Suppression of electron spin-echo envelope modulation peaks in double quantum coherence electron spin resonance

被引：34

作者：

Bonora, M ^{[1
]}

Becker, J ^{[1
]}

Saxena, S ^{[1
]}

机构：

[1] Univ Pittsburgh, Dept Chem, Pittsburgh, PA 15260 USA

来源：

JOURNAL OF MAGNETIC RESONANCE | 2004年 / 170卷 / 02期

基金：

美国国家科学基金会;

关键词：

double quantum ESR; dipolar interactions; FT-ESR; distance measurements; spin-labeling;

D O I：

10.1016/j.jmr.2004.07.006

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

We show the use of the observer blind spots effect for the elimination of electron spin-echo envelope modulation (ESEEM) peaks in double quantum coherence (DQC) electron spin resonance (ESR). The suppression of ESEEM facilitates the routine and unambiguous extraction of distances from DQC-ESR spectra. This is also the first demonstration of this challenging methodology on commercial instrumentations. (C) 2004 Elsevier Inc. All rights reserved.

引用

页码：278 / 283

页数：6

共 42 条

[1] Pulsed ELDOR spectroscopy measures the distance between the two tyrosyl radicals in the R2 subunit of the E-coli ribonucleotide reductase [J].