EPR analysis of gamma irradiated single crystal cimetidine
Küçük Resim Yok
Tarih
2013
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
ELSEVIER SCIENCE BV
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The magnetic properties of gamma irradiated single crystal cimetidine were investigated between temperatures of 123 K and 418 K and between microwave power of 0.01 mW and 150 mW by electron paramagnetic resonance. Magnetic field orientation in each of the three perpendicular axes, microwave power, and temperature dependence of the EPR spectra has led to more than one radical being produced by gamma irradiation in the host crystal. The distinctive radical was attributed to being a ring type radical; however, the other radicals could not be identified because of the superimposition. The EPR parameters of the ring type radical were determined to be: a(H-alpha)(av) = 2.42 mT, a(N-alpha)(av) = 0.62 mT, a(H-beta)(av) = 1.08 mT, a(H-gamma)(av) = 0.2 mT, a(N-beta)(av) = 0.3 mT, and (g)(av) = 2.0030, respectively. (C) 2012 Elsevier B.V. All rights reserved.
Açıklama
Anahtar Kelimeler
EPR, Gamma irradiation, Cimetidine, H-2-receptor antagonist, Hyperfine coupling constant, Spectroscopic splitting factor
Kaynak
JOURNAL OF MOLECULAR STRUCTURE
WoS Q Değeri
Q3
Scopus Q Değeri
Q2
Cilt
1031
