Novel squaraine signalling Zn(II) ions: three-state fluorescence response to a single input

Dilek G., Akkaya E.

TETRAHEDRON LETTERS, vol.41, no.19, pp.3721-3724, 2000 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 41 Issue: 19
  • Publication Date: 2000
  • Doi Number: 10.1016/s0040-4039(00)00474-3
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.3721-3724
  • Keywords: fluorescence, dyes, indolines/indolinones, molecular devices, ONE-POT SYNTHESIS, CHEMOSENSOR, LOGIC, RED, SENSORS, GATES
  • Middle East Technical University Affiliated: No


A novel metal ion sensitive 2,3,3-trimethyl-3H-indole-derived squaraine dye showing different fluorescence responses depending on the complexation stoichiometry has been synthesized. Thus, three levels of signals are attainable by varying the Zn(II) ion concentration. (C) 2000 Elsevier Science Ltd. All rights reserved.