Fourier transform carbon-13 spin–lattice relaxation study of motion of cyclic hydrocarbons
نویسندگان
چکیده
منابع مشابه
Carbon-13 Fourier transform nuclear magnetic resonance. II. Ribonuclease.
High-resolution Fourier transform nuclear magnetic resonance was used to observe the natural abundance (13)C spectrum of a 0.02 M solution of bovine pancreatic ribonuclease A. Peaks assignable to only three carbons were easily observed after 10 hr of signal averaging. A number of tentative assignments were made. As expected, the (13)C spectrum was appreciably richer in detail than the correspon...
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13C N M R spectra have been obtained f0r.a series of LnNi(CO)o-n derivatives (n = 0-3) where L = PR3, PPhzY, PPhY2, P(OR')3, and Pc13 (R = Me, Et, Bu, Ph; R' = Me, Et, l-Pr, Ph; Y = C1, Me, OMe, OPh). The effect upon the carbonyl chemical shift of the replacement of X by Y substituents in X3-nYnPNi(C0)3 derivatives appears to be additive, as is the effect of the sequential replacement of carbon...
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The resolution in proton-decoupled natural-abundance i3 NMRt spectra of large organic and biological molecules is normally considerably greater than in proton NMR spectra, as a result of the large range of '3C chemical shifts 'and the absence of' 3C—' 3C coupling. The Fourier transform NMR technique has partly overcome the problem of very poor sensitivity of natural-abundance l3 NMR. As example...
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ژورنال
عنوان ژورنال: Canadian Journal of Chemistry
سال: 1980
ISSN: 0008-4042,1480-3291
DOI: 10.1139/v80-269