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Cautionary note: Linewidth effect in dynamic NMR
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DOI：10.1016/j.saa.2010.07.006.png)
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摘要
En 中文
In using NMR spectroscopy to evaluate the effects of kinetic processes taking place in the solute molecules being studied, one must estimate the inherent width w of each line, which is hidden from view throughout the kinetic thermal region due to the line-width broadening effected by the processes. We have herein built a self-consistent model function w(T) to attempt to evaluate the variation in the Arrhenius activation energy obtained with the model parameters present in w(T). As it turns out, a sizable number of such line-width parameters yields excellent spectral fits, and these lead to a considerable range of possible activation energies. (C) 2010 Elsevier B.V. All rights reserved.
Keyword:
Dynamic NMR
Diphenylpicrylhydrazine
Hindered rotation
Line-width effect
Activation parameters
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期刊
IF:
4.6
论文数:
2.4W
被引数:
5.5W
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