Aminosilanes as two-electron donors: A technological application of radical cation chemistry
作者:Ian R Gould、Stephen A Godleski、Paul A Zielinski、Samir Farid
DOI:10.1139/v03-073
日期:2003.6.1
sensitizers in silver halide photography. Here, we describe studies of the nucleophile-assisted cleavage reactions of the CSi bonds in their radical cations. Water is identified as a useful nucleophile. It is found that the kinetics of these reactions are best described by taking into account a radical cation water complex. The cleavage reactions are also controlled by steric effects at silicon and
氨基硅烷具有适当的结构特征,可用作卤化银摄影中的双电子敏化剂。在这里,我们描述了 C 12 Si 键在其自由基阳离子中的亲核辅助裂解反应的研究。水被确定为有用的亲核试剂。发现这些反应的动力学最好通过考虑自由基阳离子 ?? 水复合体。裂解反应也受硅的空间效应和羧酸盐基团的邻近性控制,该羧酸盐基团可以改变水的亲核性。裂解形成α-氨基自由基,可以向作为溶液相电子受体的9,10-二氰基蒽提供第二个电子。关键词:硅烷,自由基阳离子,双电子敏化,碎裂,空间效应。