期刊
JOURNAL OF MAGNETIC RESONANCE
卷 282, 期 -, 页码 27-31出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jmr.2017.07.001
关键词
Scalar coupling; J value; PSYCHE; Echo planar spectroscopic imaging (EPSI); Structure elucidation
资金
- National Natural Science Foundation of China [11105114, 11375147, U1632274]
- Fundamental Research Funds for the Central Universities [20720170036]
Proton-proton scalar coupling plays an important role in molecular structure elucidation. Many methods have been proposed for revealing scalar coupling networks involving chosen protons. However, determining all J(HH) values within a fully coupled network remains as a tedious process. Here, we propose a method termed as simultaneous multi-slice selective J-resolved spectroscopy (SMS-SEJRES) for simultaneously measuring JHH values out of all coupling networks in a sample within one experiment. In this work, gradient-encoded selective refocusing, PSYCHE decoupling and echo planar spectroscopic imaging (EPSI) detection module are adopted, resulting in different selective J-edited spectra extracted from different spatial positions. The proposed pulse sequence can facilitate the analysis of molecular structures. Therefore, it will interest scientists who would like to efficiently address the structural analysis of molecules. (C) 2017 Elsevier Inc. All rights reserved.
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