Half-sandwich rhodium and iridium fragments and carboxylate ligands as building blocks for the formation of metallamacrocycles
作者:Lin Lin、Qi-Jia Fan、Guo-Xin Jin
DOI:10.1016/j.jorganchem.2016.11.014
日期:2017.2
half-sandwich rhodium and iridium complexes containing carboxylate ligands were synthesized and characterized. Reactions between [Cp∗MCl2]2 (M = Ir or Rh) and 1,3,6-bis(2-pyridyl)-1,2,4,5-tetrazine (L1) gave binuclear complexes 1 and 2 under different conditions. The half-sandwich iridium and rhodium metallamacrocycles complexes 3–5 were constructed in a stepwise manner by the addition of carboxylate
合成并表征了一系列含有羧酸盐配体的半三明治铑和铱配合物。[Cp ∗ MCl 2 ] 2(M = Ir或Rh)与1,3,6-双(2-吡啶基)-1,2,4,5-四嗪(L1)之间的反应在不同条件下得到双核络合物1和2条件。的半夹心和铱铑metallamacrocycles络合物3 - 5以逐步的方式通过添加羧酸根配体(乙酸钠或吡嗪-2,3-二羧酸或3-(2-吡啶基)丙烯酸的共轭碱的构建)到由[Cp ∗ MCl2 ] 2(M = Rh或Ir)分别带有线性N,N'-供体配体(4,4'-联吡啶或反式-1,2-双(4-吡啶基)乙烯)。通过元素分析,IR,1 H NMR光谱和单晶X射线衍射确认了双核配合物和四核大环的结构。