Issue 9, 2009
From the journal:

Physical Chemistry Chemical Physics

Ferromagnetic spins interaction in tetraaza- and hexaazacyclophanes

Irena Kulszewicz-Bajer,*a   Vincent Maurel,a   Serge Gambarelli,b   Ireneusz Wielgusa  and  David Djuradoc  

* Corresponding authors

a Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, Warsaw, Poland
E-mail: ikulsz@ch.pw.edu.pl; iwielgus@ch.pw.edu.pl

b CEA, INAC, SCIB, LRM, (UMR-E 3 CEA-UJF), Grenoble, France
E-mail: vincent.maurel@cea.fr; serge.gambarelli@cea.fr

c CEA, INAC, SPrAM, Grenoble, France
E-mail: david.djurado@cea.fr

Abstract

Teraaza- and hexaazacyclophanes have been synthesized via a one-step palladium catalyzed amination reaction. The chemical oxidation of cyclophanes leads to the formation of radical cations, the presence of which was manifested by the appearance of new bands in UV-Vis-NIR and IR spectra. Spins of radical cations can be magnetically coupled. The nutation pulsed-EPR technique (PEANUT experiment) enables us to determine the multiplicity of the systems for different oxidant/cyclophane ratios. Spins of cyclophanes oxidized to diradical dications interact ferromagnetically to form a pure triplet state.

Graphical abstract: Ferromagnetic spins interaction in tetraaza- and hexaazacyclophanes

About
Cited by
Related
Download options Please wait...

Article information

DOI
https://doi.org/10.1039/B814957G
Article type
Paper
Submitted
27 Aug 2008
Accepted
27 Nov 2008
First published
15 Jan 2009

Phys. Chem. Chem. Phys., 2009,11, 1362-1368

Permissions

Request permissions

Ferromagnetic spins interaction in tetraaza- and hexaazacyclophanes

I. Kulszewicz-Bajer, V. Maurel, S. Gambarelli, I. Wielgus and D. Djurado, Phys. Chem. Chem. Phys., 2009, 11, 1362 DOI: 10.1039/B814957G

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements