作者:Johannes Ammer、Herbert Mayr
DOI:10.1002/poc.3064
日期:2013.1
benzhydrylium ions in mixtures of 1,1,1,3,3,3‐hexafluoro‐2‐propanol (HFIP) and water ranging from 50 to 99% HFIP (w/w) were determined by laser flash photolytic generation of benzhydrylium ions from benzhydryl triarylphosphonium salts in these solvents. From these rate constants, we derived the solvent‐specific reactivity parameters N1 and sN for HFIP/water mixtures as defined by the linear free energy relationship
捕获在1,1,1,3,3,3-六氟-2-丙醇(HFIP)和水范围从50到99的混合物中捕获的各种供体和受体取代的苯甲基铵离子的一阶速率常数k 1通过在这些溶剂中由苄基三芳基phosph盐进行激光闪光光解生成苄基离子来确定HFIP(w / w)的百分比。从这些速率常数中,我们得出HFIP /水混合物的溶剂特异性反应性参数N 1和s N,由线性自由能关系lg k 1(20°C)= s N(N 1 + E)。版权所有©2012 John Wiley&Sons,Ltd.