Novel 2,6-dimethoxyphenoxy alpha substituted phthalocyaninato metal complexes: Electrochemistry, In situ spectroelectrochemistry and oxygen electrocatalysis

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dc.authoridOrman, Efe Baturhan/0000-0002-8441-4061
dc.authoridPiskin, Mehmet/0000-0002-4572-4905
dc.contributor.authorOrman, Efe Baturhan
dc.contributor.authorYazar, Zuhal
dc.contributor.authorPiskin, Mehmet
dc.contributor.authorOdabas, Zafer
dc.contributor.authorOzkaya, Ali Riza
dc.date.accessioned2025-01-27T20:43:54Z
dc.date.available2025-01-27T20:43:54Z
dc.date.issued2022
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractNon-peripherally tetra-2,6-dimethoxyphenoxy substituted Co(II) 3, Fe(II) 4, Mn(III) 5, and Ni(II) 6 phthalocyanines were prepared by refluxing the n-pentanol solution of their metal-free analogue H2Pc 2, (obtained by using 3-(2,6-dimethoxyphenoxy)phthalonitrile), metal salts (Co(CH3COO)2.4 H2O, Fe(CH3COO)2, Mn (CH3COO)2.4 H2O or NiCl2) and 1,8-diazabicyclo[5.4.0]undec-7-ene(DBU) as the catalyst under N2 atmosphere for 2 h. The molecular structure of metallophthalocyanines 3-6 were explained by common methods which are elemental analysis, MALDI-TOF mass, FTIR, and UV-Vis spectroscopies. The complexes are well dissolved in various solvents (dichloromethane, tetrahydrofuran, dimethylsulfoxide, dimethylformamide, and toluene. Electrochemical redox, electrocatalytic oxygen reducing and electrocolorimetric properties of the phthalocyanine complexes were also measured by voltammetric and in situ UV-Vis spectroelectrochemical techniques. The phthalocyanine complexes displayed highly reversible sequential one-electron redox processes occurring at metal and/or phthalocyanine ring. The association of these processes with net colour changes pointed out their functionality as electrochromic material. Furthermore, the phthalocyanine complexes 3-5 and especially Fe(II)Pc 4, showed striking electrocatalytic oxygen reducing activity, owing to the metal centres with redox activity, increasing their interplay with the O2 molecule.
dc.description.sponsorshipScientific Research Projects Committee of Marmara University (BAPKO) [FEN-C-YLP-080715-0345]; Canakkale Onsekiz Mart University Scientific Research Projects Unit [FBA-2018-1225]; Turkish Academy of Sciences (TUBA)
dc.description.sponsorshipThe authors are gratefully to Scientific Research Projects Committee of Marmara University (BAPKO Project Number: FEN-C-YLP-080715- 0345) and Canakkale Onsekiz Mart University Scientific Research Projects Unit (BAP Project Number: FBA-2018-1225) One of the authors, Ali Riza Ozkaya also thanks Turkish Academy of Sciences (TUBA) for partial financial support to this study.
dc.identifier.doi10.1016/j.synthmet.2022.117139
dc.identifier.issn0379-6779
dc.identifier.scopus2-s2.0-85134606444
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.synthmet.2022.117139
dc.identifier.urihttps://hdl.handle.net/20.500.12428/24416
dc.identifier.volume290
dc.identifier.wosWOS:000830838400002
dc.identifier.wosqualityQ2
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.subjectPhthalocyanine
dc.subjectAggregation
dc.subjectDimethoxyphenoxy
dc.subjectElectrochemistry
dc.subjectElectrocatalysis
dc.subjectOxygen reduction
dc.titleNovel 2,6-dimethoxyphenoxy alpha substituted phthalocyaninato metal complexes: Electrochemistry, In situ spectroelectrochemistry and oxygen electrocatalysis
dc.typeArticle

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