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Experimental and theoretical studies on methanesulfonic acid 1 methylhydrazide Antimicrobial activities of its sulfonyl hydrazone derivatives      
Yazarlar
Prof. Dr. Neslihan ÖZBEK Prof. Dr. Neslihan ÖZBEK
Ahi Evran Üniversitesi, Türkiye
Alyar Saliha
Nurcan Karacan
Gazi Üniversitesi, Türkiye
Özet
Methanesulfonic acid 1-methylhydrazide (msmh) and its sulfonyl hydrazone derivatives, salicylaldehyde-N-methylmethanesulfonylhydrazone (salmsmh) and 2-hydroxy-1-naphthaldehyde-N-methylmethanesulfonylhydrazone (nafmsmh) were synthesized and characterized by using FT-IR, 1H NMR, 13C NMR, LC-MS and elemental analysis. Conformation analysis of msmh based on DFT/B3LYP/6-311G(d) method was performed. 1H and 13C shielding tensors of msmh for the most stable conformer were calculated with GIAO/DFT/B3LYP/6-311++G(2d, 2p) methods in vacuo and various solvents such as DMSO, THF, acetonitrile, methanol and aqueous solution. The harmonic vibrational wavenumbers for the most stable conformer were calculated using at B3LYP/6-311G(d) level. Antimicrobial activity of the compounds was also screened against Gram-positive bacteria (Staphylococcus aureus ATCC 25923, Bacillus cereus RSKK 863) and Gram-negative bacteria (Escherichia coli ATCC 11230, Salmonella enterititis ATCC 40376, Pseudomonos aeruginosa ATCC 28753) by both disc diffusion and micro dilution methods. © 2009 Elsevier B.V. All rights reserved.
Anahtar Kelimeler
Antimicrobial activity | DFT | NMR spectra | Sulfonyl hydrazide | Sulfonyl hydrazone
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 12-2009
Cilt No 938
Sayı 1
Sayfalar 48 / 53
Doi Numarası 10.1016/j.molstruc.2009.09.002
Makale Linki http://linkinghub.elsevier.com/retrieve/pii/S0022286009005663