Linear Conjugated Systems Bearing Aromatic Terminal Groups. III. The Synthesis and the Electronic Spectra of 1,1′-Dinaphthyl- and 2,2′-Dinaphthylpoly-ynes

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概要

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• 1,1′-Dinaphthylpoly-ynes (I<I><SUB>n</SUB></I>, <I>n</I>=1–6) and 2,2′-dinaphthylpoly-ynes (II<I><SUB>n</SUB></I>, <I>n</I>=1–6) were synthesized, and their electronic spectra were measured. The I<I><SUB>n</SUB></I>-series gave an excellent agreement with the λ<SUB>max</SUB>∝<I>n</I><SUP>1.5</SUP> relationship, and the II<I><SUB>n</SUB></I>-series followed a straight line, λ<SUB>max</SUB>∝<I>n</I><SUP>1.3</SUP>. These relationships are different from those of 1,1′-dianthryl- and 9,9′-dianthrylpory-ynes, in which the plots of λ<SUB>max</SUB> <I>versus</I> <I>n</I><SUP>2</SUP> give excellent straight lines (<I>Bull. Chem. Soc. Jap.</I>, <B>39</B>, 2320 (1966); <B>40</B>, 340 (1967)). The new linear relationships found in the dinaphthyl-series offer further evidence of the prominent effect of the terminal groups upon the electronic spectral properties of the conjugated poly-yne system.

• 公益社団法人 日本化学会の論文

著者

• Akiyama Shuzo

  Department of Applied Physics and Chemistry, Fukui University of Technology

• Nakasuji Kazuhiro

  Department Of Chemistry Graduate School Of Science Osaka University

• Nakagawa Masazumi

  Department of Chemistry Faculty of Science Osaka University

• Akashi Kazuko

  Department of Chemistry, Faculty of Science, Osaka University

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