An Acid-Responsive Single Trichromatic Luminescent Dye That Provides Pure White-Light Emission

• Imamura, Keigo

• Ueno, Yoshifumi

• Akimoto, Seiji

• Eda, Kazuo

• Du, Yanqing

• Eerdun, Chaolu

• Wang, Meiling

• Nishinaka, Kumiko

• Tsuda, Akihiko

Bibliographic Information

Other Title

• An Acid‐Responsive Single Trichromatic Luminescent Dye That Provides Pure White‐Light Emission

Abstract

A novel acid-responsive single trichromatic luminescent dye capable of emitting pure white light (WL) is reported. A newly designed p-phenylene-bridged bipyrrole bearing N-alkylimino groups (1a) specifically provides WL emission upon mixing with trifluoroacetic acid (TFA) in a CH2Cl2 solution. The emission originates from the trichromatic luminescent behavior of 1a upon protonation of the imino groups. The blue-light-emitting 1a exhibits dramatic color changes in fluorescence to orange and green upon mono- and diprotonation, respectively, providing a wide emission band in the range of λ=400-800 nm that provide WL when the compound is in a dynamic equilibrium between the three states. The sample also exhibits low self-absorption of the emitted light and a high fluorescence quantum yield upon excitation with UV light

Journal

• Chemphotochem

  Chemphotochem 1 (10), 427-431, 2017-10

  Wiley-VCH Verlag

Keywords

• charge transfer
• chromophores
• luminescence
• protonation
• white-light emission

Details

• CRID: 1050294045370526592
• NII Article ID: 120006454547
• DOI: 10.1002/cptc.201700108
• ISSN: 23670932
• HANDLE: 20.500.14094/90004759
• Web Site: https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fcptc.201700108
• Web Site: http://onlinelibrary.wiley.com/wol1/doi/10.1002/cptc.201700108/fullpdf
• Text Lang: en
• Article Type: journal article
• Data Source:
  • IRDB
  • Crossref
  • CiNii Articles
  • KAKEN