was observed at 611 cm−1 that shifted to 586 cm−1 upon H218O2. The bis(μ-oxo)dinickel(III) intermediates 2X undergo an efficient aromatic ligand hydroxylation reaction, producing a mononuclear nickel(II)-phenolate complexes 4X via a putative intermediate (μ-phenoxo)(μ-hydroxo)dinickel(II) (3X). The kinetic studies on the aromatic ligand hydroxylation process including m-substituent effects (Hammett analysis)
镍(II)配合物1 X由双[(
吡啶-2-基)甲基]
苄胺三齿
配体负载,在其6位上带有m-取代的苯基(X = OMe,Me,H,Cl,NO 2)
吡啶供体基团(L X,N,N-双[(6 - m-取代的苯基
吡啶-2-基)甲基]
苄胺)已经合成并表征。X射线晶体学分析显示[Ni II(L H)(CH 3 CN)(H 2 O)](ClO 4)2(1 H),[Ni II(L OMe)(
CH3 CN)(MeOH)](ClO 4)2(1 OMe),[Ni II(L Me)(CH 3 CN)(H 2 O)](ClO 4)2(1 Me)和[Ni II( L Cl)(CH 3 CN)(H 2 O)](ClO 4)2(1 Cl)具有五坐标的方形
金字塔几何形状,而[Ni II(L NO 2)(CH 3 CN)2(H 2 O)](ClO 4)2(1 NO 2)具有六坐标的八面体几何形状,并带有额外的CH 3 CN共
配体。CD