2002
DOI: 10.1021/jp0208438
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Reorientational Dynamics of the Model Compound 1,2,3,4-Tetrahydro-5,6-dimethyl- 1,4-methanonaphthalene in Neat Liquid from Temperature-Dependent 13C Nuclear Magnetic Relaxation Data:  Spectral Densities and Correlation Functions

Abstract: The reorientational motion of the hydrocarbon 1,2,3,4-tetrahydro-5,6-dimethyl-1,4-methanonaphthalene (5,6-Me 2 THMN) was studied over a wide range of temperature by the evaluation of 13 C spin-lattice relaxation rates and NOE factors. The data from measurements at 22.63, 75.47, and 100.62 MHz were fitted to spectral densities introduced by Bloembergen, Purcell and Pound (1948), Davidson and Cole (1951), and for the first time, by a new spectral density derived from a Tricomi correlation function recently intro… Show more

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Cited by 6 publications
(6 citation statements)
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“…The correlation time maxima observed in Figure are typical for 13 C relaxation rate studies of ionic liquids . The ring and immediately adjacent carbons have correlation time maxima at higher temperatures than the remaining aliphatic carbons in the nonyl side chain. ,,
5
…”
Section: Resultsmentioning
confidence: 83%
See 1 more Smart Citation
“…The correlation time maxima observed in Figure are typical for 13 C relaxation rate studies of ionic liquids . The ring and immediately adjacent carbons have correlation time maxima at higher temperatures than the remaining aliphatic carbons in the nonyl side chain. ,,
5
…”
Section: Resultsmentioning
confidence: 83%
“…In particular, these models and theories should provide a better understanding of molecular interactions relative to each other and their dynamic behavior in solution. Nuclear relaxation rates often provide valuable information concerning the dynamics and molecular interactions that occur in the liquid state. Use of nuclear spin−lattice relaxation rates to obtain information concerning reorientational dynamics is often restricted to the extreme narrowing region. In this region, the product of the resonance frequency and the rotational correlation time is less than unity.…”
Section: Introductionmentioning
confidence: 99%
“…8), the slopes of the curves were much steeper than for the experimental rates (Figure 9). NMR relaxation studies in viscous solution indicate that 1/T 1 may not follow the BPP spectral density [44,45], which is attributed to a distribution of tumbling correlation times that can be modeled with a Cole-Davidson spectral density function (Eq. (9)) [18,19,22,45].…”
Section: Spectral Density Functionmentioning
confidence: 99%
“…In particular, nuclear relaxation rates often provide valuable information concerning the dynamics and molecular interactions that occur in the liquid state. Use of nuclear spin−lattice relaxation rates to obtain information concerning reorientational dynamics is often restricted to the extreme narrowing region. In this region, the product of the resonance frequency and the rotational correlation time is less than unity.…”
Section: Introductionmentioning
confidence: 99%