Solvation dynamics of electrons in aqueous environments

水合电子在自然界中无处不在，是一系列学科的核心自由基反应物的来源。在这里，这种水合电子的生产将在两种不同的环境中的阴离子激发后进行研究。第一个环境是散装水和生产和重组动力学将研究瞬态吸收光谱。第二个环境是水/空气和水/油界面，其中的动态将探测时间分辨二次谐波产生。后一部分的主要目的是了解溶剂化动力学如何在界面处或界面之间不同，以及如何将电子带到水界面的自由能随着界面的变化而变化。

Hydrated electrons are ubiquitous in nature and are a source of radical reactants that are central to a range of disciplines. Here, the production of such hydrated electrons will be studied following excitation of anions in two different environments. The first environment is bulk water and the production and recombination dynamics will be studied by transient absorption spectroscopy. The second environment is the water/air and water/oil interface, where the dynamics will be probed by time-resolved second harmonic generation. The main aim of the latter part is to understand how the solvation dynamics differ at or across interfaces and how the free energy of bringing an electron to a water interface changes as the interface changes.