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New 1,3,4-thiadiazole compounds including pyrazine moiety: Synthesis, structural properties and antimicrobial features        
Yazarlar
Doç. Dr. Mahmut GÜR
Kastamonu Üniversitesi, Türkiye
Prof. Dr. Nesrin ŞENER
Kastamonu Üniversitesi, Türkiye
Doç. Dr. Halit MUĞLU
Kastamonu Üniversitesi, Türkiye
Doç. Dr. Muhammet Serdar ÇAVUŞ
Kastamonu Üniversitesi, Türkiye
Doç. Dr. Osman Emre ÖZKAN
Kastamonu Üniversitesi, Türkiye
Prof. Dr. Fatma KANDEMİRLİ
Kastamonu Üniversitesi, Türkiye
Prof. Dr. İzzet ŞENER
Kastamonu Üniversitesi, Türkiye
Özet
In the study, some new 1,3,4-thiadiazole compounds were synthesized and we have reported identification of the structures by using UV-Vis, FT-IR, 1H NMR, 13C NMR and Mass spectroscopic methods. Antimicrobial activities of the compounds against three microorganisms, namely, Candida albicans ATCC 26555, Staphylococcus aureus ATCC 9144, and Escherichia coli ATCC 25922 were investigated by using disk diffusion method. These thiadiazoles exhibited an antimicrobial activity against Staphylococcus aureus and Candida albicans. The experimental data was supported by the quantum chemical calculations. Density functional theory (DFT) calculations were carried out to obtain the ground state optimized geometries of the molecules using the B3LYP, M06 and PBE1PBE methods with 3–21 g, 4–31 g, 6–311++g(2d,2p), cc-pvtz and cc-pvqz basis sets in the different combinations. Frontier molecular orbitals (FMOs) energies, band gap energies and some chemical reactivity parameters were calculated by using the aforementioned methods and basis sets, and the results were also compared with the experimental UV-Vis data.
Anahtar Kelimeler
Pyrazine,1,3,4-Thidiazole,Antimicrobial activity,Computational chemistry,DFT
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı Journal of Molecular Structure
Dergi ISSN 0022-2860
Dergi Tarandığı Indeksler SCI
Makale Dili İngilizce
Basım Tarihi 07-2017
Cilt No 1139
Sayfalar 111 / 118
Doi Numarası 10.1016/j.molstruc.2017.03.019
Makale Linki http://linkinghub.elsevier.com/retrieve/pii/S0022286017302806