Enhancement of High Field NMR Facilities for Organic and Inorganic Structure Determination

核磁共振波谱是化学家用来阐明分子结构的最有力的工具。它被用来识别未知物质，表征分子内原子的特定排列，并研究溶液中分子之间相互作用的动力学。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是必不可少的。化学共享仪器计划的这一奖项将帮助密歇根州立大学化学系获得一台高场核磁共振光谱仪，并升级现有的核磁共振光谱仪。此次收购将加强的化学研究领域包括：1)各种天然四聚吡咯大分子的结构和功能2)具有多个转动势垒的多环芳香族化合物3)新的环加成反应和转动受限化合物的光化学4)具有非传统配体的低价金属簇合物的化学5)双核(Ir，6)路易斯酸催化的有机重排和环化反应。

Nuclear Magnetic Resonance (NMR) spectroscopy is the most powerful tool available to the chemist for the elucidation of the structure of molecules. It is used to identify unknown substances, 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 spectrometry is essential to chemists who are carrying out frontier research. This award from the Chemistry Shared Instrumentation Program will help the Department of Chemistry of Michigan State University to acquire a high-field NMR spectrometer and to upgrade an existing NMR spectrometer. The areas of chemical research that will be enhanced by the acquisition include: 1) Structure and function of various natural tetrapyrrolic macromolecules 2) Polycyclic aromatic compounds with multi-rotational barriers 3) New cycloaddition photochemistry and photochemistry of rotationally constrained compounds 4) Chemistry of low-valent metal clusters with unconventional ligands 5) Photochemistry of binuclear (Ir, Rh) complexes with fluorophosphine ligands 6) Lewis acid catalyzed organic rearrangements and cyclyzations.