NMR Spectroscopy in the Undergraduate Curriculum

化学系正在购买一台宽口径300兆赫核磁共振光谱仪，用于实验室课程和本科生研究。有机化学实验室将使用该仪器识别反应序列中的化合物，证明反应产物的结构，并进行定性分析。学生将在本课程中掌握质子和l3C光谱。在第二学期，学生将学习使用二维光谱来确认合成产物和定性分析。有机化学实验室将受益于自动化采集和分析软件，它允许快速周转样品。先进的实验室将建立在该课程发展的基础上。物理化学、生物化学和高级化学制剂实验室将使用该光谱仪进行化学屏蔽趋势、热力学、动力学、弛豫、酶催化氢向NAD(P)+转移的立体选择性、线粒体中的能量转导以及结构和分子模型等方面的新实验。光谱识别课程将教授更高级的技术，如DEPT， HETEROCOSY, hetor， 2d - d不充分和NOESY。学生将学习解决现实世界的未知问题，这些问题非常复杂，以至于无法使用任何一种技术完成作业。最后，化学专业的本科研究部分将得到显著加强。新光谱仪将用于学生进行有机和无机合成研究；在变化的环境条件下研究土壤有机质的构象行为及其与矿物胶体和污染物的相互作用；在气相和液相动态核磁共振研究中，旨在分离构象交换反应的内在和环境影响，评估理论计算，并产生力场扭转参数；以及同时测定高能磷酸盐代谢和心功能变化的3Ip核磁共振研究。

The Chemistry Department is purchasing a wide-bore 300-MHz NMR spectrometer for use in laboratory courses and undergraduate research. Organic chemistry laboratories will use the instrument to identify compounds in reaction sequences, prove the structure of reaction products, and perform qualitative analysis. Proton and l3C spectra will be acquired by students in this course. In the second semester students will learn to use 2-D spectra for confirmation of synthesis products and for qualitative analysis. Organic Chemistry Laboratory will benefit from the automated acquisition and analysis software, which allows quick turnover of samples. Advanced laboratories will build on the basis developed in that course. Physical Chemistry, Biochemistry, and Advanced Chemical Preparations Laboratories will use the spectrometer for new experiments in chemical-shielding trends, thermodynamics, kinetics, relaxation, stereoselectivity of enzyme- catalyzed hydrogen transfer to NAD(P)+, energy transduction in mitochondria, and structure and molecular modeling. The Spectrometric Identification course will teach more advanced techniques such as DEPT, HETEROCOSY, HETCOR, 2-D INADEQUATE, and NOESY. Students will learn to solve real-world unknowns that are sufficiently complex to thwart complete assignment using any one technique. Finally, the undergraduate research component of the Chemistry Major will be significantly enhanced. The new spectrometer will be used by students doing organic and inorganic synthesis tesearch; in studies of the conformational behavior of soil organic matter and its interaction with mineral colloids and pollutants under changing environmental conditions; in gas- and liquid-phase dynamic NMR studies aimed at separating intrinsic and environmental effects on conformational exchange reactions, evaluating theoretical calculations, and generating force-field torsional parameters; and in 3Ip NMR studies that simultaneously determine changes in high-energy phosphate metabolism and cardiac function .