Comparative Study of Influences of Gamma Rays on Calix[4]Arene and 25,27-di(4-Nitrobenzyl)-26,28-Dihydroxycalix[4]Arene: EPR Study

• Authors: Y. Ceylan , K. Usta , N. Ceylan , A. Usta , Y. Koc
• Languages of publication: EN

Abstracts

EN

In the present study, calix[4]arene and its derivate 25,27-di(4-nitrobenzyl)-26,28-dihydroxycalix[4]arene were irradiated for 72 hours by ⁶⁰Co gamma rays at dose rate of 0.720 kGy/h. These irradiated samples were analyzed by EPR method and it was found that one type of radical was produced in calix[4]arene, and two type of radicals were produced in 25,27-di(4-nitrobenzyl)-26,28-dihydroxycalix[4]arene. The measurements were performed in the temperature range of 273-400 K using x-band EPR spectrometer. It was observed that the spectra, obtained from two samples, have very weak temperature dependence. Hyperfine and g parameters were calculated for two samples.

Keywords

EN

87.66.Uv; 36.20.Kd; 39.30.+w; 33.35.+r

Discipline

• 36.20.Kd: Electronic structure and spectra
• 33.35.+r: Electron resonance and relaxation(see also 76.30.-v Electron paramagnetic resonance and relaxation in condensed matter)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2017
• Volume: 132
• Issue: 3
• Pages: 1211-1213

Dates

published

2017-09

Contributors

author

Y. Ceylan

• Selcuk University, Department of Physics, Konya, Turkey

author

K. Usta

• Selcuk University, Department of Physics, Konya, Turkey

author

N. Ceylan

• Selcuk University, Department of Physics, Konya, Turkey

author

A. Usta

• Selcuk University, Department of Physics, Konya, Turkey

author

Y. Koc

• Selcuk University, Department of Physics, Konya, Turkey

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Identifiers

DOI

10.12693/APhysPolA.132.1211