A high-resolution C-13 3D CSA-CSA-CSA correlation experiment by means of magic angle turning
文献类型:期刊论文
作者 | Hu, JZ ; Ye, CH ; Pugmire, RJ ; Grant, DM |
刊名 | JOURNAL OF MAGNETIC RESONANCE
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出版日期 | 2000 |
卷号 | 145期号:2页码:230 |
关键词 | CHEMICAL-SHIFT ANISOTROPY TENSOR PRINCIPAL VALUES NUCLEAR-MAGNETIC-RESONANCE NMR-SPECTROSCOPY ORIENTATION DISTRIBUTIONS MOLECULAR-ORIENTATION POWDERED SOLIDS DECODER NMR SIDE-BAND X-RAY |
ISSN号 | 1090-7807 |
通讯作者 | Hu, JZ: Univ Utah, Dept Chem, Salt Lake City, UT 84112 USA. |
中文摘要 | It is shown in this paper that a previously reported 90 degrees sample dipping C-13 2D CSA-CSA correlation experiment may be carried out alternatively by employing constant slow sample rotation about the magic angle axis and by synchronizing the read pulse to 1/3 of the rotor cycle. A high-resolution 3D CSA-CSA-CSA correlation experiment based on the magic angle turning technique is reported in which the conventional 90 degrees 2D CSA-CSA powder pattern for each carbon in a system containing a number of inequivalent carbons may be separated according to the isotropic chemical shift value. The technique is demonstrated on 1,2,3-trimethoxybenzene in which all of the overlapping powder patterns that cannot be segregated by the 2D CSA-CSA experiment are resolved successfully by the 3D CSA-CSA-CSA experiment, including even the two methoxy groups (M-1 and M-3) whose isotropic shifts, confirmed by high-speed MAS, are separated by only 1 ppm. A difference of 4 ppm in the principal value component (delta(33)) between M-1 and M-3 is readily obtained. (C) 2000 Academic Press. |
收录类别 | SCI |
语种 | 英语 |
公开日期 | 2013-09-17 |
源URL | [http://ir.iphy.ac.cn/handle/311004/32943] ![]() |
专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
推荐引用方式 GB/T 7714 | Hu, JZ,Ye, CH,Pugmire, RJ,et al. A high-resolution C-13 3D CSA-CSA-CSA correlation experiment by means of magic angle turning[J]. JOURNAL OF MAGNETIC RESONANCE,2000,145(2):230. |
APA | Hu, JZ,Ye, CH,Pugmire, RJ,&Grant, DM.(2000).A high-resolution C-13 3D CSA-CSA-CSA correlation experiment by means of magic angle turning.JOURNAL OF MAGNETIC RESONANCE,145(2),230. |
MLA | Hu, JZ,et al."A high-resolution C-13 3D CSA-CSA-CSA correlation experiment by means of magic angle turning".JOURNAL OF MAGNETIC RESONANCE 145.2(2000):230. |
入库方式: OAI收割
来源:物理研究所
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