Cyclic phosphenium (1a) and arsenium (1b) cations are formed either by treatment of germylene 2b with ECl3 (E = P, As) or via the metathetical reaction of LiN(But)CCN(But)Li with ECl3 and the structures of 1a and 1b are compared with those of pertinent saturated analogues.
环
磷鎓离子 (1a) 和环
砷鎓离子 (1b) 通过将 germylene 2b 与
ECl3 (E = P, As) 反应或通过 LiN(But)CCN(But)Li 与
ECl3 的置换反应形成,并比较了 1a 和 1b 的结构与相关的饱和类似物。