title: Terminal solvent effects on the anisotropy barriers of Dy2systems.
abstract: A family of three dinuclear dysprosium complexes have been successfully synthesized and studied in terms of their magnetic properties. Complexes 1 and 2 share the formula [Dy2(ovph)2Cl2(solvent)2], where H2ovph = pyridine-2-carboxylic acid [(2-hydroxy-3-methoxyphenyl)methylene] hydrazide, and solvent = DMF (1), i-PrOH (2), while complex 3, [Dy2(ovph)2Cl2(H2O)3(EtOH)], exhibits differences in terms of the identity and number of coordinated solvent molecules. Thus, we investigate the impact of terminally bonded solvent molecules on the slow relaxation dynamics of {Dy2} SMMs, a parameter which can sometimes be overlooked in the quest to attain higher energy barriers. Notably, the exchange of DMF for i-PrOH, both of which coordinate through a single oxygen atom, results in a near 2-fold increase in Ueff, from 58 to 98 K, for 1 and 2, respectively.
authors.affiliation: Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie Curie, Ottawa, ON, Canada K1N 6N5. m.murugesu@uottawa.ca.
authors.forename: Y
authors.initials: Y
authors.lastname: Jiang
authors.forename: G
authors.initials: G
authors.lastname: Brunet
authors.forename: R J
authors.initials: RJ
authors.lastname: Holmberg
authors.forename: F
authors.initials: F
authors.lastname: Habib
authors.forename: I
authors.initials: I
authors.lastname: Korobkov
authors.forename: M
authors.initials: M
authors.lastname: Murugesu