spectral and structural studies. In mononuclear complexes with ligand L1 it acted as tridentate chelating ligand coordinating metal center in a tridentate к3 fashion through both the pyridine and one azine nitrogen atom leading to the formation of five and six membered chelated rings. Ligand L2 in mononuclear complexes coordinated metal in a bidentate к2 mode coordinating through both the pyridine nitrogen's
研究了多齿嗪席夫碱
配体对d 6半夹心
金属络合物的反应。四齿嗪
配体L1以1:2或1:1M的比例与[(亚芳基)MCl 2 ] 2(亚芳基= 对-cymene,Cp *; M = Ru,Rh和Ir)反应生成式[[
芳烃)M L1к 3 (N,N',N'') }] 2+,而一个当量的反应[(
芳烃)的MC1 2 ] 2具有四个倍过量六齿配位体的吖嗪
L2,得到单核配合轴承式[ (
芳烃)M
L2к 2 (N,N' ) }] +。
L2的与反应[(p -cymene)的RuCl 2 ] 2在1:1分的M比,得到双核配合物[(p -cymene)2的Ru 2
氯2
L2к 4 (N,N',N'',N'' ´) ] 2+,而
L2与[Cp * MCl 2 ] 2的反应产生两个配位异构体(核和单核)。通过柱色谱分离配位异构体,并通过光谱和结构研究表征。与
配体L1单核配合它充当三齿螯合
配体配位的
金属中心在三齿к 3通