作者:Andrea Christiansen、Chuanzhao Li、Marc Garland、Detlef Selent、Ralf Ludwig、Anke Spannenberg、Wolfgang Baumann、Robert Franke、Armin Börner
DOI:10.1002/ejoc.201000037
日期:2010.5
The tautomeric behaviour of five secondary phosphane oxides (SPOs) with different electronic properties has been investigated by NMR and IR spectroscopy, density functional theory calculations and X-ray structural analysis. Proof is given that only with strong electron-withdrawing groups on the phosphorus atom can the relevant trivalent phosphinous acid be observed in the equilibrium, whereas in the
通过核磁共振和红外光谱、密度泛函理论计算和 X 射线结构分析研究了五种具有不同电子性质的二级磷烷氧化物 (SPO) 的互变异构行为。证明只有在磷原子上具有强吸电子基团才能在平衡中观察到相关的三价次膦酸,而在富电子磷烷氧化物的情况下,五价物质占主导地位。对于红外光谱的详细分析,解卷积程序 BTEM 已成功应用。