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

Published

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)2ð”…˜CLð”…–CH3OH [Ln=Gd (1), Dy (2) and Er (3)], have been unexpectedly isolated by the reactions of LnCl3ð”…šH2O 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

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 {Ln<sub>4</sub>} Core Clusters: Syntheses, Crystal Structures and Magnetic Properties, Dalton Transactions, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=915999 (Accessed December 3, 2024)

Issues

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Created August 21, 2014, Updated February 19, 2017