Organic reactions in liquid crystalline solvents. 5.
作者:William J. Leigh、Stephanus Jakobs
DOI:10.1016/s0040-4020(01)90258-3
日期:1987.1
of phenolic quenching.Quantum yields for Norrish II fragmentation in the liquid crystalline solvents have been estimated using 4-methoxyvalerophenone (MVP) as the actinometer. The ability of liquid crystalline solvents to inhibit intramolecular phenolic quenching is dependent on both phase type and solute length. In one case, Intramolecular quenching Is completely suppressed In smectic phases, indicating
已经研究了液晶顺序对通过适当定位的酚部分端到端地,芳族酮的分子内三重态猝灭所涉及的配偶运动的影响。使用两个独立的探针监测三重态猝灭:使用相应的茴香基取代的酮作为三重态行为的模型,在不进行酚类猝灭的情况下,对戊基取代的衍生物进行Norrish II片段化量子产率和甲基取代的酮的直接寿命测量使用4-甲氧基戊二酮(MVP)作为光度计,估计了液晶溶剂中Norrish II裂解的定量收率。液晶溶剂抑制分子内酚淬灭的能力取决于相类型和溶质长度。在一种情况下,相对于它们在非粘性,各向同性溶剂中的比率为3。在液晶溶剂中由MVP光解产生的Norrish II产品比率也受到液晶顺序的显着影响。