Diphenyl[2-(trifluorosilyl)ethyl]phosphine oxide was synthesized by the reaction of diphenyl[2-(triethoxysilyl)ethyl]phosphine oxide with boron trifluoride etherate. As shown by the ¹H, ¹³C, ¹⁹F, ³¹P, ²⁹Si multinuclear NMR spectroscopy data, the silicon atom in the molecule is tetracoordinate. The absence of P=O→Si interaction in diphenyl[2-(trifluorosilyl)ethyl]phosphine oxide, as follows from the comparison of the calculated [GIAO B3LYP/6-311++G(2d,p)] and experimental δ(²⁹Si) and δ(³¹P) values, is due to the formation of complex with BF₃ by the phosphoryl oxygen.

中文翻译：

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二苯基[2-（三乙氧基甲硅烷基）乙基]膦氧化物与三氟化硼醚化物的反应

通过二苯基[2-（三乙氧基甲硅烷基）乙基]膦氧化物与三氟化硼醚化物的反应合成二苯基[2-（三氟甲硅烷基）乙基]膦氧化物。如¹ H，¹³ C，¹⁹ F，³¹ P，²⁹ Si多核NMR光谱数据所示，分子中的硅原子是四配位的。通过比较[GIAO B3LYP / 6-311 ++ G（2d，p）]和实验值δ（[]]，在二苯基[2-（三氟甲硅烷基）乙基]氧化膦中不存在P = O→Si相互作用²⁹ Si）和δ（³¹ P）值是由于磷酰氧与BF ₃形成了络合物。