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Altering Electronic and Optical Properties of Novel Benzothiadiazole Comprising Homopolymers via pi Bridges
Date
2021-03-01
Author
Zeytun Karaman, Cansu
Goeker, Seza
Hacioglu, Serife O.
Haciefendioglu, Tugba
Yıldırım, Erol
Toppare, Levent Kamil
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Four novel benzo[c][1,2,5]thiadiazole comprising monomers namely 5-fluoro-6-((2-octyldodecyl)oxy)-4,7-di(thiophen-2-yl)benzo[c][1,2,5]thiadiazole (TBTT), 5-fluoro-4,7-bis(4-hexylthiophen-2-yl)-6-((2-octyldodecyl)oxy)benzo[c][1,2,5]thiadiazole (HTBTHT), 5-fluoro-4,7-di(furan-2-yl)-6-((2-octyldodecyl)oxy)benzo- [c][1,2,5]thiadiazole (FBTF), and 5-fluoro-6-((2-octyldodecyl)oxy)-4,7-bis(thieno[3,2-b]thiophen-2-yl)benzo[c][1,2,5]thiadiazole (TTBTTT) were designed, and synthesized successfully via Stille polycondensation reaction. The structural characterizations of the monomers were performed by H-1 and C-13 NMR spectroscopy and High Resolution Mass Spectroscopy (HRMS). The monomers were then electropolymerized in a three electrode cell system via cyclic voltammetry. The electrochemical, and spectroelectrochemical characterization of the polymers were reported in detail. Besides, theoretical calculations were performed to elucidate observed experimental properties. According to the cyclic voltammogram of the polymers, HOMO and LUMO energy levels were calculated as -5.68 eV/-3.91 eV, -5.71 eV/-3.72 eV, -5.61 eV/-4.04 eV, and -5.51 eV/-3.71 eV and the electronic band gaps were 1.77 eV, 1.99 eV, 1.57 eV, and 1.80 eV for PTBTT, PHTBTHT, PFBTF, and PTTBTTT, respectively.
URI
https://iopscience.iop.org/article/10.1149/1945-7111/abedc5
https://hdl.handle.net/11511/89537
Journal
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
DOI
https://doi.org/10.1149/1945-7111/abedc5
Collections
Department of Chemistry, Article
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Altering Electronic and Optical Properties of Novel Benzothiadiazole Comprising Homopolymers via π Bridges
Zeytun Karaman, Cansu; Göker, Seza; Özdemir Hacıoğlu, Şerife; Hacıefendioğlu, Tuğba; Yıldırım, Erol; Toppare, Levent Kamil (2021-03-01)
Four novel benzo[c][1,2,5]thiadiazole comprising monomers namely 5-fluoro-6-((2-octyldodecyl)oxy)-4,7-di(thiophen-2-yl)benzo[c][1,2,5]thiadiazole (TBTT), 5-fluoro-4,7-bis(4-hexylthiophen-2-yl)-6-((2-octyldodecyl)oxy)benzo[c][1,2,5]thiadiazole (HTBTHT),5-fluoro-4,7-di(furan-2-yl)-6-((2-octyldodecyl)oxy)benzo- [c][1,2,5]thiadiazole (FBTF), and 5-fluoro-6-((2-octyldodecyl)oxy)-4,7-bis(thieno[3,2-b]thiophen-2-yl)benzo[c][1,2,5]thiadiazole (TTBTTT) were designed, and synthesized successfully via Stille polyconde...
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C. Zeytun Karaman, S. Goeker, S. O. Hacioglu, T. Haciefendioglu, E. Yıldırım, and L. K. Toppare, “Altering Electronic and Optical Properties of Novel Benzothiadiazole Comprising Homopolymers via pi Bridges,”
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
, pp. 0–0, 2021, Accessed: 00, 2021. [Online]. Available: https://iopscience.iop.org/article/10.1149/1945-7111/abedc5.