MRI: Acquisition of a 500 MHz Nuclear Magnetic Resonance Spectrometer for Research and Training at the University of Arizona

该奖项由主要研究仪器（MRI）和化学仪器（CRIF）项目资助。亚利桑那大学的Jon Njardarson教授和他的同事Wei Wang、Jeffrey Pyun、Douglas Loy和Elisa Tomat已经获得了一台500 MHz的核磁共振光谱仪。一般来说，核磁共振波谱是化学家用来阐明分子结构的基本工具之一。它用于识别未知物质，表征分子内原子的特定排列，以及研究溶液中分子之间相互作用的动力学。获得最先进的核磁共振光谱仪是化学家进行前沿研究的重要工具。化学家的一个典型用途是分析反应的混合物以确定产物。例如，改善电池电极材料以提高其效率的研究将涉及通过改变化学反应中的起始材料来跟踪产品。在实验课程中使用光谱仪来训练本科生使用这个强大的工具。相当大的群体来自代表性不足和服务不足的群体。该奖项旨在加强各级的研究和教育。各种各样的研究项目正在进行调查。其中一个项目探索用于制备天然产物的新合成方法。另一项研究探讨了线性低聚吡咯金属配合物中基于配体的氧化还原化学工程。利用废硫提供一类新型硫基聚合物的可持续聚合物化学研究正在进行中。金属聚合物制氢电催化剂是目前研究的热点。基于有机桥接聚硅氧烷构建纳米工程、杂化有机-无机材料的开创性研究正在进行中。该奖项反映了美国国家科学基金会的法定使命，并通过使用基金会的知识价值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 funded by the Major Research Instrumentation (MRI) and Chemical Instrumentation (CRIF) programs. Professor Jon Njardarson from University of Arizona and colleagues Wei Wang, Jeffrey Pyun, Douglas Loy and Elisa Tomat have acquired a 500 MHz NMR spectrometer. In general, NMR spectroscopy is one of the basic 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. Access to state-of-the-art NMR spectrometers is an essential tool for chemists who are carrying out frontier research. A typical use by a chemist is to analyze the mixture from a reaction to determine the products. For example investigations to improve materials used in battery electrodes to increase their efficiency will involve following the products by varying the starting materials in a chemical reaction. The spectrometer is used in laboratory courses to train undergraduate students in this powerful tool. A sizable cohort are from underrepresented and underserved groups. The award is aimed at enhancing research and education at all levels. A variety of research projects are being investigated. One project explores new synthetic methods used to prepare natural products. Another investigation probes the engineering of ligand-based redox chemistry in metal complexes of linear oligopyrroles. Sustainable polymer chemistry through utilization of waste sulfur to afford a new class of sulfur-based polymers is being studied. Metallopolymer electrocatalysts for hydrogen production are the focus of an investigation. Pioneering investigations to construct nano-engineered, hybrid organic-inorganic materials based on organically bridged polysilsesquioxanes is a current on-going study.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.