Relaxation in an A2 coupled spin system dissolved in a perdeuterated liquid crystal: The intermolecular dipolar random field cross relaxation term

Article abstract of DOI:10.1063/1.439213

A perdeuterated nematic liquid crystal N-(p-ethoxybenzylidene)-p-n-butylaniline (EBBA-d₂₃, 98percent deuterium) was synthesized to study relaxation of small molecules dissolved in anisotropic solvents.Proton spin-lattice relaxation in the coupled A₂ spin system of methylene chloride (CH2Cl2) was studied using both perhydro and perdeutero EBBA as the solvent.The relaxation was modeled as intramolecular dipole-dipole interactions plus other mechanisms that were treated collectively as fluctuating external random magnetic fields.Comparison of relaxation in EBBA and EBBA-d₂₃ allowed the first experimental measurement of the correlation coefficient between external random fields at the two protons due to dipolar interactions of the methylene protons with the protons or deuterons of the solvent (78percent correlated).The selective nuclear Overhauser effect was also studied.

Full text of DOI:10.1063/1.439213

Relaxation in an A 2 coupled spin system dissolved in a perdeuterated liquid crystal:
The intermolecular dipolar random field cross relaxation term
J. Courtieu, J. Jullien, Nguyen Thoi Lai, A. Guillois, P. Gonord, S. K. Kan, and Charles L. Mayne
Citation: The Journal of Chemical Physics 72, 953 (1980); doi: 10.1063/1.439213
View online: http://dx.doi.org/10.1063/1.439213
View Table of Contents: http://scitation.aip.org/content/aip/journal/jcp/72/2?ver=pdfcov
Published by the AIP Publishing
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This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
155.33.120.167 On: Mon, 01 Dec 2014 23:27:00

This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
155.33.120.167 On: Mon, 01 Dec 2014 23:27:00

This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
155.33.120.167 On: Mon, 01 Dec 2014 23:27:00

This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
155.33.120.167 On: Mon, 01 Dec 2014 23:27:00

This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
155.33.120.167 On: Mon, 01 Dec 2014 23:27:00

This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
155.33.120.167 On: Mon, 01 Dec 2014 23:27:00

This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
155.33.120.167 On: Mon, 01 Dec 2014 23:27:00