Synthesis, characterization, conductivity and thermal degradation of oligo-2-[(4-morpholin-4-yl-phenyl)imino]methylphenol and its oligomer-metal complex compounds

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dc.authoridKaya, İsmet / 0000-0002-9813-2962
dc.authoridÇulhaoğlu, Süleyman / 0009-0004-6466-8541
dc.contributor.authorKaya, İsmet
dc.contributor.authorÇulhaoğlu, Süleyman
dc.contributor.authorGül, Murat
dc.date.accessioned2025-01-27T20:56:15Z
dc.date.available2025-01-27T20:56:15Z
dc.date.issued2006
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractSchiff base oligomer of 2-[(4-morpholin-4-yl-phenyl)imino]methylphenol (2-MPIMP) was synthesized via oxidative polycondensation reaction by using air O-2 and NaOCl oxidants in an alkaline medium between 40 and 90 degrees C. The structure of oligo-2-[(4-morpholin-4-yl-phenyl)imino]methylphenol (O-2-MPIMP) was characterized by using H-1, C-13 NMR, Fr-IR, UV-vis, size exclusion chromatography (SEC) and elemental analysis techniques. At the optimum reaction conditions, the yield of O-2-MPIMP was found to be 73% (for air 02 oxidant) and 97% (for NaOCl oxidant). According to the SEC measurements, the number-average molecular weight (M.), weight-average molecular weight (M-w) and polydispersity index (PDI) values of O-2-MPIMP was found to be 1725, 2030 mol(-1) and 1.177, respectively, using air 02 and 1345, 1490 g mol(-1) and 1.108, using NaOCl, respectively. Oligomer-metal complex compounds were synthesized from the reactions of O-2-MPIMP with Cu2(+), Co2+, Cd2+, Zn2+, Ph2+ and Zr4+ ions. Electrochemical the highest occupied molecular orbital (HOMO), the lowest unoccupied molecular orbital (LUMO) and electrochemical energy gaps (E-g') for 2-MPIMP and O-2-MPIMP were found to be between -5.85 and -5.82, -2.63 and -2.87, 3.22 and 2.95 eV. Also, conductivity values of oligomer and oligomer-metal complex compounds were determined from their solid conductivity measurements. Conductivity measurements of doped and undoped Schiff base oligomer and its metal complexes were carried out by electrometer at room temperature and atmospheric pressure and were calculated from four-point probe technique. When iodine was used as doping agent, conductivity of this oligomer and its metal complexes were observed to be increased. (c) 2006 Elsevier B.V. All rights reserved.
dc.identifier.doi10.1016/j.synthmet.2006.07.008
dc.identifier.endpage1132
dc.identifier.issn0379-6779
dc.identifier.issue16-17
dc.identifier.scopus2-s2.0-33748789640
dc.identifier.scopusqualityQ1
dc.identifier.startpage1123
dc.identifier.urihttps://doi.org/10.1016/j.synthmet.2006.07.008
dc.identifier.urihttps://hdl.handle.net/20.500.12428/26351
dc.identifier.volume156
dc.identifier.wosWOS:000241196900021
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier Science Sa
dc.relation.ispartofSynthetic Metals
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectoligo-2-[(4-morpholin-4-yl-phenyl)imino]methylphenol
dc.subjectthermal analyses
dc.subjectoxidative polycondensation
dc.subjectconductivity
dc.subjectband gap
dc.titleSynthesis, characterization, conductivity and thermal degradation of oligo-2-[(4-morpholin-4-yl-phenyl)imino]methylphenol and its oligomer-metal complex compounds
dc.typeArticle

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