2,6-Bis(porphyrin)-substituted pyrazine: a new class of supramolecular synthon binding to a transition-metal ion and fullerene (C60)
作者:Yusaku Eda、Kennosuke Itoh、Yoshio N. Ito、Toshio Kawato
DOI:10.1016/j.tet.2008.10.057
日期:2009.1
6-tetrakis(chloromethyl)pyrazine. The pyrazine ligands coordinated to trans-dichloropalladium(II) at the nitrogen whose neighboring carbons were connected to less hindered methyl groups. 2,6-Bis(porphyrin)-substituted pyrazine bound C60 to yield 1:1 inclusion complex. The binding of C60 with the pyrazine ligand and its zinc complex was determined by ESI-MS, NMR, and fluorescence spectroscopic analyses
2,6-二取代的3,5-二甲基吡嗪是通过偏缩醛合成由对称的2,3,5,6-四(氯甲基)吡嗪合成的。吡嗪配体在氮处与反式-二氯钯(II)配位,其相邻的碳与受阻较少的甲基相连。2,6-双(卟啉)取代的吡嗪键合C 60产生1:1的包合物。通过ESI-MS,NMR和荧光光谱分析确定C 60与吡嗪配体及其锌络合物的结合。