Synthesis and Characterization of Cross-linkable Viologen Derivatives

Authors : Şölen AYAŞLIGİL, Sermet KOYUNCU

Pages : 615-623

Doi:10.28979/jarnas.1267768

View : 30 | Download : 193

Publication Date : 2023-09-20

Article Type : Research Paper

Abstract :In this study, crosslinkable allyl functional viologen derivative insert ignore into journalissuearticles values(ALV-Br); was synthesized with 4-4\`biridyl in the presence of allyl bromide in acetonitrile and the precipitated product was separated by filtration. Chemical characterization of the obtained structure was carried out as a result of FT-IR and 1H-NMR spectra. In the cyclic voltammetry insert ignore into journalissuearticles values(CV); measurements performed for electrochemical characterization, a two-step reversible reduction peak attributed to viologen salts was clearly observed in the 0-0.8 V range. According to the UV-Vis absorption spectra, it is seen that they only absorb in the UV region below 400 nm in both solution and thin film. Thin films of ALV-Br salt were then spray coated in the presence of a tetrathiol-based crosslinker insert ignore into journalissuearticles values(pentaerythritol tetrakisinsert ignore into journalissuearticles values(3-mercapto-propionate);.In the final step, the surface morphology of the crosslinked thin film was examined by Atomic force microscopy insert ignore into journalissuearticles values(AFM); and compared with the results of the non-crosslinked one. Finally, the patterned film of ALV-Br could be obtained by this technique.
Keywords : Cross linked film, DFT, surface morphology, thiol ene click chemistry, viologen