- Tytuł:
- Radiation Damage Centers in Cholesteryl Heptanoate
- Autorzy:
-
Sayin, U.
Can, C.
Türkkan, E.
Dereli, Ö.
Ozmen, A.
Yüksel, H. - Powiązania:
- https://bibliotekanauki.pl/articles/1399506.pdf
- Data publikacji:
- 2013-07
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
- 61.80.-x
- Opis:
- Cholesterol takes part significantly in many biological mechanisms and as important component for manufacture of bile acids, steroid hormones, and several fat-soluble vitamins. To determine magnetic properties of cholesteryl heptanoate $(C_{34}H_{58}O_2)$ which is an important cholesteryl ester in human life and new technology, the single crystals of cholesteryl heptanoate were grown by slow evaporation of concentrated ethyl acetate solution and the grown single crystals were irradiated at room temperature with $\text{}^{60}Co \gamma $ ray. The radical produced by gamma irradiation has been investigated in the range of temperatures 123-330 K for different orientations of the crystal in a magnetic field by EPR. Radiation damage center was attributed to radical $ĊH_α CH_{2β}$. The g factor and hyperfine coupling constants have slight dependence on temperature and evident dependence on the orientation of the magnetic field. Determined g factor and hyperfine coupling constants for the radical $ĊH_α CH_{2β}$ were found to be anisotropic with the average values $g_{av}=2.0036$, $(a_{CH_\alpha})_{av}=14.52 G, (a_{CH_{2\beta}})_{av}=25.78 G$.
- Źródło:
-
Acta Physica Polonica A; 2013, 124, 1; 70-73
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł