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Naz Mohammed Aghatabay Yaghub Mahmiani Hüseyin Çevik Fahrettin Gucin Basaran Dulger 《Structural chemistry》2008,19(5):833-842
Series of new mixed aza-oxo-thia macrocyclic ligands {2,6,12,16-tetraaza-1,7,11,17-tetraoxo-9,19-dithia-[(4′-methyl-5′,4,3′)(14′-methyl-15′,14,13′)]ditriazine}cyclocosane
(L
1
); {2,6,13,17-teraaza-1,7,12,18-tetraoxo-9,10,20,21-tetrathia-[(4′-methyl-5′,4,3′)(15′-methyl-14′,16′,15)]di-triazine}cyclodocosane
(L
2
); {2,6,14,18-tetraaza-1,7,13,19-tetraoxo-10,22-dithia-[(4′-methyl-5′,3′,4)(16′-methyl-15′,17′,16)]ditriazine}cyclotetracosane
(L
3
) and {2,6,15,19-tetraaza-1,7,14,12-tetraoxo-10,11,23,24-tetrathia-[(4′-methyl-5′,4,3′)(17′-methyl-8′,17,16′)]ditriazine}cyclohexa-cosane
(L
4
) were synthesized. The structural features of the compounds have been studied by elemental analyses, Mass, FT-Raman, FT-IR,
1H and 13C NMR spectroscopy. The antimicrobial activities of the ligands were evaluated using disk diffusion method in dimethyl sulfoxide
as well as the minimal inhibitory concentration (MIC) dilution method, against 9 bacteria. The obtained results from disk
diffusion method were assessed in side-by-side comparison with those of Penicillin-g, Ampicillin, Cefotaxime, Vancomycin,
Oflaxacin, and Tetracyclin, well-known antibacterial agents. The results from dilution procedure were compared with Gentamycin
as antibacterial and Nystatin as antifungal. The antifungal activities are reported on five yeast cultures namely Candida albicans, Kluyveromyces fragilis, Rhodotorula rubra, Debaryomyces hansenii, and Hanseniaspora guilliermondii, and the results are referenced with Nystatin, Ketaconazole, and Clotrimazole, commercial antifungal agents. In most cases,
the compounds show strong antifungal activity in the comparison tests. 相似文献
2.
In this paper it is proved that the group 2 D n (2), where n=2 m +1≥5, can be uniquely determined by its order components. More precisely we will prove that if G is a finite group and OC(G) denotes the set of order components of G, then OC(G)=OC(2 D n (2)) if and only if G ? 2 D n (2). A main consequence of our result is the validity of Thompson’s conjecture for the group under consideration. 相似文献
3.
Naz Mohammed Aghatabay Metin Tulu Yaghub Mahmiani Mehmet Somer Basaran Dulger 《Structural chemistry》2008,19(1):71-80
1,6-Bis(benzimidaz-2-yl)-3,4-dithiahexane ligand (L) and its mercury halide complexes were prepared and characterised. The
elemental analysis, molecular conductivity, FT-Raman, FT-IR (mid, far), 1H, 13C NMR and geometry optimization in MOPAC using MNDOd parameter on CACHE, prove the existence of neutral, mononuclear and the
distorted tetrahedral [Hg(L)X2] complexes. In all the three complexes, the ligand acts as a chelating bidentate, through two of the bridging sulphur atoms
and together with the monodentate coordination of the two anionic halide ligands to the metal centre forming a possible 4-coordinate
compounds. The antimicrobial activities of free ligand, its hydrochlorinated salt, mercury halides and the complexes are evaluated
using disk diffusion method in dimethyl sulfoxide (DMSO) as well as the minimal inhibitory concentration (MIC) dilution method,
against 10 bacteria. The obtained results from disk diffusion method are assessed in side-by-side comparison with those of
Penicillin-g, Ampicillin, Cefotaxime, Vancomycin, Oflaxacin and Tetracyclin well-known antibacterial agents. The results from
dilution procedure are compared with Gentamycin as antibacterial and Nystatin as antifungal. The antifungal activities are
reported on five yeast cultures namely Candida albicans, Kluyveromyces fragilis, Rhodotorula rubra, Debaryomyces hansenii and Hanseniaspora guilliermondii, and the results are referenced with Nystatin, Ketaconazole and Clotrimazole, commercial antifungal agents. In most cases,
the compounds show broad-spectrum (Gram+ & Gram− bacteria) activities that are comparatively, slightly less active or equipotent to the antibiotic and antifungal agents in
the comparison tests. 相似文献
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