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Nuclear magnetic resonance spectroscopy. Concentration dependence of the T_1 relaxation time for ^(13)C in dioxane-D_2O. Some experimental problems with T_1 measurements

Armitage, Ian M. and Huber, Hanspeter and Live, David H. and Pearson, H. and Roberts, John D. (1974) Nuclear magnetic resonance spectroscopy. Concentration dependence of the T_1 relaxation time for ^(13)C in dioxane-D_2O. Some experimental problems with T_1 measurements. Journal of Magnetic Resonance, 15 (1). pp. 142-149. ISSN 0022-2364. http://resolver.caltech.edu/CaltechAUTHORS:20151023-125008241

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Abstract

The ^(13)C T_1 relaxation times determined for dioxane-D_2O solutions by the progressive saturation method have been found to range from 5 sec for 1:1 (v/v) dioxane-D_2O to 12 sec for neat dioxane. The concentration dependence roughly parallels the inverse of the viscosity and is likely to be associated with changes in correlation times because of hydrogen bonding. A 2:1 (v/v) dioxane-D_2O mixture with a T_1 of 6.2 ± 0.6 sec at 30°C has been found to be a useful standard for checking instrument performance in the determination of T_1 values. A number of experimental problems associated with measuring T_1 are discussed.


Item Type:Article
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URLURL TypeDescription
http://dx.doi.org/10.1016/0022-2364(74)90183-8DOIArticle
http://www.sciencedirect.com/science/article/pii/0022236474901838PublisherArticle
Additional Information:© 1974 Academic Press Inc. Received February 25, 1974. Supported by the Public Health Service, Research Grant No. GM-11072, from the Division of General Medical Sciences. Harkness Fellow, 1972-1974.
Funders:
Funding AgencyGrant Number
U.S. Public Health Service (USPHS)GM-11072
New York Commonwealth FundUNSPECIFIED
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Caltech Gates and Crellin Laboratories of Chemistry4840
Record Number:CaltechAUTHORS:20151023-125008241
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20151023-125008241
Official Citation:Ian M Armitage, Hanspeter Huber, David H Live, H Pearson, John D Roberts, Nuclear magnetic resonance spectroscopy. Concentration dependence of the T1 relaxation time for 13C in dioxane-D2O. Some experimental problems with T1 measurements, Journal of Magnetic Resonance (1969), Volume 15, Issue 1, July 1974, Pages 142-149, ISSN 0022-2364, http://dx.doi.org/10.1016/0022-2364(74)90183-8. (http://www.sciencedirect.com/science/article/pii/0022236474901838)
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ID Code:61497
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:26 Oct 2015 21:27
Last Modified:26 Oct 2015 21:27

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