Author:
Bock E.,Czubryt J.,Tomchuk E.
Abstract
The proton spin – lattice relaxation time of aniline-d2 in deuterated aniline solution was determined as a function of concentration and temperature over the temperature interval 260–360 °K using a pulsed nuclear magnetic resonance technique. In addition the proton spin – lattice relaxation time of aniline-d2 in deuterated benzene solution at 20 °C was also determined. It was found that the activation energies of the intra- and inter-molecular relaxation rates were of similar magnitude, viz. 4.5 and 4.4 kcal/mole, respectively. It was also found that at 20 °C the rotational correlation time, τr, of the C6H5NH2 molecule in infinitely dilute perdeutero benzene solution was approximately half that of the partially deuterated aniline molecule, viz. 3.0 × 10−12 and 6.3 × 10−12 s, respectively, and that τr of C6H5ND2 in infinitely dilute perdeutero aniline solution is much larger than in infinitely dilute perdeutero benzene solution and is equal to 19 × 10−12 s.
Publisher
Canadian Science Publishing
Subject
Organic Chemistry,General Chemistry,Catalysis
Cited by
3 articles.
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1. NMR Spectra of Anilines;PATAI'S Chemistry of Functional Groups;2009-12-15
2. Silicon-29 spin-lattice relaxation in organosilicon compounds;Journal of the American Chemical Society;1973-05
3. Proton relaxation in solid aniline and some methyl derivatives;Journal of the Chemical Society, Faraday Transactions 2;1972