CAREER: Thermodynamics, Photophysics and Spectroscopy of Charge-Transfer Complexes

职业：电荷转移复合物的热力学、光物理学和光谱学

• 批准号: 9985299
• 负责人: Bradley Arnold
• 金额: $ 39万
• 依托单位: University of Maryland Baltimore County
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-02-01 至 2004-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9985299&HistoricalAwards=false
• 关键词: CAREER; Thermodynamics; Photophysics; Spectroscopy; Charge

This project integrates experimental physical organic chemistry and educational activities. The research aspects of this project deal with the understanding of electron-transfer reactivity. In particular, a unified and self-consistent model that can predict both absorption and emission processes has yet to be established. These studies gain in importance since the formation of ion pairs for excited charge transfer complexes is considerably more complex than was initially thought. Experiments to accurately determine association constants and absorption spectra for weakly bound complexes, together with time-resolved linear dichroism measurements, will be used to gain in understanding of the initial stages of photoinduced charge separation.With this CAREER Award, the Organic and Macromolecular Chemistry Program's Organic Dynamics Program supports the research and educational activities of Professor Bradley R. Arnold of the University of Maryland Baltimore County. The research being pursued deals with the interaction of discrete chemical entities between which electrons are being induced by light to move from one molecule to another. This is relevant to such studies as biological photochemistry such as photosynthesis and also to molecular devices. The educational aspects of the proposal deal with improving students' understanding of how computers interface with laboratory equipment and is being pursued in a hands-on, discovery approach.

该项目将实验物理有机化学和教育活动结合起来。 该项目的研究方面涉及对电子转移反应性的理解。 特别是，一个统一的和自洽的模型，可以预测吸收和排放过程尚未建立。 这些研究获得的重要性，因为离子对激发电荷转移复合物的形成是相当复杂的比最初认为的。 实验，以准确地确定缔合常数和吸收光谱的弱结合复合物，连同时间分辨线性二色性测量，将被用来了解光诱导电荷分离的初始阶段。有了这个职业奖，有机和高分子化学计划的有机动力学计划支持的研究和教育活动的教授布拉德利R。马里兰州巴尔的摩县大学的阿诺德。 正在进行的研究涉及离散化学实体之间的相互作用，电子被光诱导从一个分子移动到另一个分子。 这与诸如光合作用之类的生物光化学研究以及分子器件有关。 该提案的教育方面涉及提高学生对计算机如何与实验室设备接口的理解，并正在以实践和探索的方式进行。