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

Hikaru Watanabe, Kento Ekuni, Yasuhiro Okuda, Ryo Nakayama, Keisuke Kawano, Tetsuo Iwanaga, Atsushi Yamaguchi, Tsutomu Kiyomura, Hideaki Miyake, Masahiro Yamagami, Tomoyuki Tajima, Takumi Kitai, Tomoya Hayashi, Naoto Nishiyama, Yoshihiro Kusano, Hiroki Kurata, Yutaka Takaguchi, Akihiro 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 confirmed 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 confirmed 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 visible light (>422 nm).

Bull. Chem. Soc. Jpn.​​​​

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10.1246/bcsj.20220308