作者:Takashi Tamaki
DOI:10.1246/bcsj.51.1145
日期:1978.4
The photo-excitation of anthracene (1) in the presence of benzoyl chloride and its p- or m-substituted compounds (2) gave the corresponding 2- and 9-aroylanthracenes. No isomeric 1-aroylanthracenes (3) were detected. The aroyl chlorides (2) were found to quench the fluorescence of 1. The quenching constants obtained increased with increasing electron-withdrawing ability of the substituents and are
在苯甲酰氯及其对位或间位取代的化合物 (2) 存在下,蒽 (1) 的光激发得到相应的 2- 和 9- 芳基蒽。未检测到同分异构体 1-芳基蒽 (3)。发现芳酰氯 (2) 可以淬灭 1 的荧光。获得的淬灭常数随着取代基吸电子能力的增加而增加,并且与从量子产率测定中独立获得的那些一致。光芳酰化的效率取决于溶剂极性。结果表明了一种似是而非的光化学机制,其中涉及由 1 处于激发单线态和 2 处于基态形成的 CT 复合物。这种复杂的形成得到了产品分布中表现出的位置选择性的支持。