Photoinduced heterolysis of the carbon-oxygen bond in bichromophoric 1-arylmethyloxy-2-pyridones
作者:Tadamitsu Sakurai、Kanji Kubo、Shunsuke Kojima、Takuya Shoro、Hiroyasu Inoue
DOI:10.1016/s0040-4039(98)02282-5
日期:1998.12
9-anthryl (1a) or a 1-pyrenyl group (1b) in methanol was found to give the heterolytic CO bond cleavage products: 1-hydroxy-2-pyridone and arylmethyl methyl ether, (which predominate for the reaction of 1a), along with 2-pyridone, aryl-substituted methanol and aryl aldehyde derived from the homolysis of the NO bond (that mainly occurs in the photolysis of 1b). Spectroscopic analysis of the ground-state
发现在甲醇中辐照具有9-蒽基(1a)或1-pyrenyl基团(1b)的标题化合物可得到杂合的CO键裂解产物:1-羟基-2-吡啶酮和芳基甲基甲基醚,(它们主要用于1a)的反应,以及2-吡啶酮,芳基取代的甲醇和芳基醛,其衍生自N = O键均化(主要发生在1b的光解中)。的接地状态,并且激发的单线态行为的光谱分析1揭示了一个非发射分子内激发复合体(其形成速率为在要快得多1A比在图1b)在诱导的CO键heterolysis关键作用。