Promoting the Transition from Quantum Concepts to Spectroscopic Applications throughout the Undergraduate Curriculum

在整个本科课程中促进从量子概念到光谱应用的转变

• 批准号: 9951392
• 负责人: Jodi Wesemann
• 金额: $ 3.56万
• 依托单位: Saint Mary's College of California
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-07-01 至 2001-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9951392&HistoricalAwards=false
• 关键词: Promoting; Transition; Quantum; Concepts; Spectroscopic

The prevalence of spectroscopic techniques in scientific and technological fields requires that science students obtain both practical experience with spectroscopic instruments and a solid understanding of spectroscopic theory. Many departments introduce UV/Vis, IR and even NMR spectroscopies in introductory chemistry courses, using fast, user-friendly instruments to expose students to spectroscopic techniques and the information that they provide. Unless this use is accompanied, however, by sufficient background and time to explore the link between quantum mechanics, electronic transitions and spectroscopy, students will not obtain a thorough understanding of the underlying principles of quantization and energy transfer. Through curriculum revisions a UV/Vis photodiode-array spectrometer and a spectrofluorimeter are used in general chemistry and throughout the chemistry and biology curricula to impart these gains. This work adapts approaches used at other institutions (Lebanon Valley College - DUE 9354642 and DUE 9551199, and Bucknell University - College Science Instrumentation Program) into a series of experiments that help students make these correlations. In this series, introductory students are not only exposed to modern instrumentation, but use it to explore absorption and emission phenomena, to quantify unknowns, and to study reaction kinetics. The improved comprehension and enhanced skills that result are reinforced and expanded as IR, NMR, phosphorescence, and bioluminescence are covered in subsequent upper-division courses. This increased focus on quantum theory and spectroscopic techniques helps chemistry, biology and health science graduates from Saint Mary's College of California gain a deeper understanding of the fundamental principles behind the imaging and spectroscopic techniques used in their fields and be better qualified to enter the job market, professional schools, or graduate programs.

光谱学技术在科技领域的广泛应用，要求理科生既要有使用光谱学仪器的实践经验，又要对光谱学理论有扎实的了解。许多系在化学入门课程中引入紫外/可见，红外甚至核磁共振光谱，使用快速，用户友好的仪器向学生展示光谱技术及其提供的信息。然而，除非有足够的背景知识和时间来探索量子力学、电子跃迁和光谱学之间的联系，否则学生将无法彻底理解量子化和能量传递的基本原理。通过课程修订，紫外/可见光电二极管阵列光谱仪和荧光光谱仪在普通化学和整个化学和生物课程中使用，以传授这些成果。这项工作采用了其他机构（黎巴嫩谷学院- DUE 9354642和DUE 9551199，以及巴克内尔大学-学院科学仪器计划）使用的方法，进行了一系列实验，帮助学生建立这些相关性。在这个系列中，入门学生不仅接触到现代仪器，而且使用它来探索吸收和发射现象，量化未知，并研究反应动力学。随着IR， NMR，磷光和生物发光的加强和扩展，改进的理解和增强的技能将在随后的高年级课程中得到加强和扩展。这种对量子理论和光谱技术的日益关注，有助于加州圣玛丽学院化学、生物和健康科学专业的毕业生更深入地了解各自领域中使用的成像和光谱技术背后的基本原理，从而更有资格进入就业市场、专业学校或研究生项目。