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处于近距离的两个金属能够与底物分子发生协同作用,使近距离内能锁住两个金属的配体体系得到了广泛的发展。四电子供体双齿膦配体 dppm(Ph_2PCH_2PPh_2)和 dppe(Ph_2PCH_2CH_2PPh_2)分别被认为是很好的桥联配体和螯合配体。本文利用双膦配体 dppm 和dppe 在甲醇中还原硝酸铜(Ⅱ)分别得到双核Cu(Ⅰ)配合物和单核 Cu(Ⅰ)配合物,通过一系列的分析手段对配合物的结构进行了表征。讨论了配体 dppm 和 dppe 的配位行为的差异。
The close proximity of two metals with the substrate molecules synergistic effect, so that the two can be locked within the metal ligand system has been widely developed. The four electron donor bidentate phosphine ligands dppm (Ph_2PCH_2PPh_2) and dppe (Ph_2PCH_2CH_2PPh_2) are considered as good bridging ligands and chelating ligands, respectively. In this paper, bis-copper ligand dppm and dppe were used to reduce copper (Ⅱ) nitrate in methanol to obtain the complexes of dinuclear Cu (Ⅰ) and mononuclear Cu (Ⅰ) respectively. The structures of the complexes were determined by a series of analytical methods Characterization. The differences in the coordination behavior of the ligands dppm and dppe are discussed.