Synthesis and solid-state polymerization of diacetylene derivatives with an N-carbazolylphenyl Group

Masataka Ikeshima, Masashi Mamada, Hiroshi Katagiri, Tsuyoshi Minami, Shuji Okada, Shizuo Tokito

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

Four diacetylene derivatives with an N-carbazolylphenyl group as a donor moiety have been synthesized and subsequently characterized. These diacetylene derivatives undergo solid-state polymerization via UV irradiation, although these compounds have relatively large π-conjugated aromatic groups. The polymerization behaviors of these derivatives were confirmed by distinct absorption bands for polydiacetylenes. The reactive process is strongly influenced by the slightly differing side groups. Single crystal growth of the two compounds was successful and their crystal structure analyses revealed large differences in the molecular conformations and intermolecular geometries caused by a methylene unit. The HOMO population of the monomers is predominantly expressed in the phenyl carbazole unit, while each polymer showed differing HOMO energies with some polymers exhibiting high-lying HOMO levels.

Original languageEnglish
Pages (from-to)843-849
Number of pages7
JournalBulletin of the Chemical Society of Japan
Volume88
Issue number6
DOIs
Publication statusPublished - 2015
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Chemistry(all)

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