引用次数: 0

摘要

辐射阻尼是核磁共振波谱中一个众所周知的现象。有几种策略可以最大限度地减少辐射阻尼的影响,这些策略主要集中在限制一种共振的影响(通常是水共振)。当在高浓度下检测具有许多共振的样品时,通常不能使用这种方法。一类系统的宽带性质的辐射阻尼导致的复杂性是深共晶溶剂(DESs)。DESs被认为是创新的溶剂系统,具有可调性和环境友好性等优点,具有从催化到药物输送的重要应用。利用核磁共振波谱技术研究这些体系的分子间效应是很有意义的。在这里,我们表明宽带辐射效应在这些系统中非常强,并确定了简单的策略,专门用于二维noesi核磁共振波谱,以重新获得量化这些系统中分子间相互作用的能力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Avoiding broadband radiation damping effects in NOESY spectra
Radiation damping is a well-known phenomenon in the context of NMR spectroscopy. Several strategies exist for minimizing the effects of radiation damping, which have mostly been focused on limiting the effects of one resonance (frequently the water resonance). When samples with many resonances are examined at high concentration, such approaches often cannot be used. One category of systems where the broadband nature of radiation damping leads to complications are deep eutectic solvents (DESs). DESs are considered innovative solvent systems that have several advantages such as tunability and environmental friendliness, with important applications ranging from catalysis to drug delivery. It is of interest to examine the intermolecular effects via NMR spectroscopy in these systems. Here we show that broadband radiation effects are very strong in these systems and identify simple strategies specifically for 2D NOESY NMR spectroscopy to regain the ability to quantify intermolecular interactions in these systems.
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CiteScore
1.90
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