MRI: Acquisition of a 400 MHz Solid State NMR Spectrometer

从这项提议中获得的资金将用于购买一台400兆赫核磁共振光谱仪，该光谱仪配备了进行最先进的固体核磁共振材料表征实验所需的附件。附件将包括一个双共振魔角旋转(MAS)探测器，这对许多固态核磁共振光谱应用是必不可少的，以及一个用于1H核固态核磁共振光谱的单共振抽筋(组合旋转和多脉冲序列)探测器。这一要求的仪器将提供极大改进的固态核磁共振波谱能力，用于研究广泛的样品，从而推动西北大学(NU)多个系正在进行的跨学科材料研究。将立即受益于深入的凝聚态核磁共振表征能力的研究项目包括用于有机合成的新型过渡金属试剂、用于光通信、数据存储和有机晶体管的新型光电活性固体、用于高效能量存储和催化的金属-有机骨架、具有特殊结构的硅基笼形结构和纳米胶囊、用于固态电子和高强度材料的石墨烯纳米小片和碳纳米棒、新型结构和阻隔聚合物，以及来自植物分泌物的树脂和树胶等固态天然材料。这台新仪器在环境温度和可变温度下提供了更灵敏的一维和二维固态核磁共振波谱，这将大大有助于对这些材料进行更明确的结构表征，从而更详细地了解它们的功能。能够在内部以高通量和快速反馈进行这些研究，不仅将使NU材料研究更快地向前推进，还将为研究生提供更完整的教育体验，他们将以动手方式学习现代固态核磁共振波谱技术，同时将其应用于自己的研究。此外，NU化学、化学工程和材料科学与工程专业的高级本科生课程将介绍使用这种仪器的实验。随着研究生和本科生转向其他岗位，这些教育好处将远远超出诺丁汉大学。现代核磁共振(核磁共振)光谱学是一种了解固体材料结构和功能的极其强大的技术。这项提案的资金将用于购买一台最先进的光谱仪，供西北大学广泛的材料研究科学家和他们的学生使用。许多部门正在进行的跨学科研究将受益于拟议文书所提供的结构表征能力，而我们目前还不具备这些能力。来自该仪器的数据将使人们更好地了解目前正在研究的一系列固态材料，这些材料对开发更具选择性、高效和环境友好的催化工艺、用于储能的新材料、用于高速通信的光电材料、数据存储和印刷晶体管以及更坚固、更轻的结构材料非常重要。这一要求的仪器也将在我们的研究生和本科生的教育计划中发挥重要作用。

Funds obtained from this proposal will be used to acquire a 400 MHz NMR spectrometer equipped with the necessary accessories for conducting state-of-the-art solid state NMR materials characterization experiments. The accessories will include a double-resonance, magic angle spinning (MAS) probe, which is essential for many solid state NMR spectroscopic applications, as well as a single-resonance CRAMPS (Combined Rotation and Multiple Pulse Sequence) probe for solid state NMR spectroscopy of the 1H nucleus. This requested instrumentation will provide greatly improved solid state NMR spectroscopic capabilities for studying a wide range samples, hence advancing the interdisciplinary materials research being conducted in a broad range of departments at Northwestern University (NU). Research programs which would immediately benefit from incisive condensed matter NMR characterization capabilities include those studying novel transition metal reagents for organic synthesis, novel opto-electronically active solids for optical communications, data storage, and organic transistors, metal-organic frameworks for efficient energy storage and catalysis, silicon-based cage structures and nanocapsules having unusual architectures, graphene nanoplatelets and carbon nanorods for solid state electronics and high-strength materials, novel structural and barrier polymers, and solid state natural materials such as resins and gums from plant exudates. The more sensitive one- and two-dimensional solid state NMR spectroscopy at ambient and variable temperatures offered by this new instrument will significantly enable far more definitive structural characterization of these materials, leading to a more detailed understanding of their functionality. The ability to conduct these studies in-house with high throughput and rapid feedback will not only allow NU materials research to move forward more expeditiously, but will also provide a more complete educational experience for graduate students who will learn modern solid state NMR spectroscopic techniques in a hands-on manner while applying it to their own research. Additionally, advanced undergraduate courses in the Chemistry, Chemical Engineering, and Materials Science and Engineering programs at NU will introduce experiments with this instrumentation. These educational benefits will spread far beyond NU as graduate and undergraduate students move on to other positions.Modern Nuclear Magnetic Resonance (NMR) spectroscopy is an extremely powerful technique for understanding the structure and function of solid materials. Funds from this proposal will be used to acquire a state-of-the-art spectrometer for use by a broad community of materials research scientists and their students at Northwestern University. Interdisciplinary research being conducted in many departments will benefit from the structural characterization capabilities offered by the proposed instrument and not currently available to us. The data from this instrument will lead to a better understanding of a wide range of solid state materials currently under study and which are important to the development of more selective, efficient, and environmentally friendly catalytic processes, new materials for energy storage, opto-electronic materials for high-speed communications, data storage, and printed transistors, and stronger, lighter weight structural materials. This requested instrument will also play a major role in educational programs for our graduate and undergraduate students.