Purchase of a 400 MHz NMR Spectrometer

根据化学研究仪器和设施（CRIF）计划的这份合同，马萨诸塞大学阿默斯特分校化学系将获得一台400 MHz核磁共振光谱仪，并翻新一台200 MHz光谱仪。新的光谱仪将成为该大学高场核磁共振设施的一部分，该设施向五所学院联盟（马萨诸塞大学、史密斯学院、霍利奥克山学院、阿默斯特学院和汉普郡学院）以及周边行业开放。该设备将使研究人员能够对聚烯烃的弹性和分支进行研究；枝状和超支化大分子的分支；铜基交叉偶联反应催化剂的机理研究共轭聚合物的结构；展开/识别过程的热力学；以及两亲性聚合物的结构动力学。这些仪器也将在培训本科生和当地高中生方面发挥重要作用。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。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必不可少的化学家谁正在进行前沿研究。这些核磁共振研究的结果将对新型聚合物的开发产生影响。

With this award from the Chemistry Research Instrumentation and Facilities (CRIF) Program, the Department of Chemistry at the University of Massachusetts Amherst will acquire a 400 MHz NMR spectrometer and refurbish a 200 MHz spectrometer. The new spectrometer will be a part of the High-Field NMR Facility at the university - a facility open to research of the Five Colleges Consortium (UMass, Smith, Mt. Holyoke, Amherst and Hampshire Colleges) and surrounding industries. This equipment will enable researchers to carry out research on the tacticity of, and branching in polyolefins; branching in dendritic and hyperbranched macromolecules; mechanistic investigations of copper-based catalysts for cross-coupling reactions; structures of conjugated polymers; thermodynamics of the unfolding/recognition process; and structural dynamics of amphiphilic polymers. These instruments will also play a vital role in training undergraduates and local area high school students. Nuclear Magnetic Resonance (NMR) spectroscopy is the most powerful tool 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 essential to chemists who are carrying out frontier research. The results from these NMR studies will have an impact in the development of novel polymers.