稳定的二烷基次膦基2,2,5,5-tatrakis(trimethylsilyl)-1-phosphacyclopentan-1-yl(R H 2 P •)在-0.24和-2.29 V处均显示出不可逆的单电子氧化峰和还原峰vs二茂铁/二茂铁nium。在18-crown-6(18-c-6)或[2.2.2] cryptand(crypt-222)存在下,用KC 8单电子还原R H 2 P •得到相应的磷化物[K(18- c-6)] + [R H 2 P] -和[K(crypt-222)] + [R H 2 P] -。而[K(18-c-6)] + [R H 2P] -以接触离子对的形式存在,[K(crypt-222)] + [R H 2 P] -以固态的溶剂分离的离子对形式存在。R H 2 P •与AgOTf的反应得到了意想不到的产物,磷酸银(I)磷烯络合物。
3p orbital of the dicoordinated phosphorus atom. A distinct absorption band due to the electronic transition from nonbonding electron pair orbital to singly occupied 3p orbital on the phosphorus atom of 1 was observed at 445 nm in solution. Phosphinyl radical 1 underwent facile reaction with carbontetrachloride, hydrogen abstraction, and a unique reaction with a persistent radical, galvinoxyl, giving