NMR屏蔽张量的逆向计算
A converse approach to the calculation of NMR shielding tensors
摘要:
介绍了一种新的核磁共振屏蔽张量的第一性原理计算方法。这些是从相对于应用的微观,局部磁偶极子的轨道磁化的衍生物。该方法简单、通用,既可用于孤立系统,也可用于周期系统。简单的碳氢化合物,结晶金刚石,和液态水的计算结果表明,建立的方法和实验结果非常吻合。
英文摘要:
We introduce an alternative approach to the first-principles calculation of NMR shielding tensors. These are obtained from the derivative of the orbital magnetization with respect to the application of a microscopic, localized magnetic dipole. The approach is simple, general, and can be applied to either isolated or periodic systems. Calculated results for simple hydrocarbons, crystalline diamond, and liquid water show very good agreement with established methods and experimental results.
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