Oligo-ortho-chloroazomethinephenol and its metal complexes: Synthesis, characterization, antimicrobial and thermal properties

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dc.contributor.authorMart, H
dc.date.accessioned2019-08-01T13:38:39Z
dc.date.available2019-08-01T13:38:39Z
dc.date.issued2005
dc.departmentNiğde ÖHÜ
dc.description.abstractThe new Schiff base oligomer (oligo-ortho-chloroazomethinephenol) was synthesized by the condensation of ortho-chloroaniline with oligosalicylaldehyde (OSA). Oligomer-metal complexes of oligo-ortho-chloroazomethinephenol (OKAP) with Cu(II), Zn(II) and Co(II) were synthesized. The properties of OKAP and oligomermetal complexes were studied by elemental, UV-Vis, H-1-NMR, FT-IR, magnetic susceptibility analyses. The number average molecular weight and mass average molecular weight OKAP were found to be 1494 g (.) mol(-1) and 5418g (.) mol(-1), respectively. Elemental analyses of oligomer-metal complexes suggest that the ratio of metal to oligomer is 1:2. The results indicate that the OKAP coordinate through azomethine nitrogen and phenolic oxygen to the metal ions. Antimicrobial activity of OKAP was tested against S. cerevisiae, B. subtilis, E. coli, K. pneumoniae, M. luteus and S. aureus. The thermal stabilities of the OKAP and oligomer-metal complexes were compared by ther-mogravimetric (TG) analyses. According to TG, OKAP, and oligomer-metal complexes were stable against temperature and thermooxidative decomposition. The weight losses of OKAP and oligomer-metal complexes were found to be at 400 and 800 degrees C at 20.2 and 50.0 (OKAP), 17.1 and 41.1 (Cu(II)), 13.4 and 38.5 (Zn(II)), 18.3 and 68.2 (Co(II)), %, respectively. Based on half degradation temperature (T-50%) parameters, Cu(II) and Zh(II) complexes were more resistant than the OKAP and Co(H) complex.
dc.identifier.doi10.1080/10601320500189471
dc.identifier.endpage1206
dc.identifier.issn1060-1325
dc.identifier.issue9
dc.identifier.scopus2-s2.0-26444497528
dc.identifier.scopusqualityQ2
dc.identifier.startpage1197
dc.identifier.urihttps://dx.doi.org/10.1080/10601320500189471
dc.identifier.urihttps://hdl.handle.net/11480/5578
dc.identifier.volumeA42
dc.identifier.wosWOS:000232341100006
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthorMart, H
dc.language.isoen
dc.publisherTAYLOR & FRANCIS INC
dc.relation.ispartofJOURNAL OF MACROMOLECULAR SCIENCE-PURE AND APPLIED CHEMISTRY
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectSchiff base oligomer
dc.subjectthermal properties
dc.subjectantimicrobial properties
dc.subjectmetal complexes
dc.titleOligo-ortho-chloroazomethinephenol and its metal complexes: Synthesis, characterization, antimicrobial and thermal properties
dc.typeArticle

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