Oxygen-17 NMR central-line exchange spectroscopy of the slow dynamics in glass formers and crystalline solids

玻璃形成体和结晶固体中慢速动力学的氧 17 NMR 中心线交换光谱

• 批准号: 286881352
• 负责人: Professor Dr. Roland Böhmer
• 金额: --
• 依托单位: Lehrstuhl für Experimentelle Physik III
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2016
• 资助国家: 德国
• 起止时间: 2015-12-31 至 2021-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/286881352?language=en
• 关键词: Oxygen; 17; NMR; central; line

Magnetic resonance exchange spectroscopy is a well-established and indispensable tool to study the ultraslow molecular and ionic dynamics in condensed matter. So far, the corresponding studies mostly focused on nuclei with spin 1/2 or spin 1, such as deuterium, carbon, or phosphorous and a few others. However, the spectra of most NMR-active nuclei are broadened to an extent that enables one only in exceptional cases to exploit them in studies of ultraslow dynamics. The principal goal of this project is to further develop the central-line spectroscopy of strongly quadrupolarly perturbed nuclei that was recently outlined theoretically and demonstrated experimentally by our group and to contribute to its general establishment as a method of investigation. In this context mostly oxygen-17 will be used, a nuclear probe that has proven useful in the study of diverse ion conducting materials as well as of materials that are relevant in the geological and in the life sciences. This project is devoted to the exploration of complex motional processes in crystals and glass formers which so far are not or not fully resolvable using other techniques. In this context, a variety of experimental and theoretical research avenues are outlined to enhance efficiency and range of applicability of the central-line exchange spectroscopy.

磁共振交换光谱是研究凝聚态物质中超低分子和离子动力学的重要工具。到目前为止，相应的研究主要集中在自旋为1/2或1的原子核，如氢、碳或磷等。然而，大多数核磁共振活性核的光谱被加宽到只有在特殊情况下才能在超低动力学研究中利用它们的程度。这个项目的主要目标是进一步发展我们小组最近从理论上和实验上证明的强四极微扰核的中心线光谱，并为它作为一种研究方法的普遍建立做出贡献。在这种情况下，将主要使用氧-17，这是一种核探测器，已被证明在研究各种离子导电材料以及与地质和生命科学有关的材料方面是有用的。这个项目致力于探索晶体和玻璃成型器中复杂的运动过程，这些过程到目前为止还不能或不能用其他技术完全解决。在此背景下，概述了各种实验和理论研究途径，以提高中心线交换光谱的效率和适用范围。

项目成果

Reorientational dynamics of trimethoxyboroxine: A molecular glass former studied by dielectric spectroscopy and 11B nuclear magnetic resonance.

• DOI: 10.1063/1.5129769
• 发表时间: 2020-01
• 期刊: The Journal of chemical physics
• 作者: Lars Hoffmann;Joachim Beerwerth;Dominik Greim;J. Senker;C. Sternemann;W. Hiller;R. Böhmer

Heterogeneous Rotational and Translational Dynamics in Glasses and Other Disordered Materials Studied by NMR

通过 NMR 研究玻璃和其他无序材料中的非均相旋转和平移动力学

• DOI: 10.1007/978-3-319-28275-6_136-1
• 发表时间: 2017
• 作者: R. Böhmer;M. Storek;M. Vogel
• 通讯作者: M. Vogel

Communication: Heterogeneous water dynamics on a clathrate hydrate lattice detected by multidimensional oxygen nuclear magnetic resonance

通讯：多维氧核磁共振检测到笼形水合物晶格上的非均相水动力学

• DOI: 10.1063/1.4983043
• 发表时间: 2017
• 期刊: Journal of Chemical Physics
• 影响因子: 4.4
• 作者: M. Adjei-Acheamfour;M. Storek;R. Böhmer
• 通讯作者: R. Böhmer

Two-site jumps in dimethyl sulfone studied by one- and two-dimensional 17O NMR spectroscopy.

通过一维和二维 17O NMR 光谱研究二甲砜中的双位点跃迁

• DOI: 10.1016/j.jmr.2018.01.016
• 发表时间: 2018
• 期刊: Journal of magnetic resonance
• 影响因子: 2.2
• 作者: J. Beerwerth;M. Storek;D. Greim;J. Lueg;R. Siegel;B. Cetinkaya;W. Hiller;H. Zimmermann;J. Senker;R. Böhmer
• 通讯作者: R. Böhmer

From Ultraslow to Extremely Fast Dynamics in Sodium Nitrate: an 17O NMR Study

硝酸钠从超慢到极快的动力学：17O NMR 研究

• DOI: 10.1007/s00723-020-01201-5
• 发表时间: 2020
• 期刊: Applied Magnetic Resonance
• 影响因子: 1
• 作者: J. Beerwerth;R. Siegel;L. Hoffmann;L. S. Plaga;M. Storek;B. Bojer;J. Senker;W. Hiller;R. Böhmer
• 通讯作者: R. Böhmer