title: Pentanuclear dysprosium hydroxy cluster showing single-molecule-magnet behavior.
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.
authors.affiliation: Institut für Anorgansiche Chemie, Universität Karlsruhe, Engesserstrasse Geb. 30.45, 76128 Karlsruhe, Germany.
authors.forename: Michael T
authors.initials: MT
authors.lastname: Gamer
authors.forename: Yanhua
authors.initials: Y
authors.lastname: Lan
authors.forename: Peter W
authors.initials: PW
authors.lastname: Roesky
authors.forename: Annie K
authors.initials: AK
authors.lastname: Powell
authors.forename: Rodolphe
authors.initials: R
authors.lastname: Clérac