Dinuclear cobalt bis(dioxolene) complex exhibiting two sequential thermally induced valence tautomeric transitions

Nigel G R Hearns; Jasmine L Korcok; Michelle M Paquette; Kathryn E Preuss

doi:10.1021/ic0608997

Dinuclear cobalt bis(dioxolene) complex exhibiting two sequential thermally induced valence tautomeric transitions

Inorg Chem. 2006 Oct 30;45(22):8817-9. doi: 10.1021/ic0608997.

Authors

Nigel G R Hearns¹, Jasmine L Korcok, Michelle M Paquette, Kathryn E Preuss

Affiliation

¹ Department of Chemistry, University of Guelph, Guelph, Ontario, Canada.

PMID: 17054329
DOI: 10.1021/ic0608997

Abstract

4,6-Di-2'-pyridylpyrimidine is employed as a bis(diimine) ligand bridging two cobalt bis(dioxolene) centers. The thermally induced valence tautomeric transitions of these two metal centers are coupled through the ligand. The result is that sequential switching from high-spin Co(II) to low-spin Co(III) of one center, followed by the onset of switching of the other center at lower temperature, is observed in a solid amorphous thin film by IR absorption spectroscopy.