title: Chloride-bridged, defect-dicubane {Ln4} core clusters: syntheses, crystal structures and magnetic properties.
abstract: Three chloride-bridged lanthanide compounds, [Ln4Cl6(CH3OH)12(OH)2]·4Cl·2CH3OH [Ln = Gd (), Dy () and Er ()], have been unexpectedly isolated by the reactions of LnCl3·6H2O and N,N'-bis(salicylidene)-1,2-(phenylene-diamine) (H2L). X-ray crystallographic analysis reveals a triclinic cell with a unique defect-dicubane {Ln4} core and the structure across this series is nominally isomorphic. Measurements of direct current magnetic susceptibility and isothermal magnetization give insight into the relevant cluster Hamiltonians for , , and , and alternating current susceptibility shows slow relaxation in , but not in or down to 2 K and up to 1 kHz.
authors: National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA. daniel.pajerowski@nist.gov.
authors: Daniel M
authors: DM
authors: Pajerowski
authors: Quan
authors: Q
authors: Li
authors: Jason
authors: J
authors: Hyun
authors: Cindi L
authors: CL
authors: Dennis
authors: Daniel
authors: D
authors: Phelan
authors: Pengfei
authors: P
authors: Yan
authors: Peng
authors: P
authors: Chen
authors: Guangming
authors: G
authors: Li