Synthesis and characterization of new crown ethers of Schiff base type and their complexes

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dc.authoridDulger, Basaran/0000-0002-3184-2652
dc.contributor.authorYildiz, M
dc.contributor.authorDülger, B
dc.contributor.authorÇinar, A
dc.date.accessioned2025-01-27T20:44:24Z
dc.date.available2025-01-27T20:44:24Z
dc.date.issued2005
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractNew crown ether ligands of Schiff base type (4-11) have been synthesised by the reaction of two equivalents, of benzaldehyde, 2-hydroxybenzaldehyde, 2,3-dihydroxybenzaldehyde, 5-methoxy-2-hydroxybenzaldehyde, 5-bromo-2-hydroxybenzaldehyde, 5-nitro-2-hydroxybenzaldehyde, 4-hydroxybenzaldehyde or 2-hydroxy-l-naphthaldehyde with 2,3,5,6-di[4-aminobenzo]-1,7,10,13-tetraoxacyclopentadeca-2,5-dien (3). The ligand 2,3,5,6 -di[4-N-(salicylidene)benzo]-1,7,10,13-tetraoxacyclopentadeca-2,5-dien (5) (5) reacts with Mn-II, Fe-II, Co-II, Ni-II, Cu-II and Zn-II to yield 1 : 1 metal-ligand complexes. The structures of ligands and complexes have been investigated by elemental analysis, IR, UV-visible, (1)(H) NMR and C-13 NMR data. The tetradentate nature of the ligands is inferred from IR spectra. The UV-visible spectral data suggest octahedral geometry for metal complexes. The antimicrobial activities and yeast cultures of the ligands and metal complexes have been screened in vitro against the organisms Escherichia coli ATCC 11230, Staphylococcus aureus ATCC 6538 P, Bacillus cereus ATCC 7064, Proteus vulgaris ATCC 8427, Salmonella typhimurium DSM 554, Corynebacterium xerosis ATCC 373 and Hanseniaspora guilliermondii DSM 3432, Rhodotorula rubra DSM 70403 and Kluyveromyces fragilis ATCC 8608. The metal complexes are more fungitoxic than the free ligand.
dc.identifier.endpage420
dc.identifier.issn0019-4522
dc.identifier.issue5
dc.identifier.scopus2-s2.0-20644446279
dc.identifier.scopusqualityQ3
dc.identifier.startpage414
dc.identifier.urihttps://hdl.handle.net/20.500.12428/24556
dc.identifier.volume82
dc.identifier.wosWOS:000229869100007
dc.identifier.wosqualityQ4
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherIndian Chemical Soc
dc.relation.ispartofJournal of The Indian Chemical Society
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectMetal Guest Cations
dc.subjectRecognition Sites
dc.subjectPolyethers
dc.subjectAlkali
dc.titleSynthesis and characterization of new crown ethers of Schiff base type and their complexes
dc.typeArticle

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