作者:V. V. Sharutin、O. K. Sharutina、A. N. Efremov
DOI:10.1134/s0036023620010155
日期:2020.1
AbstractNew ionic antimony complexes with a three-coordinated carbon atom in their cations, namely, [(Ph4SbO)3C]+[OSO2C6H3(NO2)2-2,4]– ⋅ 3PhH (32%) and [(p-Tol4SbO)3C]+Br– (traces), have been isolated when the products of reactions between pentaphenylantimony and 2,4-dinitrobenzenesulfonic acid and between penta(p-tolyl)antimony and hydrobromic acid were crystallized from a benzene–octane mixture in air
摘要新型离子锑配合物在它们的阳离子的三配位碳原子上,即,[(PH 4非晶态SbO)3 C] + [OSO 2 C ^ 6 ħ 3(NO 2)2 -2,4] - ⋅3PhH(32% )和[(p -Tol 4 SbO)3 C] + Br –(痕量),是在五苯基锑和2,4-二硝基苯磺酸之间以及五(p在空气中从苯-辛烷混合物中结晶出甲苯基)锑和氢溴酸,以及目标产物,例如四苯基锑2,4-二硝基苯磺酸盐和四(对甲苯基)溴化锑。阳离子已基本为平面СO 3锑3核心。ОСО和COSb角接近120°,而C–O键的变化范围为1.277(4)–1.290(3)Å,Sb–O距离(2.266(2)–2.299(2)Å)超过锑和氧原子的共价半径之和。在实验上已经确定,由于上述反应的目标产物与双(四芳基锑)碳酸酯之间的相互作用而形成了这些络合物,所述碳酸双(四芳基锑)碳酸酯也是在这些反应的条件下由五芳基锑和大气二氧化碳形成的。