Pentanuclear dysprosium hydroxy cluster showing single-molecule-magnet behavior |
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Authors: | Gamer Michael T Lan Yanhua Roesky Peter W Powell Annie K Clérac Rodolphe |
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Affiliation: | Institut für Anorgansiche Chemie, Universit?t Karlsruhe, Engesserstrasse Geb. 30.45, 76128 Karlsruhe, Germany. |
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Abstract: | A pentanuclear dysprosium hydroxy cluster of composition [Dy 5(mu 4-OH)(mu 3-OH) 4(mu-eta (2)-Ph 2acac) 4(eta (2)-Ph 2acac) 6] ( 1; Ph 2acac = dibenzoylmethanide) was prepared starting from [DyCl 3.6H 2O] and dibenzoylmethane. Both static (dc) and dynamic (ac) magnetic properties of 1 have been studied. Below 3 K, the appearance of slow relaxation of the magnetization typical for single-molecule magnets is seen, even if no hysteresis effects on the M vs H data are observed above 1.8 K. |
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