کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7806983 1501649 2018 27 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Use of reverse cross-polarization for editing solid-state proton NMR spectra
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Use of reverse cross-polarization for editing solid-state proton NMR spectra
چکیده انگلیسی
We present here the use of the cross-polarization - reverse cross-polarization (CP-RCP) method for editing proton spectra by identifying protons attached exclusively to a nucleus such as carbon or nitrogen. Experiments have been done at moderate spinning speeds utilizing the Combined Rotation and Multi-Pulse Scheme (CRAMPS) technique which provided resolution of the spectral lines that is sufficient for several small molecular systems. This approach, in addition to being an editing tool, helps to increase resolution further and also leads to identifying protons such as the OH and the SH protons. Here we present results of the application of the CP-RCP scheme to systems at natural abundance of the nuclei 13C and 15N. The utility of the method has been illustrated for the case several amino acids, a tri-peptide and a synthesized cocrystal.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Structure - Volume 1168, 15 September 2018, Pages 49-55
نویسندگان
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