光化学反应是最基本也是最重要的物理化学过程之一,在诸多领域有着广泛的应用。由于计算方法的限制以及光化学反应过程的错综复杂性,光化学反应机理的从头算研究是极具挑战性的国际前沿课题之一。本文综述了近20年来羰基化合物光化学反应机理从头算研究的一些进展,总结了羰基化合物电子激发态的特性和光化学反应过程的规律性,为深入研究光化学反应提供一些有用的信息。
Photochemical reaction is one of the most basic, but very important, physical and chemical process, which plays a unique role in many fields. Photochemical reaction is quite difficult to explore theoretically, due to the limit of present computational methods and complication of photochemical reaction processes. This makes it a challenging subject in chemistry and the related fields. The present paper focuses mainly on ab initio studies of excited-state nature and mechanistic photochemistry of carbonyl compounds, which provide some useful information for further investigation of photochemical reactions.