Composite Formation of Anthrylene- and Ferrocenoyl-substituted Phenyleneethynylenes with Single-wall Carbon Nanotubes (SWCNTs)

H. Watanabe, K. Ekuni, Y. Okuda, R. Nakayama, K. Kawano, T. Iwanaga, A. Yamaguchi, T. Kiyomura, H. Miyake, M. Yamagami, T. Tajima, T. Kitai, T. Hayashi, N. Nishiyama, Y. Kusano, H. Kurata, Y. Takaguchi,* A. Orita,*

Anthrylene- and ferrocenoyl-assisted composite fabrication was achieved between visible-light absorbing anthrylene- and ferrocenoyl-substituted acetylenic dyes and single-wall carbon nanotubes (SWCNTs). The composite formation was con- firmed via UV-Vis, Raman, mass, and XPS spectra analyses. In the UV-Vis absorption spectrum, the resulting dye-SWCNT composites showed bathochromic shifts ascribable to the π-π interaction. One-pot fabrication of the composite was also accomplished via Cu-catalyzed dimerization of anthrylene- and ferrocenoyl-substituted terminal ethyne and the subsequent
adsorption of the resulting butadiyne dye to SWCNT. We con- firmed that the dye-SWCNT composite dispersed in water by using amphiphilic poly(amidoamine)dendrimer could transfer an electron from 1-benzyl-1,4-dihydronicotinamide (BNAH) to methyl viologen dichloride (MV2+) upon irradiation with visi- ble light (>422 nm).

Bull. Chem. Soc. Jpn. 

Chemical Society of Japan

96

1

57

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