RUI: High Resolution Coherent 3D Spectroscopy

RUI：高分辨率相干 3D 光谱

• 批准号: 1608010
• 负责人: Peter Chen
• 金额: $ 31.95万
• 依托单位: Spelman College
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-09-01 至 2023-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1608010&HistoricalAwards=false
• 关键词: RUI; Resolution; Coherent; 3D; Spectroscopy

With support from the Chemical Measurement and Imaging Program in the Division of Chemistry, Professor Chen at Spelman College is working with undergraduate students to develop and investigate a new laser spectroscopic technique that was invented at Spelman. This new three-dimensional spectroscopy method can overcome problems and limitations of other existing forms of spectroscopy in the study of the properties and behavior of molecules in chemistry. Specifically in this project, Professor Chen works closely with his students to 1) further develop theory and software for spectral interpretation; 2) demonstrate the study of nitrogen dioxide (NO2) as the sample molecule using this technique; 3) combine the new spectroscopic technique with a high resolution, coherent, two dimensional spectroscopic method to improve the speed of data collection and information extraction; and 4) identify other interesting molecules that could benefit from the enhanced capability of this technique. At Spelman College, one of only two Historically Black Colleges for women in the US, many students in Professor Chen's lab are from underrepresented minority groups. With this project, he provides them with a stimulating undergraduate research experience that encourages and better prepares them to pursue graduate school. High resolution molecular spectroscopy is a mature technique with a long record of providing detailed information about molecular structure and behavior. However, many molecules have stubbornly resisted analysis because the spectra they produce are too heavily congested, perturbed, complex, and patternless. Furthermore, analytical applications of high resolution molecular spectroscopy are limited by difficulty in interpreting spectra when the sample is a mixture. The purpose of the project is to develop and explore the capabilities of High Resolution Coherent Three Dimensional (HRC3D) spectroscopy as a method for overcoming these limitations. In conjunction with a recently developed High Resolution Coherent Two Dimensional (HRC2D) technique, which has complimentary capabilities, these two tools provide an alternative method for studying polyatomic molecules (such as NO2) in systems that cannot be studied using existing methods.

在化学系化学测量和成像项目的支持下，斯佩尔曼学院的陈教授正在与本科生合作开发和研究斯佩尔曼发明的一种新的激光光谱技术。 这种新的三维光谱方法可以克服其他现有光谱形式在化学分子的性质和行为研究中的问题和局限性。具体来说，在这个项目中，陈教授与他的学生密切合作，1）进一步开发光谱解释的理论和软件； 2) 演示使用该技术对二氧化氮（NO2）作为样品分子的研究； 3）将新型光谱技术与高分辨率、相干、二维光谱方法相结合，提高数据采集和信息提取的速度； 4) 确定其他有趣的分子，这些分子可以从该技术的增强功能中受益。斯佩尔曼学院是美国仅有的两所历史悠久的黑人女子学院之一，陈教授实验室的许多学生来自代表性不足的少数群体。通过这个项目，他为他们提供了令人兴奋的本科生研究经验，鼓励他们并为他们攻读研究生做好更好的准备。 高分辨率分子光谱是一项成熟的技术，在提供有关分子结构和行为的详细信息方面有着悠久的记录。 然而，许多分子顽固地抵制分析，因为它们产生的光谱过于拥挤、扰动、复杂且无模式。 此外，当样品是混合物时，高分辨率分子光谱的分析应用由于难以解释光谱而受到限制。 该项目的目的是开发和探索高分辨率相干三维 (HRC3D) 光谱的功能，作为克服这些限制的方法。 结合最近开发的具有互补功能的高分辨率相干二维 (HRC2D) 技术，这两种工具为研究无法使用现有方法研究的系统中的多原子分子（例如 NO2）提供了一种替代方法。

项目成果

Optical Analogs to NMR spectroscopy

核磁共振波谱的光学模拟

• 发表时间: 2023-08
• 期刊: Physics today
• 影响因子: 3.5
• 作者: Wright, John C.;Chen, Peter C.
• 通讯作者: Chen, Peter C.

Multidimensional Pattern Recognition in High-Resolution 2D and 3D Spectra of Gas-Phase Molecules

气相分子高分辨率 2D 和 3D 光谱中的多维模式识别

• DOI: 10.1021/acs.accounts.2c00637
• 发表时间: 2023-01
• 期刊: Accounts of Chemical Research
• 影响因子: 18.3
• 作者: Chen; Peter C.
• 通讯作者: Peter C.