Emergence of Colorimetric Chemosensor Ability of Metal Ions in TCNQ Polyester by Postfunctionalization

• Washio Yusuke

  Department of Organic and Polymeric Materials, Tokyo Institute of Technology

• Michinobu Tsuyoshi

  Global Edge Institute, Tokyo Institute of Technology PRESTO, Japan Science and Technology Agency (JST)

抄録

Postfunctionalization of the 7,7,8,8-tetracyano-1,4-quinodimethane (TCNQ) polyester by a [2+2] cycloaddition-cycloreversion process with an aniline-activated alkyne provided the colorimetric chemosensor ability of metal ions. The precursor TCNQ polyester did not show any spectral changes upon the addition of Fe³⁺ and Ag⁺ ions, whereas the postfunctionalized polyester displayed well-defined color changes due to the recognition of these metal ions. For example, the Fe³⁺ ion was recognized by the anilino nitrogen atoms, resulting in the disappearance of the charge-transfer (CT) band. In contrast, the Ag⁺ ion was recognized by the cyano nitrogen atoms due to the effective multivalent coordination, leading to the bathochromic shift in the CT band. The control experiments using the monomeric model compound suggested that the visual distinction between these two metal ions was achieved by the polymer effect.

収録刊行物

• Journal of Photopolymer Science and Technology

  Journal of Photopolymer Science and Technology 25 (3), 267-270, 2012

  フォトポリマー学会

キーワード

• addition reaction
• charge-transfer
• chemosensor
• functionalization of polymers

詳細情報

• CRID: 1390282679301071360
• NII論文ID: 130004833450
• NII論文ID: 40019347509
• NII書誌ID: AA11576862
• DOI: 10.2494/photopolymer.25.267
• COI: 1:CAS:528:DC%2BC38XhtFegsb7P
• ISSN: 13496336
• ISSN: 09149244
• NDL書誌ID: 023822273
• Web Site: http://id.ndl.go.jp/bib/023822273
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I023822273
• Web Site: https://www.jstage.jst.go.jp/article/photopolymer/25/3/25_267/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可