Oxidation of a phosphinidene oxide: formation of a dioxaphosphirane oxide with oxygen scrambling
Xianxu Chu, Chao Song, Yang Yang and Xiaoqing Zeng *（曾小庆）
College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China.
Chem. Commun., 2019, 55, 245--248
The oxidation of a prototypical phosphinidene oxide FPO has been studied in O2-doped Ar and N2 matrices at 10 K. Upon 266 nm laser irradiation, FPO combines with O2 and yields the cyclic peroxide, dioxaphosphirane oxide FP(O)(O2). Unexpected oxygen scrambling occurs during the oxygenation as evidenced by the observation of a 1 : 2 mixture of FP(16O)(18O18O) and FP(18O)(16O18O) when 18O2 was used. Quantum chemical calculations suggest that the scrambling happens via the intermediacy of the low-lying triplet FPO3 by passing minimum energy crossing points (MECPs). In addition, inorganic dioxophosphorane FP(O)2 has been also identified among the oxidation products of FPO.
链接：https://pubs.rsc.org/en/Content/ArticleLanding/2019/CC/C8CC08945K#!divAbstract
