Mass spectrometry and quantum chemical studies of the reaction of divinyl telluride with secondary phosphine sulfides: Synthesis of adducts
作者:Nina K. Gusarova、Nataliya A. Chernysheva、Lyudmila V. Klyba、Vladimir A. Shagun、Svetlana V. Yas'ko、Vladimir I. Smirnov、Boris A. Trofimov
DOI:10.1016/j.jorganchem.2013.07.050
日期:2013.11
of sulfur atom. Under conditions of chemical ionization of phosphine sulfides 1 and 3, the process of their protonation with CH5+ followed by the elimination of sulfur atom from [НМ]+ ion is dominant. These data are also confirmed by the results of quantum chemical calculations of the most stable protonated structures of phosphine sulfides 1 and 3.
已经进行了二乙烯基碲化物与二苯基膦硫化物反应的质谱和量子化学研究。反应在自由基引发下进行(AIBN,63–68°C,2.5 h,THF,反应物摩尔比= 1:1),分别以67%和23%的收率得到抗马尔可夫尼科夫单加合物1和二加合物2。前者很容易分解,得到乙烯基二苯基膦硫醚3(产率63%),乙烯和元素碲,其结构主要代表纳米颗粒,其平均粒径为350-450 nm,由团聚体组成。化合物的电子电离质谱的比较分析1,2和3指出加合物1和2中碲原子的存在降低了它们的分子离子的稳定性并阻碍了硫原子的消除。下硫化膦的化学电离的条件1和3,它们与CH质子化的过程中5 +,随后硫原子的从消除[Н М ] +离子是主要的。这些数据也由最稳定的磷化氢硫化物1和3的质子化结构的量子化学计算结果证实。