Chemical exchange effect on the intensities of the 2D NOE cross peaks

被引：5

作者：

Yan, JL ^{[1
]}

Mao, XA ^{[1
]}

Shen, LF ^{[1
]}

机构：

[1] CHINESE ACAD SCI,WUHAN INST PHYS,LAB MAGNET RESONANCE & ATOM MOL PHYS,WUHAN 430071,PEOPLES R CHINA

来源：

CHEMICAL PHYSICS LETTERS | 1997年 / 272卷 / 3-4期

关键词：

D O I：

10.1016/S0009-2614(97)88021-9

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：

It has been observed experimentally that in NMR 2D NOESY experiments, when a nucleus is involved in both the Overhauser effect and chemical exchange, the intensities of the NOE cross peaks are influenced by the fate of the chemical exchange. Calculations show that when the exchange rate is 6-7 times faster than the cross relaxation rate, the NOE cross peaks become too weak to be observed, although the internuclear distances are fixed. (C) 1997 Published by Elsevier Science B.V.

引用

页码：278 / 283

页数：6

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