Experimental probes of the singlet-triplet gap, photophysics and photochemistry of simple carbenes

在这个由化学系实验物理化学项目资助的项目中，马奎特大学的里德教授将利用线性和非线性光谱技术对卡宾的光谱、光物理和光化学性质进行各种研究。这项工作包括两个部分，并将重点放在这些系统的最低电子态之间的单态-三态间隙。第一部分将致力于表征一系列具有单电子基态和可变单态-三重态的卤代卡宾的自旋-轨道能隙和自旋-轨道相互作用。第二部分将研究卤代卡宾的光物理和光化学。由于卡宾的反应性质，实验挑战阻碍了对这些性质的理解的进展。简单的卤代卡宾在地球上层大气的化学中扮演着重要的角色，这项工作将大大有助于我们对这些反应系统的理解。这项研究将在研究生和本科生中进行，他们将在当代物理化学方面获得有价值的培训。

In this project, funded by the Experimental Physical Chemistry Program of the Chemistry Division, Prof. Reid of Marquette University will conduct a variety of investigations on the spectroscopic, photophysical and photochemical properties of carbenes by means of linear and nonlinear spectroscopic techniques. The work consists of two parts and will focus on the singlet-triplet gap between the lowest electronic states of these systems. The first part will be devoted to the characterization of the spin-orbit gap and spin-orbit mediated interactions in a series of halocarbenes with a singlet electronic ground state and variable singlet-triplet gaps. The photophysical and photochemistry of the halocarbenes will be studied in the second part. Progress in the understanding of these properties has been impeded by experimental challenges owing to the reactive properties of the carbenes. Simple halocarbenes play an important role in the chemistry of the earth's upper atmosphere and this work will go a long way toward the improvement of our understanding of these reactive systems. This research will be conducted with graduate and undergraduate students who will acquire valuable training in contemporary physical chemistry.