An investigation of the enzymatic oligomerization of nitro-substituted phenylene diamine: Thermal and fluorescence properties

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dc.contributor.authorKolcu, Feyza
dc.date.accessioned2025-01-27T19:37:20Z
dc.date.available2025-01-27T19:37:20Z
dc.date.issued2024
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstract2-nitro-p-phenylenediamine, an aromatic diamine, was studied for its oxidative oligomerization with H2O2 using enzyme-catalyzed oligomer synthesis. Characterization of molecular structures was performed utilizing ultraviolet-visible (UV-Vis) spectrophotometer, Fourier-transform infrared spectroscopy (FT-IR), and nuclear magnetic resonance (NMR) techniques, identifying phenazine-bridged oligomer resulting from the enzymatic oligomerization process. Based on the results of gel permeation chromatography (GPC) analysis, the synthesized compound was identified as being in an oligomeric form. Conversely, the number of repeating units, as determined by Mw, was found to be 28. The solvent effect on the optical features of the synthesized oligomer in polar solvents was analyzed. The degradation of phenazine-type structures in the oligomer occurred at higher temperatures than that of the monomer. Under visible light excitation, the oligomer exhibited green light emission with a quantum yield (QY) of 6.2% in N,N-dimethylformamide (DMF). 2-nitro-p-phenylenediamine was readily oxidized into an oligomer with ortho-coupled constitutional units, having a lower electrochemical band gap than the monomer, via the enzymatic oligomerization route. Scanning electron microscopy revealed that enzyme-catalyzed oxidation of monomers exhibited a spongy morphology with some pores
dc.identifier.doi10.54187/jnrs.1527152
dc.identifier.endpage164
dc.identifier.issn1304-7981
dc.identifier.issue2
dc.identifier.startpage153
dc.identifier.trdizinid1260196
dc.identifier.urihttps://doi.org/10.54187/jnrs.1527152
dc.identifier.urihttps://search.trdizin.gov.tr/tr/yayin/detay/1260196
dc.identifier.urihttps://hdl.handle.net/20.500.12428/17196
dc.identifier.volume13
dc.indekslendigikaynakTR-Dizin
dc.language.isoen
dc.relation.ispartofJournal of New Results in Science
dc.relation.publicationcategoryMakale - Ulusal Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_TRD_20250125
dc.subjectHorseradish peroxidase
dc.subjectLimiting oxygen index
dc.subjectp-phenylenediamine
dc.subjectEnzyme-catalyzed oligomerization
dc.subjectGreen photoluminescence emission
dc.titleAn investigation of the enzymatic oligomerization of nitro-substituted phenylene diamine: Thermal and fluorescence properties
dc.typeArticle

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