Stabilization of Copper(III) Ions with Deprotonated Hydroxyiminoamide Ligands: Syntheses, Structures, and Electronic Properties of Copper(II) and Copper(III) Complexes
作者:Jan Hanss、Alexander Beckmann、Hans-Jörg Krüger
DOI:10.1002/(sici)1099-0682(199901)1999:1<163::aid-ejic163>3.0.co;2-x
日期:1999.1
copper(III) complexes were prepared with two novel ligands, N,N′-bis(2-(1-hydroxyimino-2-methyl-1-phenyl)propyl)dimethylmalondiamide (H4mal55) and N,N′ bis(-(1-hydroxyiminoethyl)phenyl)dimethylmalondiamide (H4mal66), both of which contain two amide and two oxime functionalities as potential ligand donor groups. The two copper(II) complexes (NEt4)[Cu(Hmal55)] (1) and (NEt4)[Cu(Hmal66)] (2) can be reversibly
铜 (II) 和铜 (III) 配合物用两种新型配体 N,N'-双 (2-(1-羟基亚氨基-2-甲基-1-苯基)丙基)二甲基丙二酰胺 (H4mal55) 和 N,N' 制备双(-(1-羟基亚氨基乙基)苯基)二甲基丙二酰胺(H4mal66),它们都含有两个酰胺和两个肟官能团作为潜在的配体供体基团。两种铜 (II) 配合物 (NEt4)[Cu(Hmal55)] (1) 和 (NEt4)[Cu(Hmal66)] (2) 可以在 –0.120 和 –0.075 V 的氧化还原电位下在乙腈中可逆氧化. 分别是 Fc/Fc+ 氧化还原对。虽然 1 的定量电解导致制备出足够稳定的氧化络合物 [Cu(Hmal55)] (3),但由于其长期不稳定性,并未尝试分离 2 的氧化产物。通过各种光谱方法(UV-vis、ESR、NMR和IR光谱)和X射线结构分析研究了配合物的性质。复合物的结构测定和光谱研究揭示了固态和乙腈溶液中每种复合物的方形平面