Sheng S, van Halbeek H
Department of Chemistry, Georgia State University, Atlanta, Georgia, 30303-3083, USA.
J Magn Reson. 1998 Feb;130(2):296-9. doi: 10.1006/jmre.1997.1318.
We propose a phase-sensitive gradient-enhanced two-dimensional heteronuclear multiple-bond correlation (psge-2D HMBC) experiment for speedy, accurate, and precise measurement of 2JCH and 3JCH. The experiment does not suppress one-bond correlations. Rather, the value of a desired long-range JCH is obtained from the pertinent cross-peak pattern in the HMBC spectrum, using the corresponding 1JCH correlation pattern as reference. The application of the proposed experiment is illustrated for the trisaccharide raffinose.
我们提出了一种相敏梯度增强二维异核多键相关（psge - 2D HMBC）实验，用于快速、准确且精确地测量(^{2}J_{CH})和(^{3}J_{CH})。该实验不抑制一键相关。相反，利用相应的(^{1}J_{CH})相关模式作为参考，从HMBC谱中相关的交叉峰模式获得所需远程(J_{CH})的值。以三糖棉子糖为例说明了所提出实验的应用。
