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Journals / Black Sea Journal of Engineering and Science / 2025 / Cilt: 8 Sayı: 6

Synthesis and Characterization of Thiophene Cyclic Schiff Base Ligand and Metal Ion Complexes

Ali Çapan(Gaziantep Üniversitesi NMYO Gıda teknolojisi Programı)0000-0002-6477-6604
Abdülhamid Elhac Hasan0009-0003-3679-3567
Mehmet Sönmez(GAZIANTEP UNIVERSITY, FACULTY OF ARTS AND SCIENCES)0000-0003-3127-666X
Pages
1864–1873
Publication Date
2025-11-15
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Moreover, the molar conductivities of the complexes were found to be in the range of 1.5–2.9 μS•cm⁻¹, indicating their non-electrolytic nature.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:In this study, a new Schiff base ligand (L) containing a thiophene ring was synthesized via the reaction of thiophene-2,5-dicarbaldehyde with 5-amino-1,3,4-thiadiazole-2-thiol.
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Key Findings & Data:The ligand (L) reacted with metal acetate salts [M(CH₃COO)₂; M = Cu, Co, Ni] in a 1:1 molar ratio to form metal complexes with the general formula [ML(CH₃COO)₂]•nH₂O (n = 2, 3).
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Conclusion & Impact:Moreover, the molar conductivities of the complexes were found to be in the range of 1.5–2.9 μS•cm⁻¹, indicating their non-electrolytic nature.
🔬Design:Araştırma Makalesi
📍Scope:Comprehensive Sample
⚙️Variables:Thiophene · Thiadiazole · Schiff base

Abstract

In this study, a new Schiff base ligand (L) containing a thiophene ring was synthesized via the reaction of thiophene-2,5-dicarbaldehyde with 5-amino-1,3,4-thiadiazole-2-thiol. The structure of the ligand was elucidated using elemental analysis, FT-IR, NMR, and UV-Vis spectroscopy. The ligand (L) reacted with metal acetate salts [M(CH₃COO)₂; M = Cu, Co, Ni] in a 1:1 molar ratio to form metal complexes with the general formula [ML(CH₃COO)₂]•nH₂O (n = 2, 3). Structural characterization of the metal complexes was performed using elemental analysis, FT-IR, UV-Vis, TGA/DTA, electrolytic conductivity, and magnetic susceptibility measurements. Based on the obtained data, it was proposed that the Cu(II), Co(II), and Ni(II) complexes adopt a tetrahedral geometry. Moreover, the molar conductivities of the complexes were found to be in the range of 1.5–2.9 μS•cm⁻¹, indicating their non-electrolytic nature.

Özet

In this study, a new Schiff base ligand (L) containing a thiophene ring was synthesized via the reaction of thiophene-2,5-dicarbaldehyde with 5-amino-1,3,4-thiadiazole-2-thiol. The structure of the ligand was elucidated using elemental analysis, FT-IR, NMR, and UV-Vis spectroscopy. The ligand (L) reacted with metal acetate salts [M(CH₃COO)₂; M = Cu, Co, Ni] in a 1:1 molar ratio to form metal complexes with the general formula [ML(CH₃COO)₂]•nH₂O (n = 2, 3). Structural characterization of the metal complexes was performed using elemental analysis, FT-IR, UV-Vis, TGA/DTA, electrolytic conductivity, and magnetic susceptibility measurements. Based on the obtained data, it was proposed that the Cu(II), Co(II), and Ni(II) complexes adopt a tetrahedral geometry. Moreover, the molar conductivities of the complexes were found to be in the range of 1.5–2.9 μS•cm⁻¹, indicating their non-electrolytic nature.

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Cite This Article

Çapan, A., Hasan, A. E., Sönmez, M. (2025). Synthesis and Characterization of Thiophene Cyclic Schiff Base Ligand and Metal Ion Complexes. Black Sea Journal of Engineering and Science, Cilt: 8 Sayı: 6, 1864–1873. https://doi.org/10.34248/bsengineering.1725400

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