An EPR study on single crystals of dimethyl-1,3-cyclohexanedione by gamma-rays

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dc.contributor.authorAras, Erdal
dc.contributor.authorUsta, Ayhan
dc.contributor.authorErturk, Serkan
dc.contributor.authorAsik, Biray
dc.date.accessioned2019-08-01T13:38:39Z
dc.date.available2019-08-01T13:38:39Z
dc.date.issued2012
dc.departmentNiğde ÖHÜ
dc.description.abstractSingle crystals of dimethyl-1,3-cyclohexanedione (C8H12O2) were produced by slow evaporation of the concentrated ethyl acetate solutions. These single crystals were exposed to Co-60 gamma-rays with a dose speed of 0.950 kGy/h at room temperature for 24, 48, and 72 h. The free radicals of the samples irradiated for 48 and 72 h were detected using electron paramagnetic resonance (EPR)-X-band spectrometer. EPR measurements were performed between 120 and 300 K. The sample irradiated for 48 h by gamma-rays was rotated in steps of 10 degrees at 298 K. The spectrum parameters were found to be dependent on the temperature. Two radicals were determined in the molecular structure irradiated. These radiation damage centers were called R1 and R2. The average values of g and the hyperfine coupling constants were calculated as follows: a(Ha) = 6.84 G, a(Hb) = 3.60 G, g = 2.0040 for R1, a(H) = 28 G, g = 2.0062 for R2.
dc.description.sponsorshipScientific Research Projects coordination centers of Nigde; Selcuk University, Turkey
dc.description.sponsorshipThis study was partially supported by the Scientific Research Projects coordination centers of Nigde and Selcuk University, Turkey.
dc.identifier.doi10.1080/10420150.2011.614612
dc.identifier.endpage162
dc.identifier.issn1042-0150
dc.identifier.issn1029-4953
dc.identifier.issue3
dc.identifier.scopus2-s2.0-84860790343
dc.identifier.scopusqualityQ3
dc.identifier.startpage157
dc.identifier.urihttps://dx.doi.org/10.1080/10420150.2011.614612
dc.identifier.urihttps://hdl.handle.net/11480/4645
dc.identifier.volume167
dc.identifier.wosWOS:000300852100001
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthor[0-Belirlenecek]
dc.language.isoen
dc.publisherTAYLOR & FRANCIS LTD
dc.relation.ispartofRADIATION EFFECTS AND DEFECTS IN SOLIDS
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectEPR parameters
dc.subjectgamma-irradiation effects
dc.subjectdefects
dc.subjectdimethyl-1,3-cyclohexanedione
dc.titleAn EPR study on single crystals of dimethyl-1,3-cyclohexanedione by gamma-rays
dc.typeArticle

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