these results, two new photoreactions leading to permanent products were developed: (1) photosensitized dimerization of 1 and (2) photo-induced cross coupling of Q to porphyrins covalently linked with phenol group. The unique role of phenol in the photo-induced electron transfer reaction of TPP and Q in a non-polar solvent was discussed in terms of its dual function as both the proton and electron donor
主要通过CIDNP技术研究了
卟啉(
TPP)与
苯酚和/或醌在非极性苯溶液中的光反应。在
TPP与
4-甲氧基苯酚(1)的光反应中,CIDNP受
TPP-的影响。在包含
TPP,1和
对苯醌(Q)的三组分系统中,ESR和CIDNP指示生成的游离4-甲氧基
苯氧基自由基含量极高,且为1 +。基于这些结果,两个新的光反应导致永久性的产品被开发:(1)的光敏二聚1(2)Q与与
酚基共价连接的
卟啉的光诱导交叉偶联。讨论了
苯酚在非极性溶剂中
TPP和Q在光诱导的电子转移反应中的独特作用,同时兼顾了它作为质子和电子供体的双重作用。