TEMPERATURE-DEPENDENCE OF THE DEUTERON AND OXYGEN QUADRUPOLE COUPLING-CONSTANTS OF WATER IN THE SYSTEM WATER DIMETHYL-SULFOXIDE

被引：42

作者：

LUDWIG, R ^{[1
]}

FARRAR, TC ^{[1
]}

ZEIDLER, MD ^{[1
]}

机构：

[1] RHEIN WESTFAL TH AACHEN,INST PHYS CHEM,D-52056 AACHEN,GERMANY

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1994年 / 98卷 / 27期

关键词：

D O I：

10.1021/j100078a006

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

NMR deuteron and oxygen-17 relaxation rates of water in a mixture of 68 mol % water and 32 mol % dimethyl sulfoxide (DMSO) were measured for temperatures between 308 and 183 K. Using these data and the rotational correlation times obtained from the oxygen-17-induced proton relaxation rate in a former study, the quadrupole coupling constants for deuterium and oxygen-17 were derived. Both quadrupole coupling constants show a slight temperture dependence. Comparison of deuteron and oxygen-17 correlation times indicates that the reorientation of the water molecule in the H2O/DMSO mixture is anisotropic.

引用

页码：6684 / 6687

页数：4

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