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Issue 31, 2009
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Ferro- and antiferromagnetic exchange coupling constants in PELDOR spectra

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Abstract

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 ΔJ 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.

Graphical abstract: Ferro- and antiferromagnetic exchange coupling constants in PELDOR spectra

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Publication details

The article was received on 18 Mar 2009, accepted on 01 Jun 2009 and first published on 29 Jun 2009


Article type: Paper
DOI: 10.1039/B905524J
Citation: Phys. Chem. Chem. Phys., 2009,11, 6708-6714

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    Ferro- and antiferromagnetic exchange coupling constants in PELDOR spectra

    D. Margraf, P. Cekan, T. F. Prisner, S. Th. Sigurdsson and O. Schiemann, Phys. Chem. Chem. Phys., 2009, 11, 6708
    DOI: 10.1039/B905524J

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