Furan and benzochalcogenodiazole based multichromic polymers via a donor-acceptor approach


İçli Özkut M. , Ipek H., Karabay B., CİHANER A., ÖNAL A. M.

POLYMER CHEMISTRY, cilt.4, ss.2457-2463, 2013 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 4 Konu: 8
  • Basım Tarihi: 2013
  • Doi Numarası: 10.1039/c3py21061h
  • Dergi Adı: POLYMER CHEMISTRY
  • Sayfa Sayıları: ss.2457-2463

Özet

Two new furan and benzochalcogenodiazole based monomers, namely 4,7-di(furan-2-yl) benzo[c][1,2,5]-selenadiazole (FSeF) and 4,7-di(furan-2-yl) benzo[c][1,2,5]thiadiazole (FSF), were designed and synthesized via a donor-acceptor-donor approach. The monomers were electrochemically polymerized via potentiodynamic or potentiostatic methods. The monomers and their polymers exhibited lower oxidation potentials (1.16 V and 1.06 V for monomers; 0.93 V and 0.80 V for polymers vs. Ag/AgCl) and red shifts of the whole dual-band absorption spectra upon moving from S to Se. Intramolecular charge transfer properties of the monomers and the polymers were demonstrated by using electroanalytical and optical methods. Also, the polymers PFSeF and PFSF were multicolored at different redox states and have low band gaps of 1.43 eV and 1.61 eV, respectively.