2,6-bis-benzimidazolpiridin Esaslı Çinko(II) Kompleksinin Sentezi, Karakterizasyonu ve Elektrokimyasal Özelliklerinin İncelenmesi

Bu çalışmada, üç-dişli bis-benzimidazol piridin türevi ligant (L) ve bu ligantın nötr Zn(II) kompleksi [ZnLCl2] sentezlendi. Elde edilen bu yeni koordinasyon bileşiğinin yapısı aydınlatılarak, elektrokimyasal özellikleri araştırıldı. Moleküllerin yapısal karakterizasyonunda çeşitli spektroskopik yöntemler (FT-IR, 1H NMR, 13C NMR, MALDI-TOF-MS, UV-Vis gibi) kullanıldı. Elektrokimyasal özellikleri ise DMF içerisinde dönüşümlü voltametri (CV) tekniği ve kare dalga voltametrisi kullanılarak araştırıldı. Tarama hızı ve pik akımı arasındaki ilişki kullanılarak kompleksin elektrokimyasal mekanizması aydınlatılmış, kompleksin yarı-tersinir ve difüzyon kontrollü bir davranış sergilediği ortaya konulmuştur. Bu nedenle, kompleksin özellikle de redoks akışlı piller, güneş pilleri ve elektrokataliz gibi alanlarda uygulanabileceği düşünülmektedir.

Anahtar Kelimeler:

Çinko(II), Bis-benzimidazol, Üç-dişli ligant, Elektrokimya

Synthesis, Characterization and Investigation of Electrochemical Properties of Zinc(II) Complex Based on 2,6-bis-benzimidazolepyridine

In this study, tridendate bis-benzimidazole pyridine derivative ligand and its neutral Zn(II) complex [ZnLCl2] were synthesized. The structure of this novel coordination compound obtained was elucidated and its electrochemical properties were investigated. In the structural characterization of the compounds were used various spectroscopic methods (such as FT-IR, 1H-NMR, 13C-NMR, MALDI-TOF-MS, UV-Vis). Its electrochemical properties were investigated in DMF using cyclic voltammetry (CV) technique. The obtained results showed that the complex exhibits quasi-reversible redox potential. Its electrochemical properties were investigated using cyclic voltammetry (CV) technique and square wave voltammetry in DMF. Using the relationship between the scanning rate and the peak current, the electrochemical mechanism of the complex was elucidated and it was lay out shown that the complex exhibits a quasi-reversible and diffusion-controlled behavior. Therefore, it is thought that the complex can be applied especially in fields such as redox flow cells, solar cells, and electrocatalysis.

Keywords:

Zinc(II), Bis-benzimidazole, Tridentate ligand, Electrochemistry,

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