MRI: Acquisition of a 500 MHz Nuclear Magnetic Resonance (NMR) Spectrometer and Equipped with Solid-State Probes

该奖项由主要研究仪器项目和化学研究仪器项目支持。约翰霍普金斯大学正在购买一台500 MHz的核磁共振(核磁共振)光谱仪，配备了固态能力和其他探测器，以支持Rebekka Klausen教授和来自乔治华盛顿大学的同事Howard Fairbrother、Sara Thoi和Adelina Voutchkova-Kostal。这种光谱仪允许在各种领域进行研究，例如那些加速具有重大经济意义的化学反应的领域，以及允许研究具有生物相关性的物种。总体而言，核磁共振波谱是化学家用于阐明分子结构的最强大的工具之一。它被用来识别未知物质，表征分子中原子的特定排列，并研究分子在溶液或固体中相互作用的动力学。对于正在进行前沿研究的化学家来说，获得最先进的核磁共振光谱仪是必不可少的。该仪器是该机构以及附近的大学，如乔治敦大学和美国海军学院，对本科生和研究生进行化学和生物化学教学以及研究和研究培训的重要组成部分。该仪器还用于大学核磁共振暑期学校，并与博物馆合作研究文化遗产材料。核磁共振光谱仪的获奖旨在加强各级的研究和教育。它尤其影响基于主族元素的聚合物材料的光谱研究。该仪器还用于研究超分子材料以及分析共轭聚合物共混物和表面固定聚合物。此外，它还为探索可生物降解的聚合物功能化纳米纤维素复合材料和文化遗产材料的研究提供了信息。该光谱仪还用于识别与农业和食品安全相关的磷(III)-氧阴离子。这一奖项反映了NSF的法定使命，并通过使用基金会的智力优势和更广泛的影响审查标准进行评估，被认为值得支持。

This award is supported by the Major Research Instrumentation and the Chemistry Research Instrumentation programs. Johns Hopkins University is acquiring a 500 MHz nuclear magnetic resonance (NMR) spectrometer equipped with solid state capabilities and other probes to support Professor Rebekka Klausen and colleagues Howard Fairbrother, Sara Thoi and Adelina Voutchkova-Kostal from George Washington University. This spectrometer allows research in a variety of fields such as those that accelerate chemical reactions of significant economic importance, as well as permitting study of biologically relevant species. In general, NMR spectroscopy is one of the most powerful tools available to chemists for the elucidation of the structure of molecules. It is used to identify unknown substances, to characterize specific arrangements of atoms within molecules, and to study the dynamics of interactions between molecules in solution or in the solid state. Access to state-of-the-art NMR spectrometers is essential to chemists who are carrying out frontier research. This instrument is an integral part of teaching as well as research and research training of undergraduate and graduate students in chemistry and biochemistry at this institution and nearby universities such as Georgetown University and the US Naval Academy. The instrument is also used on university NMR Summer School and in collaboration with museums to study cultural heritage materials.The award of the NMR spectrometer is aimed at enhancing research and education at all levels. It especially impacts spectroscopic studies of polymeric materials based on main group elements. The instrumentation is also used for studying supramolecular materials as well as analyzing conjugated polymer blends and surface-immobilized polymers. In addition, it provides information for exploring biodegradable polymer-functionalized nanocellulose composites and for the study of cultural-heritage materials. The spectrometer is also used to identify phosphorus(III)-oxyanions relevant to agriculture and food safety.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.