Tuning the electrochemical and optical properties of donor-acceptor D-A2-A1-A2-D derivatives with central benzothiadiazole core by changing the A2 strength

Sandra Pluczyk-Malek, Damian Honisz, Alexander Akkuratov, Pavel Troshin, Mieczyslaw Lapkowski

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

Two molecules named QXBT and BXBT with donor-acceptor D-A2-A1-A2-D type of structure were synthesized and characterized by means of electrochemical (Cyclic and Differential Pulse Voltammetry), spectroscopic and spectroelectrochemical (UV–Vis-NIR, Fluorescence and Electron Paramagnetic Resonance) techniques in order to evaluate the impact of different A2 acceptors on properties of such compounds with benzothiadiazole as A1 central core and alkylthiophene donor moieties. In the case of QXBT, the quinoxaline and in the BXBT molecule the benzoxadiazole serves as a A2 unit. The investigations have revealed that changing the A2 allows to tune the conjugation of molecules and affects not only reduction but oxidation process as well.

Original languageEnglish
Article number137540
JournalElectrochimica Acta
Volume368
DOIs
Publication statusPublished - 1 Feb 2021

Keywords

  • Benzothiadiazole
  • Donor-acceptor system
  • Electrochemistry
  • Spectroelectrochemistry
  • Thiophenes

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