Ferro- and antiferromagnetic exchange coupling constants in PELDOR spectra

被引：39

作者：

Margraf, D. ^{[1
,2
]}

Cekan, P.

Prisner, T. F. ^{[1
]}

Sigurdsson, S. Th. ^{[2
]}

Schiemann, O. ^{[3
]}

机构：

[1] Goethe Univ Frankfurt, Inst Phys & Theoret Chem, Ctr Biomol Magnet Resonance, D-60438 Frankfurt, Germany

[2] Univ Iceland, Inst Sci, IS-107 Reykjavik, Iceland

[3] Univ St Andrews, Ctr Biomol Sci, Ctr Magnet Resonance, St Andrews KY 1619ST, Fife, Scotland

来源：

PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2009年 / 11卷 / 31期

关键词：

ELECTRON DOUBLE-RESONANCE; PULSED ELECTRON; RADICAL PAIRS; SPIN-ECHO; ORIENTATION; ELDOR; SPECTROSCOPY; NUCLEOSIDE; SOLIDS; PROBE;

D O I：

10.1039/b905524j

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：

Pulsed electron electron double resonance (PELDOR) is a well-established method for measuring nanometer distances between paramagnetic centres. Here, we demonstrate on three rigid and conjugated biradicals how the presence of an exchange coupling constant J and its distribtion DJ influences PELDOR data and its analysis. In principle two combinations of J and D fulfill the experimental data in each case. The correct one, including the sign of J, can be determined via simulations in case the two halves of the Pake pattern are separated enough.

引用

页码：6708 / 6714

页数：7

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