Double-quantum homonuclear NMR correlation spectroscopy of quadrupolar nuclei subjected to magic-angle spinning and high magnetic field
文献类型：期刊论文
| 作者 | Wang, Q.1,2,3; Hu, B.1; Lafon, O.1; Trebosc, J.1; Deng, F.2; Amoureux, J. P.1 |
| 刊名 | JOURNAL OF MAGNETIC RESONANCE
 |
| 出版日期 | 2009-10-01 |
| 卷号 | 200期号:2页码:251-260 |
| 关键词 | Solid-state NMR Half-integer quadrupolar nuclei Fast MAS Double-quanta spectroscopy |
| 通讯作者 | Amoureux, JP (reprint author), Univ Lille, CNRS 8181, UCCS, FR-59652 Villeneuve Dascq, France. |
| 英文摘要 | We present a new application of the R2(2)(1) symmetry-based dipolar recoupling scheme, for exciting directly double-quantum (2Q) coherences between the central transition of homonuclear half-integer quadrupolar nuclei. With respect to previously published 2Q-recoupling methods (M. Eden, D. Zhou, J. Yu, Chem. Phys. Lett. 431 (2006) 397), the R2(2)(1) sequence is used without pi/2 bracketing pulses and with an original super-cycling. This leads to an improved efficiency (a factor of two for spin-5/2) and to a much higher robustness to radio-frequency field inhomogeneity and resonance offset. The 2Q-coherence excitation performances are demonstrated experimentally by Al-27 NMR experiments on the aluminophosphates berlinite, VPI5, AlPO4-14, and AlPO4-CJ3. The two-dimensional 2Q-1Q correlation experiments incorporating these recoupling sequences allow the observation of 2Q cross-peaks between central transitions, even at high magnetic field where the difference in offset between octahedral and tetrahedral Al-27 sites exceeds 10 kHz. (C) 2009 Elsevier Inc. All rights reserved. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine ; Physical Sciences ; Technology |
| 类目[WOS] | Biochemical Research Methods ; Physics, Atomic, Molecular & Chemical ; Spectroscopy |
| 研究领域[WOS] | Biochemistry & Molecular Biology ; Physics ; Spectroscopy |
| 关键词[WOS] | SOLID-STATE NMR ; MAS NMR ; RESONANCE-SPECTROSCOPY ; ROTATING SOLIDS ; ROTARY RESONANCE ; SENSITIVITY ENHANCEMENT ; DIPOLAR INTERACTIONS ; PULSE SEQUENCES ; MQMAS NMR ; SPINS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000272260900011 |
| 源URL | [http://ir.wipm.ac.cn/handle/112942/2166]  |
| 专题 | 武汉物理与数学研究所_2011年以前论文发表（包括2011年） |
| 作者单位 | 1.Univ Lille, CNRS 8181, UCCS, FR-59652 Villeneuve Dascq, France 2.Chinese Acad Sci, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan Ctr Magnet Resonance, Wuhan Inst Phys & Math, Wuhan 430071, Peoples R China 3.Chinese Acad Sci, Grad Sch, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Q.,Hu, B.,Lafon, O.,et al. Double-quantum homonuclear NMR correlation spectroscopy of quadrupolar nuclei subjected to magic-angle spinning and high magnetic field[J]. JOURNAL OF MAGNETIC RESONANCE,2009,200(2):251-260. |
| APA | Wang, Q.,Hu, B.,Lafon, O.,Trebosc, J.,Deng, F.,&Amoureux, J. P..(2009).Double-quantum homonuclear NMR correlation spectroscopy of quadrupolar nuclei subjected to magic-angle spinning and high magnetic field.JOURNAL OF MAGNETIC RESONANCE,200(2),251-260. |
| MLA | Wang, Q.,et al."Double-quantum homonuclear NMR correlation spectroscopy of quadrupolar nuclei subjected to magic-angle spinning and high magnetic field".JOURNAL OF MAGNETIC RESONANCE 200.2(2009):251-260. |
入库方式： OAI收割
来源：武汉物理与数学研究所
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