Photochemistry based on acenes and their derivatives is one of the emerging research areas in the field of polycyclic aromatic hydrocarbons (PAHs). However, due to the increased reactivity of larger acenes towards light and singlet oxygen, it is difficult to precisely control their photochemical reactions. Therefore, the unexpected reactivity of acene-based molecules brings about two challenging topics: how to design stable acenes and how to utilize the photochemistry to design new acene-based functional materials. In this review, we first focus on the mechanism of photochemistry of acenes to theoretically understand how these reactions could have happened. Next, we will give a summary on both acene-based photocyclization and photooxidation reactions.

基于并苯及其衍生物的光化学是多环芳烃（PAHs）领域的新兴研究领域之一。然而，由于较大的并苯对光和单线态氧的反应性增加，因此难以精确控制它们的光化学反应。因此，基于并苯的分子的出乎意料的反应性带来了两个具有挑战性的主题：如何设计稳定的并苯以及如何利用光化学来设计新的基于并苯的功能材料。在这篇综述中，我们首先关注并苯的光化学机理，从理论上理解这些反应是如何发生的。接下来，我们将对基于并苯的光环化和光氧化反应进行总结。