Novel 2-H NMR Methods for Studying Quadrupolar and Shielding Interactions in Dia- and Paramagnetic Solids

研究双磁和顺磁固体中四极和屏蔽相互作用的新 2-H NMR 方法

• 批准号: GR/S96579/02
• 负责人: Stephen Wimperis
• 金额: --
• 依托单位: University of Glasgow
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2006
• 资助国家: 英国
• 起止时间: 2006 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=GR%2FS96579%2F02
• 关键词: Novel; NMR; Methods; Studying; Quadrupolar

Deuterium (2-H) NMR spectroscopy is an established and widely used method of obtaining chemical information about a specific hydrogen site in a solid material. Recently, we have begun to develop a new two-dimensional 2-H NMR technique for separating and measuring the quadrupolar and shielding interactions of the spin 1=1 2-H nucleus. This method holds the promise of being able to measure the very small 2-H chemical shift anisotropy (CSA) found in diamagnetic systems and of being able to determine the relative orientation of the quadrupole and shielding anisotropy tensors in paramagnetic systems. The research project involves making improvements to the basic technique, developing methods of analysing the spectra (especially in, e.g., paramagnetic systems where molecular motion is occurring), and applying the improved technique to the study of hydrogen bonding in diamagnetic solids and to the problem of NMR structure determination around paramagnetic centres.

氘(2-H)核磁共振波谱是一种成熟和广泛使用的方法，用于获取关于固体材料中特定氢位的化学信息。最近，我们开始发展一种新的二维2-H核磁共振技术，用于分离和测量自旋1=1 2-H核的四极相互作用和屏蔽相互作用。这种方法有望测量在抗磁系统中发现的非常小的2-H化学位移各向异性(CSA)，并能够确定顺磁系统中四极张量和屏蔽各向异性张量的相对取向。研究项目包括改进基本技术，开发分析光谱的方法(特别是在分子发生运动的顺磁系统中)，并将改进后的技术应用于研究抗磁固体中的氢键和顺磁中心周围的核磁共振结构确定问题。

项目成果

2H double-quantum MAS NMR spectroscopy as a probe of dynamics on the microsecond timescale in solids

• DOI: 10.1016/j.cplett.2006.03.065
• 发表时间: 2006-06-01
• 期刊: CHEMICAL PHYSICS LETTERS
• 影响因子: 2.8
• 作者: Cutajar, Marica;Ashbrook, Sharon E.;Wimperis, Stephen
• 通讯作者: Wimperis, Stephen

Transformation of AlPO-53 to JDF-2: Reversible Dehydration of a Templated Aluminophosphate Studied by MAS NMR and Diffraction

AlPO-53 向 JDF-2 的转化：通过 MAS NMR 和衍射研究模板化铝磷酸盐的可逆脱水

• DOI: 10.1021/jp902074s
• 发表时间: 2009
• 期刊: The Journal of Physical Chemistry C
• 作者: Ashbrook S