https://scholars.lib.ntu.edu.tw/handle/123456789/177702
標題: | Selective intermolecular zero-quantum coherence in high-resolution NMR under inhomogeneous fields | 作者: | Chen, Zhong Hou, Ting Chen, Zhi-Wei Hwang, Dennis-W. Hwang, Lian-Pin |
公開日期: | 2004 | 起(迄)頁: | 200-205 | 來源出版物: | Chemical Physics Letters 386 | 摘要: | A selective 2D intermolecular zero-quantum coherences pulse sequence, SEL-HOMOGENIZED sequence, was developed for high-resolution NMR spectra in inhomogeneous fields. The sequence designed to effectively suppress strong solvent signals & other trivial signals can greatly decrease the t1 noise artifacts. In the homogeneous-like 1D spectrum extracted from the 2D data, chemical shifts, coupling constants, multiplicity patterns, & relative peak areas are almost independent of the magnetic field inhomogeneity. Compared to the HOMOGENIZED sequence, the new sequence provides a total sensitivity enhancement of two times. It was also demonstrated that the theoretical predictions were in excellent agreement with the experimental results. |
URI: | http://ntur.lib.ntu.edu.tw//handle/246246/2006111501233041 | 其他識別: | 246246/2006111501233041 |
顯示於: | 化學系 |
在 IR 系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。