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

该项目将实验物理、有机化学和教育活动相结合。本项目的研究内容涉及对电子转移反应性的理解。特别是，尚未建立一个既能预测吸收过程又能预测排放过程的统一和自洽的模型。这些研究变得越来越重要，因为激发电荷转移络合物的离子对的形成比最初认为的要复杂得多。准确测定弱结合络合物缔合常数和吸收光谱的实验，以及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马里兰大学巴尔的摩县大学的布拉德利·R·阿诺德教授的研究和教育活动。正在进行的研究涉及离散化学实体之间的相互作用，这些实体之间的电子被光诱导从一个分子移动到另一个分子。这与光合作用等生物光化学研究有关，也与分子装置有关。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交互的理解，并正在以动手、发现的方式进行。

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.