Syntheses of Phosphoryl Chloro- and Bromofluorides and Crystal Structures of POFCl2 and POF2Cl
作者:Pavel Rovnaník、Zdirad Žák、Miloš Černík
DOI:10.1002/zaac.200500510
日期:2006.6
A simple procedure for the preparation of phosphoryl chlorofluorides, POFCl2 and POF2Cl, by chlorination of the appropriate potassium fluorophosphates, K2PO3F and KPO2F2, respectively, with PCl5 is described. The analogous bromination with PBr5 gives POFBr2 and POF2Br. However, due to low yields and high content of impurities, this method is not suitable for the synthesis of the former compound. Both
描述了通过分别用 PCl5 氯化适当的氟磷酸钾 K2PO3F 和 KPO2F2 来制备磷酰氯氟化物 POFl2 和 POF2Cl 的简单程序。用 PBr5 进行类似的溴化得到 POFBr2 和 POF2Br。但由于收率低、杂质含量高,该方法不适用于前一化合物的合成。两种氯氟化物都是在低温下从熔体中结晶出来的,它们的晶体结构在 120 K 下通过 X 射线衍射确定。POFCl2 的扭曲四面体分子仅通过分子间 O-Cl 接触形成无限链,与结晶 POCl3 类似。然而,在 POF2Cl 中,链是由 OP 接触形成的,