Population transfer HMQC for half-integer quadrupolar nuclei
文献类型：期刊论文
| 作者 | Wang, Qiang1; Li, Yixuan1,2,3,4; Trebosc, Julien2; Lafon, Olivier2; Xu, Jun1; Hu, Bingwen3,4; Feng, Ningdong1; Chen, Qun3,4; Amoureux, Jean-Paul2,3,4; Deng, Feng1 |
| 刊名 | JOURNAL OF CHEMICAL PHYSICS
 |
| 出版日期 | 2015-03-07 |
| 卷号 | 142期号:9 |
| 英文摘要 | This work presents a detailed analysis of a recently proposed nuclear magnetic resonance method [Wang et al., Chem. Commun. 49(59), 6653-6655 (2013)] for accelerating heteronuclear coherence transfers involving half-integer spin quadrupolar nuclei by manipulating their satellite transitions. This method, called Population Transfer Heteronuclear Multiple Quantum Correlation (PT-HMQC), is investigated in details by combining theoretical analyses, numerical simulations, and experimental investigations. We find that compared to instant inversion or instant saturation, continuous saturation is the most practical strategy to accelerate coherence transfers on half-integer quadrupolar nuclei. We further demonstrate that this strategy is efficient to enhance the sensitivity of J-mediated heteronuclear correlation experiments between two half-integer quadrupolar isotopes (e.g., Al-27-O-17). In this case, the build-up is strongly affected by relaxation for small T-2' and J coupling values, and shortening the mixing time makes a huge signal enhancement. Moreover, this concept of population transfer can also be applied to dipolar-mediated HMQC experiments. Indeed, on the AlPO4-14 sample, one still observes experimentally a 2-fold shortening of the optimum mixing time albeit with no significant signal gain in the P-31-{Al-27} experiments. (C) 2015 AIP Publishing LLC. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Physics, Atomic, Molecular & Chemical |
| 研究领域[WOS] | Physics |
| 关键词[WOS] | SOLID-STATE NMR ; HETERONUCLEAR DIPOLAR INTERACTIONS ; MAGNETIC-RESONANCE-SPECTROSCOPY ; INEPT EXPERIMENTS ; SENSITIVITY ENHANCEMENT ; AMPLITUDE-MODULATION ; SPIN SYSTEMS ; THROUGH-BOND ; HIGH-FIELD ; MAS NMR |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000350973900025 |
| 公开日期 | 2015-07-14 |
| 源URL | [http://ir.wipm.ac.cn/handle/112942/1053]  |
| 专题 | 武汉物理与数学研究所_磁共振应用研究部 |
| 作者单位 | 1.Chinese Acad Sci, Wuhan Inst Phys & Math, Natl Ctr Magnet Resonance Wuhan, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Peoples R China 2.Univ Lille, CNRS UMR 8181, UCCS, F-59652 Villeneuve Dascq, France 3.E China Normal Univ, Dept Phys, Shanghai 200062, Peoples R China 4.E China Normal Univ, Shanghai Key Lab Magnet Resonance, Shanghai 200062, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Qiang,Li, Yixuan,Trebosc, Julien,et al. Population transfer HMQC for half-integer quadrupolar nuclei[J]. JOURNAL OF CHEMICAL PHYSICS,2015,142(9). |
| APA | Wang, Qiang.,Li, Yixuan.,Trebosc, Julien.,Lafon, Olivier.,Xu, Jun.,...&Deng, Feng.(2015).Population transfer HMQC for half-integer quadrupolar nuclei.JOURNAL OF CHEMICAL PHYSICS,142(9). |
| MLA | Wang, Qiang,et al."Population transfer HMQC for half-integer quadrupolar nuclei".JOURNAL OF CHEMICAL PHYSICS 142.9(2015). |
入库方式： OAI收割
来源：武汉物理与数学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。