Synthesis and spectroscopic studies of phenyllead halide and thiocyanate adducts with hexamethylphosphoramide
作者:Ivor Wharf、Mario Onyschuk、Jack M. Miller、Timothy R.B. Jones
DOI:10.1016/s0022-328x(00)90634-x
日期:1980.5
Hexamethylphosphoramide (HMPA) adducts of the type Ph3PbX·HMPA (XCl, Br, I, and NCS), Ph2PbX2·2HMPA (XCl, Br, and I), and Ph2PbX2·HMPA (XBr and I), have been prepared and characterized by infrared, Raman, mass, and 31P nmr spectroscopy. Molecular weight and infrared solution data show that Ph3PbX·HMPA adducts dissociate in benzene, the degree of dissociation being NCS«ClI-Br>Cl for Ph3PbX·HMPA adducts. Corresponding
Ph 3 PbX·HMPA(XCl,Br,I和NCS),Ph 2 PbX 2 ·2HMPA(XCl,Br和I)和Ph 2 PbX 2 ·HMPA类型的六甲基磷酰胺(HMPA)加合物(XBr和I)已通过红外,拉曼,质谱和31 P nmr光谱进行了制备和表征。分子量和红外溶液数据表明,Ph 3 PbX·HMPA加合物在苯中解离,解离度为NCS«Cl I-Br> Cl 。比较了相应的锡和铅加合物的形成方式。