Synthetic and spectroscopic studies of phosphoranides [PR(CN)2X]? and the crystal and molecular structure of [NEt4][PPh(CN)2Cl]
作者:Robert M. K. Deng、Keith B. Dillon、William S. Sheldrick
DOI:10.1039/dt9900000551
日期:——
Several new phosphoranides of the type [NR4][PR′(CN)2X](R′= Me, Et, Ph, or C6F5; X = Cl, Br, I, or NCS) have been synthesised, and characterised by means of 31P n.m.r. spectroscopy, elemental analysis, and (in some cases) i.r. spectroscopy. These are the first simple phosphoranides to be prepared with an organo group bound directly to phosphorus. Determination of the crystal structure of [Net4][PPh(CN)2Cl]
已合成了[NR 4 ] [PR'(CN)2 X](R'= Me,Et,Ph或C 6 F 5; X = Cl,Br,I或NCS)类型的几种新的磷酰胺,并通过31 P nmr光谱,元素分析和(在某些情况下)ir光谱进行表征。这些是要制备的第一个简单的带有直接与磷结合的有机基团的磷酰胺。对[Net 4 ] [PPh(CN)2 Cl]的晶体结构的测定表明,该阴离子具有扭曲的单体ψ-三角双锥体几何结构,具有苯基基团赤道和一个非常长的P-Cl轴向键,如先前观察到的在[PCl 4 ]中–离子。卤离子不会与PBu t(CN)2,PMe 2(CN)或PPh 2(CN)形成磷酰胺。