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Updated: Feb 13, 2026

Single-Molecule Imaging of Nuclear Transport
Published on: June 9, 2010
Impact of nuclearity and topology on the single molecule magnet behaviour of hexaazatrinaphtylene-based cobalt
Maykon A Lemes1, François Magnan, Bulat Gabidullin
1Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada. jbrusso@uottawa.ca.
Abstract:
A hexaazatrinaphtylene-based transition metal complex that exhibits single molecule magnet (SMM) behaviour is reported herein. Both monometallic (1) and bimetallic (2) CoII complexes with distorted octahedral geometries could be obtained through a straightforward change in synthetic conditions. Field induced SMM behaviour was exhibited by 1, with a D value of -60 cm-1 and Ueff = 17 K originating from the unquenched orbital angular momentum of the octahedral CoII (d7) centre. On the other hand, 2 exhibits weak antiferromagnetic interactions with a positive D value, thus preventing the observation of SMM behaviour. This investigation reveals the influence of both nuclearity and topology on the magnetic properties of HATN based complexes.
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