Imidazole octasubstituted novel mono and double-decker phthalocyanines: Synthesis, characterization, electrical and gas sensing properties

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dc.authoridYabas, Ebru/0000-0001-7163-3057
dc.authoridDumludag, Fatih/0000-0003-3394-692X
dc.authorwosidDumludağ, Fatih/IWV-3612-2023
dc.authorwosidYABAŞ, EBRU/AAH-4372-2019
dc.authorwosidSÜLÜ, Mustafa/ABH-5282-2020
dc.authorwosidSalih, Bekir/IWD-6549-2023
dc.authorwosidBekaroğlu, Özer ---/N-9731-2013
dc.contributor.authorYabas, Ebru
dc.contributor.authorSulu, Mustafa
dc.contributor.authorDumludag, Fatih
dc.contributor.authorSalih, B.
dc.contributor.authorBekaroglu, Ozer
dc.date.accessioned2024-08-04T20:44:39Z
dc.date.available2024-08-04T20:44:39Z
dc.date.issued2018
dc.departmentİnönü Üniversitesien_US
dc.description.abstractImidazole disubstituted phthalonitrile (1) was prepared by the reaction of 4,5-dichlorophthalonitrile with 4,5-diphenyl-1H-imidazolethiole. Imidazole octasubstituted metal free (2), zinc(II) (3), cobalt(II) (4) monophthalocyanines and lutetium(III) (5) and europium(III) (6) double-decker phthalocyanines were prepared by cyclotetramerization of compound 1. The new compounds were characterized by H-1 NMR, C-13 NMR, UV-vis, IR, MALDI-TOF mass, ESR spectra and elemental analysis. Dc and ac conductivity and gas sensing properties (at room temperature) of the compounds of 2-6 were studied between the temperatures of 295-523 K. Ac conductivity values of the films were measured in the frequency region of 40 Hz-100 kHz. The films were tested for the vapors of toluene, ethanol, THF, n-hexane, chloroform and xylene. DC conductivity results revealed that the compounds 2-6 show a semiconductor behavior. Results of ac measurements show dominant conduction mechanism can be modeled depending on temperature and frequency. The best sensitivity values were obtained for the xylene vapors. The sensor 3 showed best sensitivity among the other sensors for xylene vapor. Response times of the sensors were also determined. (C) 2018 Elsevier Ltd. All rights reserved.en_US
dc.description.sponsorshipScientific and Technical Research Council of Turkey (TUBITAK) [108 T140]; Scientific Research Council of Marmara University (BAPKO) the Commission of Scientific Research Projects [FEN-A-130711-0258]; Turkish Academy of Sciences (TUBA)en_US
dc.description.sponsorshipThe authors gratefully acknowledge the financial support by Scientific and Technical Research Council of Turkey (TUBITAK, Project No: 108 T140) and by The Scientific Research Council of Marmara University (BAPKO) the Commission of Scientific Research Projects (Project No: FEN-A-130711-0258) and partially supporting by Turkish Academy of Sciences (TUBA).en_US
dc.identifier.doi10.1016/j.poly.2018.06.044
dc.identifier.endpage63en_US
dc.identifier.issn0277-5387
dc.identifier.scopus2-s2.0-85049835301en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage51en_US
dc.identifier.urihttps://doi.org/10.1016/j.poly.2018.06.044
dc.identifier.urihttps://hdl.handle.net/11616/98381
dc.identifier.volume153en_US
dc.identifier.wosWOS:000444358300005en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherPergamon-Elsevier Science Ltden_US
dc.relation.ispartofPolyhedronen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectOctasubstituted phthalocyaninesen_US
dc.subjectImidazoleen_US
dc.subjectGas sensoren_US
dc.subjectConductivityen_US
dc.subjectVOCen_US
dc.titleImidazole octasubstituted novel mono and double-decker phthalocyanines: Synthesis, characterization, electrical and gas sensing propertiesen_US
dc.typeArticleen_US

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