Self-Assembly and Substituent Effect of Copper(I) Complexes with 1,2-Bis(2-pyridylethynyl)benzene Ligands
作者:Tomikazu Kawano、Jun Kuwana、Ikuo Ueda
DOI:10.1246/bcsj.76.789
日期:2003.4
The reaction of 1,2-bis(2-pyridylethynyl)benzenes (L1–L5) with copper(I) ions proceeded smoothly to afford mononuclear copper(I) chelate complexes CL1–CL3 or dinuclear copper(I) molecular rectangular boxes, CL4 and CL5, in excellent yields, depending on the size of the substituent. If a ligand with a small substituent was used, the self-assembly of a mononuclear copper(I) chelate complex was achieved. If a ligand with a bulky substituent was used, the self-assembly of dinuclear copper(I) molecular rectangular boxes was achieved. The equilibrium between these two copper(I) complexes was also observed in solution.
1,2-双(2-吡啶乙炔基)苯(L1–L5)与铜(I)离子的反应顺利进行,根据取代基的大小,以优异的产率得到了单核铜(I)螯合配合物CL1–CL3或双核铜(I)分子矩形盒CL4和CL5。如果使用具有小取代基的配体,则实现了单核铜(I)螯合配合物的自组装。如果使用具有大取代基的配体,则实现了双核铜(I)分子矩形盒的自组装。这两种铜(I)配合物之间的平衡在溶液中也有所观察。