Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1411970 | Journal of Molecular Structure | 2006 | 5 Pages |
Abstract
Mobility in γ-glycine can be measured by proton relaxation or line-shape analysis of wide-line 2H spectra of deuterium-substituted γ-glycine. The temperature dependence of the wide-line 2H spectra indicates an activation energy of 33±2 kJ/mol, in agreement with the activation energy extracted from proton spin–lattice relaxation times. The proton spin–lattice relaxation time of the protons in partially deuterated γ-glycine is 78 s, much longer than the 4-s T1 of the undeuterated material. The comparison demonstrates how effectively the amine protons act as a relaxation sink.
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Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
R.E. Taylor, Nicholas Chim, C. Dybowski,