The Photophysics of Condensed Phase and Gas Phase Porphyrins and Other Comparably Large Molecules

在化学部的这个项目中，罗德里格斯将 探索、量化和记录液体或固体的影响 介质的静态和动态光学性质 卟啉以及其他类似的大分子， 作为激光染料。 在这项研究中，动态和静态光学 将比较卟啉在气相中的性质 与那些在凝聚相中使用静态和 时间分辨的方法，跨越飞秒到秒的时间 鳞片 感兴趣的性质包括振动动力学， 电荷转移过程和货车德瓦尔斯相互作用 凝相介质 %%% 我们目前对大型生物行为的理解 分子系统是基于获得的实验数据， 这些分子在液体或固体宿主中。 但 分子与宿主的相互作用可以改变它们的 行为，很少努力致力于记录 这些影响的程度。 的结果予以 在这个少数民族启动项目下进行的调查将 提供一个框架，以判断这些媒体对 各种系统，包括生物学上重要的过程。

In this project in the Chemistry Division, Rodriguez will explore, quantify, and document the effect of a liquid or solid medium on the static and dynamic optical properties of porphyrins as well as on other comparable large molecules such as laser dyes. In this study, the dynamic and static optical properties of porphyrins in the vapor phase will be compared with those measured in the condensed phase using static and time-resolved methods that span the femtosecond- to second-time scales. Properties of interest include vibrational dynamics, charge-transfer processes, and van der Waals interactions with condensed-phase media. %%% Much of our present understanding of the behavior of large molecular systems is based on experimental data acquired on these molecules in liquid or solid hosts. However, the interaction of the molecules with the host can modify their behavior, and little effort has been devoted to document the magnitude of these effects. The results of these investigations under this Minority Initiation project will provide a framework for judging the effects of these media on various systems, including biologically important processes.