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Terminal solvent effects on the anisotropy barriers of Dy2 systems.
- Source :
-
Dalton Transactions: An International Journal of Inorganic Chemistry . 11/14/2016, Vol. 45 Issue 42, p16709-16715. 7p. - Publication Year :
- 2016
-
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. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 14779226
- Volume :
- 45
- Issue :
- 42
- Database :
- Academic Search Index
- Journal :
- Dalton Transactions: An International Journal of Inorganic Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 119069415
- Full Text :
- https://doi.org/10.1039/c6dt03366k