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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Organogallium- and organozinc-rich palladium and platinum clusters
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Organogallium- and organozinc-rich palladium and platinum clusters

机译:富含有机镓和有机锌的钯和铂簇

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The heteroleptic, binuclear compounds [M_2(GaCp*)_3(PMe_3)_2] (M = Pd: 1a, Pt: 1b, Cp* = pentamethylcyclopentadienyl) can be obtained if [Pd_2(dvds)_3] (dvds = 1,3-divinyl-1,1,3,3-tetramethyldisiloxane) or [Pt(COD)_2] (COD = cyclooctadiene) were treated with a 3: 2 ratio of GaCp* and PMe_3. A trinuclear complex [Pd_3(GaCp*)_3(PMe_3)_3] (2) was isolated from in situ prepared [Pd(PMe3)2Me2] and treatment with GaCp*. The new complexes were used as starting compounds for selective Ga/Zn exchange reactions to afford the dinuclear palladium compound [Pd_2(ZnCp*)(ZnMe)_3(PMe_3)_5] (3a) and the mononuclear platinum compound [Pt(ZnCp*)_2(ZnMe)_2(PMe_3)_2] (3b). The effects of a final transition metal count in organozinc ligated compounds and stabilization of Lewis acidic fragments like [Pd(PPh_3)_3], [Ni(C_2H_4)_3] or [Mo(CO)_5] were presented and discussed. All compounds have been fully characterized by ~1H, ~(13)C, and ~(31)P NMR spectroscopy, mass spectrometry using a liquid injection field desorption ionization (LIFDI) method, elemental analysis, and single crystal X-ray diffraction studies and the coordination polyhedra were analysed by the method of continuous shape measure (CShM).
机译:如果[Pd_2(dvds)_3](dvds = 1,3),则可以得到杂配双核化合物[M_2(GaCp *)_ 3(PMe_3)_2](M = Pd:1a,Pt:1b,Cp * =五甲基环戊二烯基)用GaCp *和PMe_3的3:2比例处理-divinyl-1,1,3,3-四甲基二硅氧烷)或[Pt(COD)_2](COD =环辛二烯)。从原位制备的[Pd(PMe3)2Me2]中分离出三核复合物[Pd_3(GaCp *)_ 3(PMe_3)_3](2),并用GaCp *处理。新的络合物用作选择性Ga / Zn交换反应的起始化合物,以提供双核钯化合物[Pd_2(ZnCp *)(ZnMe)_3(PMe_3)_5](3a)和单核铂化合物[Pt(ZnCp *) _2(ZnMe)_2(PMe_3)_2](3b)。提出并讨论了有机锌连接化合物中最终过渡金属数量的影响以及路易斯酸性片段(如[Pd(PPh_3)_3],[Ni(C_2H_4)_3]或[Mo(CO)_5]的稳定化的影响。所有化合物均已通过〜1H,〜(13)C和〜(31)P NMR光谱,使用液体注入场解吸电离(LIFDI)方法的质谱,元素分析和单晶X射线衍射研究得到了充分表征采用连续形状测量法(CShM)分析了配位多面体。

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