International Collaboration in Chemistry: Disentangling deactivation pathways in DNA bases & model systems using time-resolved photoelectron spectroscopy & three pulse tech

在这个由实验物理化学项目和国际科学与工程办公室资助的项目中，乔治亚大学的Susanne Ullrich教授和她的研究小组将利用时间分辨光电子能谱（TRPES）来研究光激发生物相关分子的弛化途径。乌尔里希小组将与英国考文垂华威大学的瓦西里奥斯·斯塔夫罗斯教授合作，他是时间分辨速度图成像（TRVMI）技术的专家。这两种超快技术的结合有望揭示多原子分子中典型的许多重叠电子状态的顺序，以及这些状态如何相互作用。初步实验将以1h -吡咯、1h -吡唑和1h -咪唑为重点，随后对DNA碱基进行研究。这项研究的结果将在光化学、光生物学甚至纳米技术方面具有广泛的意义。此外，这项美英合作的努力将包括两个实验室之间的教授和学生交换。因此，参与研究的学生将受益于高度跨学科（化学、物理、生物）和国际经验。

In this project funded by the Experimental Physical Chemistry Program and the Office of International Science and Engineering, Professor Susanne Ullrich of the University of Georgia and her research group will employ time-resolved photoelectron spectroscopy (TRPES) to study the relaxation pathways of photoexcited biologically relevant molecules. The Ullrich group will collaborate with Professor Vasilios Stavros of Warwick University in Coventry, UK, who is a specialist in a technique called time-resolved velocity map imaging (TRVMI). The combination of these two ultrafast techniques is expected to reveal the order underlying the many overlapping electronic states typical of polyatomic molecules and how these states interact with one-another. Initial experiments will focus on 1H-Pyrrole, 1H-Pyrazole, and 1H-imidazole species, followed by research on the DNA base species.The results of this research will have broad implications in photochemistry, photobiology, and even nanotechnology. In addition, this US - UK collaborative effort will involve the exchange of professors and students between the two laboratories. Students involved in the research will therefore benefit from a highly interdisciplinary (chemistry, physics, biology) and international experience as well.