(BIAN) appended ligand. The X-ray crystal structures and spectroscopy (1H NMR or EPR) of the complexes within the series [Co(aqdBF2)2(MeCN)2] (1), [Co(aqdBF2)(MeCN)2]− (2) and [Co(aqdBF2)2(MeCN)2]2− (3, 3′) are reported and the 3-electron reduced complex [Co(aqdBF2)2(MeCN)2]3− (4) has been prepared in situ and characterized by 1H NMR spectroscopy. The X-ray crystal structures revealed the presence of
此处报道的是具有双(亚
氨基)ena(BIAN)附加
配体的
钴肟的合成和表征。[Co(aqdBF 2)2(MeCN)2 ](1),[Co(aqdBF 2)(MeCN)2 ]系列中配合物的X射线晶体结构和光谱学(1 H NMR或EPR)--(2)和[CO(aqdBF 2)2(MeCN中)2 ] 2-(3,3' )的报告和3电子还原络合物[CO(aqdBF 2)2(MeCN中)2] 3-(4)已经就地制备并且通过1 H NMR光谱表征。的X射线晶体结构揭示了6-坐标Co的存在II物种(1),一个5坐标
钴我种(2),和一个4坐标络合物(3,3' )。在复杂的情况下3,从单晶EPR光谱证据(克‖ = 2.017,克⊥= 1.987;<10 G的线宽)结合DFT计算表明,EPR信号起源于基于离域配体的不成对自旋。从DFT计算获得的前线轨道1,2,3,及4支撑被光谱观察到电子分配。
DMF溶液中溶剂同系物的