2,6-Bis(porphyrin)-substituted Pyrazine: a New Class of Supramolecular Synthon Binding to a Transition-Metal Ion and Fullerene (C60)
Tetrahedron(2009)
摘要
2,6-Disubstituted-3,5-dimethylpyrazines have been synthesized via biased acetal synthesis from symmetric 2,3,5,6-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.
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关键词
Pyrazine,Porphyrin,Fullerene,Pd(II) complex
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