The effect of the third sulfur on the stability of the respective radical cations and radicals is examined computationally and experimentally in a laser flash photolysis study. A straightforward synthetic approach to a variety of 4-substituted trithiabicyclo[2.2.2]octanes from 3-bromo-2,2-bis(bromomethyl)propanol is developed, making a diverse set of mass-differentiated photolabile tags readily available
三
噻吩双环[2.2.2]辛烷(
TTBO)和羰基化合物的加合物经过有效的光诱导裂解,其量子产率可与二
噻吩加合物相媲美。在激光闪光光解研究中,通过计算和实验研究了第三种
硫对各个自由基阳离子和自由基稳定性的影响。开发了一种直接合成方法,用于从3-溴-2,2-双(
溴甲基)
丙醇中合成各种4-取代的三
硫代
双环[2.2.2]辛烷,从而使易于区分的多种质量分化的光不稳定标签可用于组合编码。