Scopus
YÖKSİS DOI Eşleşti
SJR Q2
EPR study of gamma irradiated 2,5-di-tert-butyl-hydroquinone single crystals
Radiation Physics and Chemistry · Ocak 2011
YÖKSİS Kayıtları
EPR study of gamma irradiated 2 5 di tert butyl hydroquinone single crystals
Radiation Physics and Chemistry · 2011 SCI
Prof. Dr. ÜLKÜ AKPINAR →
YÖKSİS Kayıtları — ISSN Eşleşmesi
EPR investigation of gamma irradiated single crystal guaifenesin A combined experimental and computational study
2016 ISSN: 0969806X SCI
Prof. Dr. ÜLKÜ AKPINAR →
Magnetic properties of single crystal alpha benzoin oxime An EPR study
2012 ISSN: 0969806X SCI
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Magnetic properties of gamma irradiated single crystals of cholesteryl chloride An EPR study
2011 ISSN: 0969806X SCI
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EPR study of gamma irradiated 2 5 di tert butyl hydroquinone single crystals
2011 ISSN: 0969806X SCI
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CW EPR study of 2 2 4 4 tetramethyl 3 pentanone oxime single crystals
2010 ISSN: 0969806X SCI
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EPR study of gamma irradiated single crystal 4 phenylsemicarbazide
2010 ISSN: 0969806X SCI
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Determination of the irradiation effects on senna (Casia acutifolia) leaves by ESR technique and microbiological analysis
2019 ISSN: 0969-806X SCI-Expanded Q1
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Gamma irradiation effects on EuBa2Cu3O7 high temperature superconductor
2013 ISSN: 0969-806X SCI-Expanded
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The dosimetric comparison and evaluation of helical tomotherapy, volumetric-modulated arc radiotherapy (VMAT), step-and-shoot and sliding window radiotherapy techniques in nasopharyngeal carcinoma
2022 ISSN: 0969-806X SCI-Expanded Q1
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Dosimetric evaluation of three-phase adaptive radiation therapy in head and neck cancer
2023 ISSN: 0969-806X SCI-Expanded Q1
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Dosimetric evaluation of three-phase adaptive radiation therapy in head and neck cancer
2023 ISSN: 0969-806X SCI-Expanded Q1
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Paramagnetic characterization and dosimetric properties of Airfix drug and its ingredients (Montelukast sodium, Sorbitol): An EPR and DFT study
2022 ISSN: 0969-806X SCI Q1
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Experimental evaluation of out-of-field dose for different high-energy electron beams and applicators used in external beam radiotherapy
2024 ISSN: 0969-806X SCI-Expanded Q1
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Effect of different CTV shrinkage and skin flash margins on skin dose for left chest wall IMRT: A dosimetric study
2024 ISSN: 0969-806X SCI-Expanded Q1
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The effect of radiation on grape seeds: ESR and microbiological analysis
2023 ISSN: 0969-806X SCI-Expanded Q1
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The effect of radiation on grape seeds: ESR and microbiological analysis
2023 ISSN: 0969-806X SCI-Expanded Q2
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The effect of radiation on grape seeds: ESR and microbiological analysis
2023 ISSN: 0969-806X SCI-Expanded Q1
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Synergizing electrical, mechanical, and radiation shielding properties of dendritic copper filled epoxy polymer composites
2024 ISSN: 0969-806X SCI-Expanded Q1
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Investigation of the effect of bolus on skin dose in breast cancer treatment with tomotherapy and LINAC radiotherapy devices
2024 ISSN: 0969-806X SCI-Expanded Q1
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Examining the effect of bolus use on skin dose during postmastectomy radiotherapy using in vivo thermoluminescence dosimetry: An IMRT and a 3DCRT study
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Makale Bilgileri
ISSN0969806X
Yayın TarihiOcak 2011
Cilt / Sayfa80 · 38-43
Scopus ID2-s2.0-77957345113
Özet
γ-irradiated single crystals of 2,5-di-tert-butyl-hydroquinone (DTBHQ) were investigated using the electron paramagnetic resonance (EPR) technique. The spectra of the crystals at different orientations in the magnetic field between temperatures of 120 and 450. K, were found to be temperature dependent.Taking into consideration the chemical structure and the experimental spectra of the irradiated single crystals of DTBHQ, we assumed that one or more paramagnetic species were produced, each having an unpaired electron delocalized in the phenyl ring. Pursuant to this assumption, four possible radicals were modeled using the B3LYP/6-31+G(d) level of density-functional theory. EPR parameters were calculated for these modeled radicals using the B3LYP method and TZVP basis set. The calculated hyperfine-coupling constants were used as starting points for simulations. The experimental and simulated spectra for each of the three crystallographic axes were well matched for the modeled radical R4; we thus identified the hydroquinone anion radical as a paramagnetic species produced in DTBHQ. The experimental g-factor of the hydroquinone anion radical were found to be anisotropic with the average value giso=2.0096. The hyperfine coupling constants of the Hα proton was found anisotropic with the average value (aH7α)iso=6.3G and HΒ proton was found isotropic with the average value (aH8Β)=3.5G. © 2010 Elsevier Ltd.
Yazarlar (5)
1
Ulku Sayin
2
O. Dereli
3
E. Turkkan
4
Hüseyin Yüksel
5
M. Birey
Anahtar Kelimeler
2,5-di-tert-butyl-hydroquinone (DTBHQ)
DFT calculations
EPR
G-factor
Isotropic hyperfine coupling constant a
Spectroscopic splitting factor
Kurumlar
Ankara Üniversitesi
Ankara Turkey
Selçuk Üniversitesi
Selçuklu Turkey
Scimago Dergi (ISSN Eşleşmesi)
Radiation Physics and Chemistry
Q2
SJR Skoru0,536
H-Index111
YayıncıElsevier Ltd
ÜlkeUnited Kingdom
Radiation (Q2)
Metrikler
20
Atıf
5
Yazar
6
Anahtar Kelime