Determination of spin-spin couplings from ultrahigh resolution 3D NMR spectra obtained by optimized random sampling and multidimensional Fourier transformation
Determination of spin-spin couplings from ultrahigh resolution 3D NMR spectra obtained by optimized random sampling and multidimensional Fourier transformation
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DOI：
10.1021/ja800622p
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发表时间：
2008-04-23
影响因子：
15
通讯作者：
Zhukov, Igor
中科院分区：
文献类型：
--
作者：
Kazimierczuk, Krysztof;Zawadzka, Anna;Zhukov, Igor
提出了在3D NMR实验中使用进化时空的随机抽样对骨干标量J耦合进行精确评估的示例。与同时获得的标准NMR实验相比，由于违反Nyquist定理的限制，记录的频谱在间接维度上表现出超高分辨率。获得的结果可以从单个多维NMR实验中对标量和残留偶性耦合进行简单准确的评估。
An example of precise evaluation of backbone scalar J couplings using random sampling of evolution time space in 3D NMR experiments is presented. The recorded spectrum, due to violation of the Nyquist theorem limitation, exhibits ultrahigh resolution in indirect dimensions compared to standard NMR experiment acquired at the same time. The obtained results enable simple and accurate evaluation of scalar and residual dipolar couplings from a single multidimensional NMR experiment.