Synthesis and Properties of Nitrogen-Introduced Phenylazomethine Dendrimer

Abstract

The pyridine ring–introduced phenylazomethine dendrimer (PyDPA) was synthesized by a dehydration reaction using titanium(IV) chloride. The ultraviolet–visible absorption and the electrochemical study showed that the introduction of the pyridine ring produces a smaller band gap by increasing the highest occupied molecular orbital level and decreasing the lowest unoccupied molecular orbital level. A crystal of a PyDPA-PdCl₂ complex was also prepared. Traditional phenylazomethine dendrimers cannot form a complex with palladium, indicating that PyDPA can potentially coordinate with various metal salts such as Co, Ni, Ru, and Mn and can be used for catalytic or electronic applications.

GRAPHICAL ABSTRACT

Keywords:

• Dendrimer
• phenylazomethine

ACKNOWLEDGMENT

K. A. thanks Dr. Yousuke Ochi for helping with the X-ray single-crystal structure analysis.

Notes

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