We observed pressure effects on the rate of thermal fading of colored chromene 1 photochemically generated from 2 in ionic liquids. The reaction rates were retarded with increasing pressure in [C4-mim][CS], [bzl-mim][Tf2N], and [mnp-mim][Tf2N], whereas the reaction rate increased with pressures in [C4-mim][Tf2N]. These pressure-induced retardations, so-called dynamic solvent effects, result from the slow thermal fluctuations of solvents.
我们观察到在
离子液体中,压力对由2光
化学生成的有色克罗梅1的热褪色速率的影响。随着压力的增加,在[C4-mim][CS]、[bzl-mim][Tf2N]和[mnp-mim][Tf2N]中,反应速率减缓,而在[C4-mim][Tf2N]中,反应速率随着压力的增加而增加。这些由压力引起的减缓,称为动态溶剂效应,源于溶剂的缓慢热波动。