Electropolymerization and ion sensitivity of chemiluminescent thienyl systems

ASİL ALPTEKİN D., CİHANER A., ÖNAL A. M.

ELECTROCHIMICA ACTA, cilt.54, sa.26, ss.6740-6746, 2009 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 54 Sayı: 26
  • Basım Tarihi: 2009
  • Doi Numarası: 10.1016/j.electacta.2009.06.053
  • Dergi Adı: ELECTROCHIMICA ACTA
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.6740-6746
  • Anahtar Kelimeler: Chemiluminescence, Electroluminescence, Electropolymerization, Sensors, Forensic Science, Luminol, ACID, POLYTHIOPHENE, BIOSENSOR, TISSUE
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

Redox driven chemiluminescent (CL) compounds based on thienyl and pyridazine systems, namely 2,3-dihydrothieno(3,4-d)pyridazine-1,4-dione (T-Lum) and 5,7-di-thiophen-2-yl-2,3-dihydrothieno[3,4-d]pyridazine-1,4-dione (TTT-Lum), were synthesized. Soluble compounds both in organic media and basic aqueous solution were found to give CL and electroluminescent (EL) reactions by the treatment of oxidants (H2O2 and KMnO4) and by an external potential pulse on the working electrode, respectively. Furthermore, the CL reaction can be speeded up by Fe3+ ion or blood samples. On the other hand, one of the compounds. TTT-Lum, can be polymerized successfully via electrochemically both in 0.1 M LiClO4/acetonitrile containing 5% of borontrifluoro diethylether (BF3-Et2O) and neat BF3-Et2O solution. The corresponding polymer film (PTTT-Lum) bearing CL units has a very stable and a well-defined reversible redox couple. Also, the electrochromic polymer film has a band gap of 1.74 eV and exhibits EL behavior. (C) 2009 Elsevier Ltd. All rights reserved.