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Four copper(II) diclofenac complexes with pyridine derivatives: Synthesis, crystal structures, spectroscopic properties, thermal analysis and catechol oxidase activitiesCaglar, SemaAydemir, Ismihan E.Adigüzel, EkremCaglar, BulentDemir, SerkanBuyukgungor, OrhanCatechol oxidationCopper(II) complexCrystal structureDiclofenacCatalyst activityCatalytic oxidationPhenolsSpectroscopic analysisSynthesis (chemical)ThermoanalysisX ray crystallographyX raysCopper complexesHigh substrate concentrationsMononuclear complexesPyridine derivativesSpectroscopic propertyX ray structure analysisCopper compoundsFour novel mononuclear copper(II) complexes [Cu(dicl)2(2-pic) 2] 1, [Cu(dicl)2(3-pic)2] 2, [Cu(dicl) 2(4-pic)2] 3 and [Cu(dicl)2(2-ampy) 2] 4 have been synthesized. The crystal structures of the complexes 2 and 3 have been determined by X-ray crystallography. X-ray structure analysis has shown that copper(II) ions have distorted octahedral geometry in 2 and 3 and diclofenac coordinates to Cu(II) ion as a deprotonated ligand through carboxylato oxygens. Four complexes have been characterized by elemental analysis and IR spectroscopy. Their thermal stabilities have been determined by TG/DTA/DTG techniques. Four mononuclear complexes have shown catalytic activity on the oxidation of 3,5-di-tert-butylcatechol to 3,5-di-tert-butylquinone exhibiting saturation kinetics at high substrate concentrations. © 2013 Elsevier B.V. All rights reserved.Elsevier S.A.2013Articlehttps://rdlopen.rawdatalibrary.net/r/ebyu/15870https://doi.org/10.1016/j.ica.2013.09.0130020-1693enInorganica Chimica Actainfo:eu-repo/semantics/openAccessinfo:eu-repo/semantics/articlehttps://ebyu-rdlopen.rawdatalibrary.net/tr/items/ebyu/15870