首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Synthesis and characterisation of novel zirconium(IV)derivatives containing the bis-amido ligand SiMe__2(NRR')__2
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Synthesis and characterisation of novel zirconium(IV)derivatives containing the bis-amido ligand SiMe__2(NRR')__2

机译:含双酰胺配体SiMe__2(NRR')__ 2的新型锆(IV)衍生物的合成与表征

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The silicon compounds SiMe_2(NRR')_2 [NRR'=NMe_2(1),NEt_2(2),NC_4H_8(3),NHEt(4),NH~iPr(5),NH'Bu(6),NMeBu(7)] have been synthesised via aminolysis of the dichloro species SiMe_2Cl_2 and their ligating ability has been investigated towards zirconium(IV).The dimer zirconium compound {Zr[(N'Pr)_2SiMe_2]_2}_2(8)has been synthesised by reacting ZrCl_4 with the lithium salt Li_2[(N'Pr)_2SiMe_2] and its molecular structure has been determined in the solid state by X-ray diffraction analysis.The reaction of ZrCl_4 with SiMe_2(NRR')_2 yields the Lewis adducts ZrCl_4[(NRR')_2-SiMe_2] [NRR'=NMe_2(10),NC_4H_8(11),NHEt(12),NH'Pr(13),NH'Bu(14),NMeBu(15)].On the other hand,the mixed amido derivative Zr(NMe_2)_3(NHMe)[(N'Bu)SiMe_2(NH'Bu)](9)has been obtained from the reaction of Zr(NMe_2)_4 with SiMe_2(NH'Bu)_2.The solution molecular structure and dynamics of the zirconium derivatives have been elucidated by ID and 2D multinuclear NMR spectroscopy.
机译:硅化合物SiMe_2(NRR')_ 2 [NRR'= NMe_2(1),NEt_2(2),NC_4H_8(3),NHEt(4),NH〜iPr(5),NH'Bu(6),NMeBu(7 )]通过二氯物种SiMe_2Cl_2的氨解反应合成,并研究了它们与锆(IV)的连接能力。二聚锆化合物{Zr [(N'Pr)_2SiMe_2] _2} _2(8)通过反应合成ZrCl_4与锂盐Li_2 [(N'Pr)_2SiMe_2]的分子结构已通过X射线衍射分析确定。ZrCl_4与SiMe_2(NRR')_ 2的反应生成路易斯加合物ZrCl_4 [[ NRR')_ 2-SiMe_2] [NRR'= NMe_2(10),NC_4H_8(11),NHEt(12),NH'Pr(13),NH'Bu(14),NMeBu(15)]。另一方面,由Zr(NMe_2)_4与SiMe_2(NH'Bu)_2反应得到混合酰胺衍生物Zr(NMe_2)_3(NHMe)[(N'Bu)SiMe_2(NH'Bu)](9)。锆衍生物的溶液分子结构和动力学已通过1D和2D多核NMR光谱进行了阐明。

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