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Synthesis of Functionalized Polythiophene as a Potenial Organic Semi-Conductor
摘要： The synthesis Poly[1,5-naphthyridine-(3-hexylthiophene)] (PN3HTh) semi-conducting polymer has been accomplished by adopting both conventional and microwave-assisted Suzuki-Miyaura cross-coupling reaction between 3-hexylthiophene-2,5-diboronic ester and 2,6-dibromo-1,5-naphthyridine. The electrochemical and transport properties of PN3HTh were investigated both in the bulk as well as in thin film form. These properties can be further tuned by changing the solvent and the nature of the electrode used. Consequently, cyclic voltammetry (CV) measurements were conducted using a potentiostat coupled with an electrochemical cell. The CV results of PN3HTh as a bulk form in H2SO4 solution indicated that the concentration of the polymer in the solution is not well defined because of polymer poor solubility in aqueous solutions. On the other hand, the sulfur group which works as electron donating makes the system more electron-rich. This can explain by the absence of the reduction peak. For the thin film, two single oxidation peaks were obtained at around 0 V and 0.3 V for both cases. Different solvents can tune the transport properties of the polymer as can be seen from the two CVs where BF3 exhibited enhanced transport properties over ACN. The synthesized polymers were characterized by modern spectroscopic methods including IR and NMR.
关键词： Suzuki-Miyaura cross-coupling,Cyclic Voltammetry,Electrochemical Properties,Organic Semiconductor,Polythiophene
更新于2025-09-11 14:15:04
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Suzuki-Miyaura micellar one pot synthesis of symmetrical and unsymmetrical 4,7-Diaryl-5,6-difluoro-2,1,3-benzothiadiazole luminescent derivatives in water and under air
摘要： The Suzuki-Miyaura cross coupling reaction of 4,7-dibromo-5,6-difluoro-2,1,3-benzothiadiazole (DBBF) with different arylboronic acids can be efficiently carried out in water and under air by means of micellar coupling. The careful tuning of reaction conditions enables preparation of symmetrically and unsymmetrically substituted derivatives. The moderate to good yields obtained, alongside with the wide variety of available substitution patterns, makes this sustainable methodology very resourceful for the preparation of building blocks for luminescent optoelectronic materials.
关键词： optoelectronic materials,sustainable methodology,Suzuki-Miyaura cross coupling,micellar coupling,luminescent derivatives
更新于2025-09-10 09:29:36