MRI: Acquisition of 400 MHz NMR Spectrometer for Chemistry Research

该奖项由主要研究仪器和化学研究仪器项目以及促进竞争性研究的既定项目共同支持。格林内尔学院正在购买一台带有扩散探针的400兆赫核磁共振（NMR）光谱仪的升级控制台，以支持Andrew Mobley教授及其同事Erick Leggans， Leslie Lyons， Molly MacInnes和Stephen Sieck的研究。该仪器促进了有机化学、有机金属化学、天然产物和材料科学领域的研究。总的来说，核磁共振（NMR）波谱是化学家用来阐明分子结构的最有力的工具之一。它用于识别未知物质，表征分子内原子的特定排列，以及研究溶液或固体状态下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必不可少的化学家谁正在进行前沿研究。该仪器提高了格林内尔学院许多部门各级学生的教育、研究和教学努力，并为附近的机构提供了可访问性。该工具还使各研究小组能够积极开展工作，招收来自不同背景的学生，并扩大少数群体在科学领域的代表性。核磁共振波谱仪奖旨在加强各级的研究和教育，特别是在有机化学、有机金属化学、天然产物和材料科学等领域。该仪器对研究的影响主要集中在推进对电解质和石墨网络中杂双金属配合物和离子传输的理解。具体来说，该仪器将用于一系列广泛的项目，例如：1) W和Pt的锡氢化配合物的异核NOE和核磁共振弛豫研究，2)天然产物lugdunin构象行为的详细变温结构研究，3)锂离子和钠电池电解质中溶剂与金属离子相互作用的结构测定，4)Li、Na和Ln离子在石墨悬浮液中的自扩散研究，5) j偶联研究，确定新型查尔酮的构型和溶液态构象。由400MHz核磁共振光谱仪启动的研究项目可能会对能源储存和生物技术等领域产生影响。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 jointly supported by the Major Research Instrumentation and the Chemistry Research Instrumentation Programs, and the Established Program to Stimulate Competitive Research. Grinnell College is acquiring an upgraded console for a 400 MHz nuclear magnetic resonance (NMR) spectrometer with a diffusion probe to support the research of Professor Andrew Mobley and colleagues Erick Leggans, Leslie Lyons, Molly MacInnes, and Stephen Sieck. This instrument facilitates research in the areas of organic chemistry, organometallic chemistry, natural products, and material science. In general, Nuclear Magnetic Resonance (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 enhances the educational, research, and teaching efforts of students at all levels in many departments at Grinnell College as well as provides accessibility for use at nearby institutions. The instrument also enables the research groups to work actively to recruit students from a diverse background and broaden the representation of minoritized groups in the sciences.The award of the NMR spectrometer is aimed at enhancing the research and education at all levels, especially in areas such as organic chemistry, organometallic chemistry, natural products, and material science. The instrument impacts research focused on advancing the understanding of heterobimetallic complexes and ion transport in electrolytes and graphitic networks. Specifically, the instrument will be used in a wide spectrum of projects such as: 1) heteronuclear NOE and NMR-relaxation studies of Sn hydride complexes of W and Pt, 2) detailed variable temperature structural studies of the conformational behavior of the natural product lugdunin, 3) structural determination of the interaction between solvent and metal ions in electrolytes for Li-ion and Na batteries, 4) self-diffusion studies of Li, Na, and Ln ions in graphitic suspensions, and 5) J-coupling studies to determine the configuration and solution state conformation of novel chalcones. The research projects to be enabled by the 400MHz NMR spectrometer could lead to impacts in the fields such as energy storage and biotechnology.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.