摘要
本文介绍一种~1H—^(13)C远程极化转移的脉冲序列.在JEOL FX—90QNMR波谱仪上实现了这种技术.对一些典型化合物的测定表明,选择性非灵敏核的远程极化转移增强法(SEL1NEPT)在测定季碳原子和进行谱带归属中,是一个有力的工具.
A pulse sequence of polarization transfer via long-range 1H-13C couplings is introduced. This technique has been carried out on a JEOL FX-90Q NMR spectrometer. It is demonstrated that the selective insensitive nuclei enhancement by polarization transfer via long-range 1H - 13C couplings (SELINEPT) is a powerfull tool for measuring quaternary carbon atoms and assignment of the peaks in 13C spectra through determining some model compounds.
出处
《波谱学杂志》
CAS
CSCD
1989年第2期251-254,共4页
Chinese Journal of Magnetic Resonance
