Enforcing geometrical constraints on metal complexes using biphenyl-based ligands: spontaneous reduction of copper(II) by sulfur-containing ligands
作者:Mitchell R. Malachowski、Mark Adams、Nadia Elia、Arnold L. Rheingold、Richard S. Kelly
DOI:10.1039/a900223e
日期:——
N2S2 ligands, 2,2′-bis-(4-methylimidazol-5-yl)methylsulfanyl)biphenyl (N2S2-mim) and 2,2′-bis(2-pyridylmethylsulfanyl)biphenyl (N2S2-mpy), have been synthesized and their complexation with copper(II) precursors studied. In order to assess whether the biphenyl ring is influencing the geometry around the copper atom, the NS ligand 1-methyl-4-(2-pyridylmethylsulfanyl)benzene (NS-mpy) and its copper complexes
两个基于联苯的N 2 S 2配体,2,2'-双-(4-甲基咪唑-5-基)甲基硫烷基)联苯(N 2 S 2 -mim)和2,2'-双(2-吡啶基甲基硫基)联苯(N 2 S 2 -mpy),已经合成,并且研究了它们与铜(II)前体的络合作用。为了评估联苯环是否影响铜原子周围的几何形状,制备了NS配体1-甲基-4-(2-吡啶基甲基硫烷基)苯(NS-mpy)及其铜配合物。还制备了其中硫已被氮取代的N 4配体2,2′-双-(2-吡啶基甲基氨基)联苯(N 4 -mpy)。N 4的处理-mpy与铜(II)盐的反应导致分离出具有式[Cu(N 4 -mpy)] X 2的铜(II)配合物,其中X = ClO 4或BF 4。通过元素分析,红外光谱,FAB MS和电化学相结合的方法对这些配合物进行了分析。同样,用铜(II)盐处理NS-mpy导致分离铜(II)配合物[Cu(NS-mpy)2 ] [ClO 4 ] 2或[Cu(NS-mpy)2