Probing the effect of arm length and inter- and intramolecular interactions in the formation of Cu(II) complexes of Schiff base ligands derived from some unsymmetrical tripodal amines

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dc.authoridOzcelik, Nefise -- 0000-0002-6972-1071; keypour, Hassan -- 0000-0001-9973-241X; Maleki, Farahnaz -- 0000-0002-5747-1319; Salehzadeh, Sadegh -- 0000-0003-2840-1896
dc.contributor.authorKeypour, Hassan
dc.contributor.authorShayesteh, Maryam
dc.contributor.authorSalehzadeh, Sadegh
dc.contributor.authorDhers, Sebastien
dc.contributor.authorMaleki, Farahnaz
dc.contributor.authorUnver, Huseyin
dc.contributor.authorDilek, Nefise
dc.date.accessioned13.07.201910:50:10
dc.date.accessioned2019-07-29T19:30:25Z
dc.date.available13.07.201910:50:10
dc.date.available2019-07-29T19:30:25Z
dc.date.issued2015
dc.department[Keypour, Hassan -- Shayesteh, Maryam -- Salehzadeh, Sadegh -- Maleki, Farahnaz] Bu Ali Sina Univ, Fac Chem, Hamadan 65174, Iran -- [Dhers, Sebastien] Univ Otago, Dept Chem, Dunedin 9054, New Zealand -- [Dhers, Sebastien] Univ Otago, MacDiarmid Inst Adv Mat & Nanotechnol, Dunedin 9054, New Zealand -- [Unver, Huseyin] Ankara Univ, Fac Sci, Dept Phys, TR-06100 Ankara, Turkey -- [Dilek, Nefise] Aksaray Univ, Dept Phys, Arts & Sci Fac, TR-68100 Aksaray, Turkey
dc.description.abstractThe syntheses of two previously known, 2-((2-aminoethyl)(pyridin-2-ylmethyl) amino) ethanol (1) and 2-((3-aminopropyl)(pyridin-2-ylmethyl) amino) ethanol (2), and four new unsymmetrical N-capped tripodal amines, 2-((4-aminobutyl)(pyridin-2-ylmethyl) amino) ethanol (3), 3-((2-aminoethyl)(pyridin-2-ylmethyl)amino)-propan-1-ol (4), 3-((3-aminopropyl)(pyridin-2-ylmethyl) amino) propan-1-ol (5) and 3-((4-aminobutyl)(pyridin-2-ylmethyl) amino) propan-1-ol (6), are reported. The ligands (3-4) feature a longer arm, 3-hydroxypropyl or butylamino, than in the analogues previously employed (2-hydroxyethyl arm, ethylamino-arm or propylamino-arm in 1 and 2). All six tripodal amines, 1-6, are equipped with a 2-methylpyridyl-arm and either an ethylamino-arm (1 and 4), propylamino-arm (2 and 5) or butylamino-arm (3 and 6). The new amines, 3-6, have been employed in one pot condensation reactions with 2-hydroxy-1-naphthaldehyde and salicylaldehyde (and its derivatives) in the presence of Cu(II) metal ions to generate a series of new mononuclear complexes, [(MLaldi)-L-parallel to](ClO4) as well as new dinuclear complexes [(CuLaldi)-L-parallel to](2)(ClO4)(2) of new ligands L-aldi. Four monomeric complexes and one dimeric complex have been characterised by single crystal X-ray diffraction, revealing a distorted square-pyramidal copper(II) ion. A general comparison between these structures shows that the number and types of chelate ring sequences around the metal ions are important in the formation of structures. Theoretical studies show that the 3-hydroxypropyl arm in these complexes is a weak coordinating group and it can readily be removed from the coordination sphere of metal ions, resulting in a dimerised four coordinate complex. Calculations show that the interaction between the two monomeric fragments is very weak.
dc.description.sponsorshipFaculty of Chemistry of Bu-Ali Sina University; Ministry of Science, Research and Technology of Iran; University of Otago; MacDiarmid Institute for Advanced Materials and Nanotechnology
dc.description.sponsorshipWe are grateful to the Faculty of Chemistry of Bu-Ali Sina University, Ministry of Science, Research and Technology of Iran, the University of Otago and the MacDiarmid Institute for Advanced Materials and Nanotechnology for financial support (PhD scholarship for SD), and Professor Sally Brooker for hosting MS for a 6-month research visit.
dc.identifier.doi10.1039/c5nj01318f
dc.identifier.endpage7441en_US
dc.identifier.issn1144-0546
dc.identifier.issn1369-9261
dc.identifier.issue9en_US
dc.identifier.scopusqualityQ2
dc.identifier.startpage7429en_US
dc.identifier.urihttps://doi.org/10.1039/c5nj01318f
dc.identifier.urihttps://hdl.handle.net/20.500.12451/6273
dc.identifier.volume39en_US
dc.identifier.wosWOS:000360650900092
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherROYAL SOC CHEMISTRY
dc.relation.ispartofNEW JOURNAL OF CHEMISTRY
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.titleProbing the effect of arm length and inter- and intramolecular interactions in the formation of Cu(II) complexes of Schiff base ligands derived from some unsymmetrical tripodal amines
dc.typeArticle

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