Heterometal assembly in dendritic polyphenylazomethines

Kensaku Takanashi, Atsunobu Fujii, Reina Nakajima, Hiroshi Chiba, Masayoshi Higuchi, Yasuaki Einaga, Kimihisa Yamamoto

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34 Citations (Scopus)

Abstract

Fine-controlled metal-organic hybridization is strongly desired for advanced nano-materials. Dendrimers are highly branched organic macromolecules with successive layers or "generations" of branch units surrounding a central core. Metal-organic hybrid versions have also been produced by trapping metal ions or metal clusters within the voids of dendrimers. Here, we report a technique to form a dendritic organic structure, which includes various metals, with fine control over the number and location of the metal salts through a radial stepwise complexation. FeCl3, GaCl3,VCl 3, and SnCl2 were decorated on a phenylazomethine dendrimer with 4th generations at the first, second, third, and forth layers, respectively. These stepwise complexation and heterometal assembling were also supported by TEM observation, 57Fe Mössbauer spectroscopy, XPS measurement, and NMR spectroscopy.

Original languageEnglish
Pages (from-to)1563-1572
Number of pages10
JournalBulletin of the Chemical Society of Japan
Volume80
Issue number8
DOIs
Publication statusPublished - 2007 Dec 1

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ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Takanashi, K., Fujii, A., Nakajima, R., Chiba, H., Higuchi, M., Einaga, Y., & Yamamoto, K. (2007). Heterometal assembly in dendritic polyphenylazomethines. Bulletin of the Chemical Society of Japan, 80(8), 1563-1572. https://doi.org/10.1246/bcsj.80.1563