One electron oxidation of dialkyl diselenides and ditellurides is achieved with NO+CF3SO3−. According to ab initio calculations the radical cations have a trans stucture. In the solid state they dimerize to rectangular units [R–Te]42+ and [R–Se]42+. The long Se⋯Se and Te⋯Te bond is obviously due to a π*–π* interaction.
通过 NO+CF3SO3- 实现了二烷基二硒化物和二碲化物的单电子氧化。根据 ab initio 计算,自由基阳离子具有反式结构。在固态下,它们二聚为矩形单元 [R-Te]42+ 和 [R-Se]42+。Se⋯Se 和 Te⋯Te 的长键显然是由于 π*-π* 相互作用造成的。