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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 8, Number 2
BKCSDE 8(2)
February 20, 1987

Title	13C NMR Relaxation Study of Internal Rotation of Methyl Groups-Spin-Rotational Relaxation of methyl Carbon-13 in 2-bromo-p-xylene, 2,5-dimethylanisole and 2,5-dimethylaniline
Author	Jo Woong Lee*, Chull-Hyung Cho, Seong-Kyu Park, Byung-Wook Jo, Bong-Oh Ro, Sung-Hyu Choe
Keywords
Abstract	In this work we have investigated temperature dependence of spin-rotational relaxation rate, (1/T1)SR, of methyl carbon-13's in 2-bromo-p-xylene, 2,5-dimethylaniline, and 2,5-dimethylanisole and have found that temperature behaviors of two methyl carbon-13's in ortho- and meta-position, respectively, are substantially different. It has been confirmed that the modified Burke-Chan model proposed by Park et al. can nicely explain different temperature dependence of (1/T1)SR for these two methyl carbon-13's while the original Burke-Chan model fails to do so.
Page	73 - 79
Full Text	PDF

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