Chloride-Bridged, Defect-Dicubane {Ln4} Core Clusters: Syntheses, Crystal Structures and Magnetic Properties

Published

August 21, 2014

Author(s)

Daniel M Pajerowski, Quan Li, Jason Hyun, Cindi L. Dennis, Daniel Phelan, Pengfei Yan, Peng Chen, Guangming Li

Abstract

Three chlorid-bridged lanthanide compounds, [Ln₄Cl₆(CH₃OH)₁₂(OH)₂𔅘CL𔅖CH₃OH [Ln=Gd (1), Dy (2) and Er (3)], have been unexpectedly isolated by the reactions of LnCl₃𔅚H₂O 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 1, 2, and 3, and alternating current susceptibility shows slow relaxation in 2, but not in 1 or 3 down to 2 K and up to 1kHz.

Citation

Dalton Transactions

Volume

43

Pub Type

Journals

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Keywords

Synthesis, Structure, Lanthanide compounds, Defect-dicubane {Ln4} core, Single-molecule magnet

Citation

, D. , Li, Q. , Hyun, J. , Dennis, C. , Phelan, D. , Yan, P. , Chen, P. and Li, G. (2014), Chloride-Bridged, Defect-Dicubane {Ln₄} Core Clusters: Syntheses, Crystal Structures and Magnetic Properties, Dalton Transactions, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=915999 (Accessed November 8, 2024)