Please use this identifier to cite or link to this item: https://doi.org/10.1039/c9dt02434d
Title: Comparison of two field-induced Er-III single ion magnets
Authors: Kuhne, Irina A
Ungur, Liviu 
Esien, Kane
Carter, Anthony B
Gordon, John D
Pauly, Cameron
Muller-Bunz, Helge
Felton, Solveig
Zerutla, Dominic
Morgan, Grace G
Keywords: Science & Technology
Physical Sciences
Chemistry, Inorganic & Nuclear
Chemistry
LANTHANIDE COMPLEXES
SPECTROSCOPIC DETERMINATION
RELAXATION DYNAMICS
SLOW RELAXATION
EXCITED-STATES
METAL-IONS
ANISOTROPY
SYMMETRY
BLOCKING
LIGAND
Issue Date: 7-Nov-2019
Publisher: ROYAL SOC CHEMISTRY
Citation: Kuhne, Irina A, Ungur, Liviu, Esien, Kane, Carter, Anthony B, Gordon, John D, Pauly, Cameron, Muller-Bunz, Helge, Felton, Solveig, Zerutla, Dominic, Morgan, Grace G (2019-11-07). Comparison of two field-induced Er-III single ion magnets. DALTON TRANSACTIONS 48 (41) : 15679-15686. ScholarBank@NUS Repository. https://doi.org/10.1039/c9dt02434d
Abstract: We present the synthesis, magnetic and photophysical properties of four mononuclear LnIII complexes in two isostructural lattices containing GdIII and ErIII. A heptadentate Schiff base ligand and acetate versus trifluoroacetate were used to synthesise complexes 1-4, among which the two ErIII complexes 2 and 4 exhibit field-induced SIM behaviour with almost similar Ueff values (31.6 K for 2 and 32.7 K for 4). Ab initio calculations show the structure of the low-lying energy states and highlight that there is already significant tunnelling in the ground doublet state, but the application of a weak magnetic field of 0.05 T is sufficient for ac magnetic measurements to suppress tunnelling in the ground state. The calculated main magnetic axes (gZ) of the ground Kramers doublets show small differences between the two ErIII compounds 2 and 4 due to their different ligand fields.
Source Title: DALTON TRANSACTIONS
URI: https://scholarbank.nus.edu.sg/handle/10635/228708
ISSN: 14779226
14779234
DOI: 10.1039/c9dt02434d
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