Photochemistry of phosphenic chloride (ClPO<sub>2</sub>): isomerization with chlorine metaphosphite (ClOPO) and reduction by carbon monoxide
作者:Junjie Jiang、Bifeng Zhu、Xin Jiang、Bo Lu、Xiaoqing Zeng
DOI:10.1039/d2cp02986c
日期:——
Phosphenic chloride (ClPO2) is an elusive congener of nitryl chloride (ClNO2). By high-vacuum flash pyrolysis of 2-chloro-1,3,2-dioxaphospholane in the gas phase, ClPO2 has been efficiently generated and subsequently isolated in cryogenic N2, Ar, and CO matrices (10 K) for a first time study on its photochemistry. Upon 193 nm laser irradiation, ClPO2 isomerizes to the novel chlorine metaphosphite (ClOPO)
磷酰氯 (ClPO 2 ) 是一种难以捉摸的硝基氯 (ClNO 2 ) 同系物。通过 2-chloro-1,3,2-dioxaphospholane 在气相中的高真空闪蒸热解,ClPO 2已被高效生成并随后首次在低温 N 2、Ar 和 CO 基质 (10 K) 中分离对其光化学进行研究。在 193 nm 激光照射下,ClPO 2通过初始裂解 Cl-P 键 (→ ˙Cl + ˙PO 2 )异构化为新型偏亚磷酸氯 (ClOPO) ,随后在 N 2内部形成 Cl-O 键和 Ar 矩阵笼。在 266 nm 的进一步照射下,反向转变变得可行。这种光化学性质与观察到的 ClPO 2和 ClOPO 分别在 207 和 250 nm 处的吸收一致。当在固体CO冰中进行光解时,由于形成笼状自由基对ClCO˙⋯˙PO 2 ,最初生成的˙Cl原子被CO捕获,因此不会发生异构化。同时,观察到 CO 将 ClPO