2026-10-19T00:28:27Zhttps://ebyu-rdlopen.rawdatalibrary.net/oai/requestoai:ebyu-rdlopen.rawdatalibrary.net:ebyu/157232026-10-18T20:41:21Zopenairedrivercom_ebyu_10000col_ebyu_10001Synthesis, crystal structure, spectroscopic, thermal, catechol oxidase and catalase-like studies: New copper(II) complexes of 2-benzoylbenzoate and 2-pyridilpropanol ligandsCaglar, SemaAdigüzel, EkremCaglar, BulentSaykal, TubaSahin, ErtanBüyükgüngör, Orhan2-Benzoylbenzoic acidCatalase activityCatechol oxidationCrystal structureDinuclear copper(II) complexCatalyst activityCatalytic oxidationChelationLigandsPhenolsSynthesis (chemical)Catalase-like activityDinuclear copper complexesHigh substrate concentrationsMonoclinic crystal systemsSquare-pyramidal geometryX-ray crystal structure analysisCopper compoundsTwo novel copper(II) complexes, mononuclear [Cu(bba)2(pypr) 2] 1 and dinuclear [Cu2(bba)2(pypr) 2] 2, have been synthesized by reactions of 2-pyridilpropanol with CuSO4·5H2O or Cu(CH3COO) 2·2H2O metal salt in the presence of 2-benzoylbenzoic acid. The copper(II) ion has a distorted octahedral geometry in 1 and distorted square pyramidal geometry in 2. 1 crystallizes in space group P1̄, while 2 crystallizes in the monoclinic crystal system with the space group P21/n. 2-Benzoylbenzoate behaves as a monodentate in 1, bidentate in 2. 2-pyridilpropanol ligand acts as a bidentate in 1 and bridging in 2. Both complexes were characterized by elemental analysis, mass and IR spectroscopy. Their molecular structures were determined by X-ray crystal structure analysis and their thermal stabilities were confirmed by TG/DTA/DTG techniques. Dinuclear compound shows high catalytic activity regarding the oxidation of 3,5-di-tert-butylcatechol to 3,5-di-tert-butylquinone exhibiting saturation kinetics at high substrate concentrations. In addition, dinuclear compound demonstrates significantly catalase-like activity. But mononuclear complex shows neither catalase-like nor catechol oxidase activity.© 2012 Elsevier B.V. All rights reserved.Elsevier S.A.2013Articlehttps://rdlopen.rawdatalibrary.net/r/ebyu/15723https://doi.org/10.1016/j.ica.2012.11.0280020-1693enInorganica Chimica Actainfo:eu-repo/semantics/openAccessinfo:eu-repo/semantics/articlehttps://ebyu-rdlopen.rawdatalibrary.net/tr/items/ebyu/15723