The tantalum(V) compound tris(2-methylphenyl)silanolatotantalum tetrachloride–1.5-diethyl ether [(2-MeC6H4)3SiOTaCl4·1.5 (Et2O)](1) has been prepared and structurally characterised; on treatment with methylmagnesium chloride (4 equiv.)(1) gave solutions containing the apparently unstable tetramethyl derivative [(2-MeC6H4)3 SiOTaMe4]A and its decomposition product hexamethylbis[tris(2-methylphenyl)
                                    制备了三(2-甲基苯基)
硅烷醇合
钽钽-1.5-二
乙醚[(2-MeC 6 H 4)3 SiOTaCl 4 ·1.5(Et 2 O)](1)的
钽(V)化合物,并对其结构进行了表征;用
甲基氯化镁(4当量)处理(1),得到含有明显不稳定的四甲基衍
生物[(2-MeC 6 H 4)3 SiOTaMe 4 ] A及其分解产物六甲基双[三(2-甲基苯基)
硅烷醇基]二
钽的溶液。 ,[(2-MeC 6 H 4)3SiOTaMe 3 ] 2(2),从其中分离出纯净的(2)。