H. Sasaoka et al., IS THE QUARTET DUE TO CENTER-DOT-CH3 AND CENTER-DOT-C2H5 OR CENTER-DOT-NH3+ IN ALKALI FELDSPARS, Applied radiation and isotopes, 47(11-12), 1996, pp. 1415-1417
Citations number
5
Categorie Soggetti
Nuclear Sciences & Tecnology","Radiology,Nuclear Medicine & Medical Imaging","Chemistry Inorganic & Nuclear
The intensity of broad quartet signal often identified as methyl radic
al(. CH3) in alkali feldspars is enhanced by gamma-irradiation. The av
erage g factor and hyperfine A of the broad distorted quartet signal a
re g = 2.0033 and A = 2.45 mT, respectively, and were previously ident
ified as . CH3 or . C2H5. The intensity of the quartet signal is enhan
ced by two orders of the magnitude by hydrothermal experiments of Na-f
eldspars in NH3 atmosphere and therefore the signal was identified as
. NH3+ where the anisotropic hyperfine due to N (I = 1) is not observe
d due to broadening in the powdered spectrum. Copyright (C) 1996 Elsev
ier Science Ltd