Μελέτη της αντίδρασης φωτοοξείδωσης του ακετυλενίου στην περιοχή των 280-325 nm

dc.contributor.authorΠαπιγκιώτης, Ηρακλής Μάριοςel
dc.contributor.authorPapigkiotis, Iraklis Mariosen
dc.date.accessioned2023-10-19T05:57:39Z
dc.date.available2023-10-19T05:57:39Z
dc.identifier.urihttps://olympias.lib.uoi.gr/jspui/handle/123456789/33132
dc.identifier.urihttp://dx.doi.org/10.26268/heal.uoi.12888
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 United States*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/us/*
dc.subjectΦωτοοξείδωσηel
dc.subjectPhotooxidationen
dc.titleΜελέτη της αντίδρασης φωτοοξείδωσης του ακετυλενίου στην περιοχή των 280-325 nmel
dc.titleStudy of the acetylene photooxidation reaction in the 280-325 nm spectral rangeen
dc.typemasterThesisen
heal.abstractIn this work, we studied the photooxidation of acetylene throught the glyoxal creation channel in the spectral region 280 − 325 nm. A ns multiphoton ionization study in this region revealed 2 major lines attributed to the partially dissociating (Herzberg type II pre-dissociation) Valence state ˜C ′1Ag with lifetime of around 1 ps. The impact of this state to the phootoxidation mechanism of acetylene is considered negligible compared to the impact of the pre-dissociative Rydberg states ˜C1Πu and 3p1Πg (with lifetime of around 50 fs) although absent in typical ionization studies. The photooxidation of acetylene is believed to occur in the early stages of the fragmentation process of the parent molecule after excitation to the aforesaid pre-dissociating Rydberg states. The creation of C2H radicals seems to initiate the glyoxal production (the more the dissociating channel produces C2H radicals, the more the reactivity gets maximized). The reaction is supposed to proceed via a fourmembered ring re-arrangement of the C2H radical with the molecular Oxygen (during the pre-dissociation process) in the molecular skeleton and with the addition of a free Hydrogen, glyoxal is created.en
heal.academicPublisherΠανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Φυσικήςel
heal.academicPublisherIDuoiel
heal.accessfreeel
heal.advisorNameΣοφικίτης, Δημήτρηςel
heal.bibliographicCitationI. Papigkiotis. “Study of the acetylene photooxidation reaction in the 280-325 nm spectral range”. MSc thesis. University of Ioannina, Greece, 2023.en
heal.classificationΜοριακή Φυσικήel
heal.classificationMolecular Physicsen
heal.committeeMemberNameΣοφικίτης, Δημήτρηςel
heal.committeeMemberNameΚοσμίδης, Κωνσταντίνοςel
heal.committeeMemberNameΚαζιάννης, Σπυρίδωνel
heal.dateAvailable2023-10-19T05:58:40Z
heal.fullTextAvailabilitytrue
heal.fullTextAvailabilitytrue
heal.languageenel
heal.numberOfPages68 σ.el
heal.publicationDate2023-09-28
heal.recordProviderΠανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Φυσικήςel
heal.typemasterThesisel
heal.type.elΜεταπτυχιακή εργασίαel
heal.type.enMaster thesisen

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