作者:Chen-Ho Tung、Hongwei Wang、Yun-Ming Ying
DOI:10.1021/ja972657z
日期:1998.6.1
alkenes within the zeolites from the sensitizers in surrounding solution prevents them from undergoing electron transfer. On the other hand, singlet oxygen was produced in the solution and diffused into the internal framework of the zeolites to react with the alkenes. Thus, only singlet oxygen oxidation products were obtained and no product derived from superoxide radical anion was detected. By addition
包含在 Na- 内部骨架中的反式,反式-1,4-二苯基-1,3-丁二烯 (DPB)、反式二苯乙烯 (TS) 和 2,3-二氢-γ-吡喃 (DHP) 的光敏氧化研究了ZSM-5沸石。将吸附了烯烃的沸石样品悬浮在异辛烷或季戊四醇三甲醚 (PTE) 中,将敏化剂 9,10-二氰基蒽 (DCA) 和下克雷林 A (HA) 溶解在溶液中。与沸石的通道相比,敏化剂和溶剂的分子尺寸都更大。沸石中的烯烃与周围溶液中的敏化剂的隔离阻止了它们进行电子转移。另一方面,溶液中产生单线态氧并扩散到沸石的内部骨架中与烯烃反应。因此,仅获得单线态氧氧化产物,未检测到源自超氧自由基阴离子的产物。通过在烯烃吸附后加水,照片...