Introducing NMR into the Techniques and Projects Program in Organic Chemistry Laboratory: A Research - Based Project Experience

作为正在进行的课程改革的一部分，阿尔比恩学院化学系正在将现有的核磁共振光谱仪升级为多核傅里叶变换（FT）核磁共振光谱仪。这次升级（Anasazi, Inc.）是为了响应该部门在有机化学实验室采用的技术和项目组件计划的新方法。这种方法植根于日益发展的以研究为基础的实验室，例如由Amenta和Mosbo， light和Thurlow （NSF-DUE 9456035）以及Kharas （NSF-DUE 9455681）开发的实验室。对这种理想的积极追求需要使用现代分析仪器。我们正在以这些创新项目为基础，使其适应我们自己的机构和部门对化学教育未来的愿景。这一愿景包括让学生尽快、尽可能多地参与到真实的研究体验中。使用现代FT-NMR光谱学可以让我们的学生体验到更现实的研究环境。技术和项目组成部分课程将学生置于基于项目的研究经验的中心，并为学生提供必要的工具和技能来调查研究问题。学生体验多种研究环境，包括：图书馆和在线文献和结构搜索，在有机实验室进行新颖的实验，在仪器实验室仔细分析实验样品。实验室体验分为两个部分；技术（化学211L和化学212L的前5周）和项目（化学212L的最后9周）。每个组成部分都为学生提供了充分的机会，使他们与研究经验建立积极的联系。技术部分侧重于获得适当的实验室技能。在这个组件中内置了许多基于研究的实验室。项目部分是一个为期九周的经历，学生们在其中进行自己的研究项目。这包括搜索有关项目信息的文献，寻找或设计适当的实验，并分析这些实验的结果。一些项目已被建议供学生调查，并鼓励学生创建自己的，受到导师的批准。反应产物的光谱分析是这两个组成部分的必要组成部分。在我们这个新实验室项目的第一年之后，对核磁共振分析的需求变得明显。升级后的仪器对本次课程修订的成功至关重要，因为它允许学生自己获得更完整的光谱数据集，用于产品和中间体分析。这反过来又为学生提供了在现代研究环境中操作能力的关键经验。

As part of its ongoing curriculum reform, the Chemistry Department at Albion College is upgrading an existing NMR spectrometer to a multinuclear Fourier Transform (FT) NMR spectrometer. This upgrade (Anasazi, Inc.) is in response to the new approach the department has taken in the organic chemistry laboratory with the Techniques and Projects Component Program. This approach is rooted in the growing movement towards research-based laboratories, such as those developed by Amenta and Mosbo, Licht and Thurlow (NSF-DUE 9456035), and Kharas (NSF-DUE 9455681). An aggressive pursuit of such ideals requires the use of modern analytical instrumentation. We are building on these innovative programs as we adapt them to our own institutional and departmental vision for the future of chemical education. This vision includes involving students in authentic research experiences as soon and as often as possible. Access to modern FT-NMR spectroscopy allows our students to experience a more realistic research environment.The Techniques and Projects Component Program places the student in the center of a project-based research experience and provides the student with the necessary tools and skills to investigate a research problem. The student experiences multiple research environments including: library and on-line literature and structure searches, performing novel experiments in the organic laboratory, and careful analysis of experimental samples in the instrument laboratory. The laboratory experience is divided into two components; Techniques (Chem 211L and the first 5 weeks of Chem 212L) and Projects (the last 9 weeks of Chem 212L). Each component provides ample opportunity for students to make positive connections with the research experience. The Techniques component focuses on the acquisition of proper laboratory skills. Built into this component are a number of research-based laboratories. The Projects component is a nine-week experience in which the students carry out their own research projects. This includes searching the literature for information about the project, finding or designing appropriate experiments, and analyzing the outcomes of these experiments. A number of projects have been suggested for students to investigate, and the student are encouraged to create their own, subject to instructor approval. Spectroscopic analysis of reaction products is a necessary part of both components. Following our first year of this new laboratory program, the need for NMR analysis has become evident. The upgraded instrument is critical to the success of this curriculum revision in that it allows students to obtain for themselves a more complete spectroscopic data set for use in product and intermediate analysis. This, in turn, provides students with experiences critical to their ability to operate in a modern research environment.