Domalewski W, Stefaniak L, Potrzebowski M J, Webb G A
Institute of Organic Chemistry, Polish Academy of Sciences, Warsaw.
Solid State Nucl Magn Reson. 1994 Nov;3(6):353-6. doi: 10.1016/0926-2040(94)90019-1.
31P Cross-polarization magic-angle spinning nuclear magnetic resonance (CP-MAS NMR) spectra of eight monophospha-lambda 5-azenes were measured at room temperature. Three of these compounds, with 2-OH substituents, are in principle capable of taking part in the equilibrium process. However, only the open form, tautomer A, is found in the present study. 15N CP-MAS NMR spectra support the results. The most shielded component of the 31P chemical shift tensor lies in the direction of the P = N bond.
在室温下测量了八种单磷-λ⁵-氮烯的³¹P交叉极化魔角旋转核磁共振（CP-MAS NMR）光谱。其中三种带有2-OH取代基的化合物原则上能够参与平衡过程。然而，在本研究中仅发现了开放形式，即互变异构体A。¹⁵N CP-MAS NMR光谱支持了该结果。³¹P化学位移张量中屏蔽程度最高的分量位于P = N键的方向上。
