STUDY OF NMR RELAXATION OF XE-131 IN QUADRUPOLAR SOLVENTS

被引：20

作者：

DEJAEGERE, A ^{[1
]}

LUHMER, M ^{[1
]}

STIEN, ML ^{[1
]}

REISSE, J ^{[1
]}

机构：

[1] UNIV LIBRE BRUXELLES,SERV CHIM ORGAN,CP 165,50 AV FD ROOSEVELT,B-1050 BRUSSELS,BELGIUM

来源：

JOURNAL OF MAGNETIC RESONANCE | 1991年 / 91卷 / 02期

关键词：

D O I：

10.1016/0022-2364(91)90198-3

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

An experimental and theoretical study of the quadrupolar relaxation of xenon-131 by quadrupolar solvents has been performed. The electric-field-gradient (EFG) fluctuations at the xenon nucleus are considered to be of purely electrostatic origin and are calculated by means of a new theoretical model called PISA (pair interactions structureless approximation), which is based on a simplified description of the structure of molecular liquids. The PISA results are compared to those of a Monte Carlo simulation. The influence of self- and cross-correlation functions on the total EFG correlation function is discussed. Calculated EFG fluctuations are then used, together with experimental relaxation rates, to determine effective correlation times. These correlation times are analyzed by considering different solvent motions. © 1991.

引用

页码：362 / 374

页数：13

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