【摘要】 本文叙述了在FX—100核磁共振谱仪上进行的MLEV-16宽带去偶实验。实验表明:其去偶范围大大增加,效率明显提高,对常规质子去偶的¹³C谱实验所需要的去偶场B₂比谱仪原有的噪声去偶系统的去偶场B₂降低约一个数量级。并且,用谱仪原有的去偶功率实现了¹³C{¹⁹F}氟宽带去偶的¹³C谱的观测,去偶范围达14KHz,可以满足大部分氟化物的¹³C核磁共振研究的要求。更多还原

【Abstract】 The MLEV-16 broadband decoupling scheme is built up on FX-100 NMR spectrometer.By using this decoupling set, the decoupling range is greatly extended and decoupling efficiency is remarkably raised.when applied to a conventional proton decoupling( 13)C NMR experiment, the required decoupling feild for this scheme is reduced at least an order of magnitudein comparison with noise decoupling. Application of this scheme allows the decoupling of fluorine nuclei over 14KHz with primary decoupling feild of FX-100 NMR spectrometer ( about 7KHz), t fulfills a basic requirement for the (13)C {(19)F} NMR study of most fluorine compounds.更多还原