Publication Type Journal Article
Title Bis-phenoxido and bis-acetato bridged heteronuclear \(CoDyIII)-Dy-III\ single molecule magnets with two slow relaxation branches
Authors Susanta Hazra Jan Titis Dusan Valigura Roman Boca Sasankasekhar Mohanta
Groups CCC
Journal DALTON TRANSACTIONS
Year 2016
Month
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Volume 45
Number 17
Pages 7510-7520
Abstract Two bis-mu-phenoxido-bis-mu-acetato heterobimetallic \(CoDyIII)-Dy-III\ complexes 1 and 2, formulated as [Co-III-(DyL)-L-III(mu-OAc)(2)(NO3)(2)] derived from the comparable hexadentate Schiff bases N,N -ethylenebis(3-ethoxysalicylaldimine) and N,N -ethylenebis(3-methoxysalicylaldimine) were synthesized and X-ray structure analysis confirms their nearly identical structures. These are the first examples of bis(mu-phenoxido)-bis(mu-carboxylato) \(CoDyIII)-Dy-III\ systems. The AC susceptibility measurements show that both complexes exhibit a field-induced slow magnetic relaxation with two relaxation branches. While the high-frequency process spans the usual range of the relaxation time for analogous single molecule magnets (tau(0) similar to 10(-7) s), the low-frequency branch is as slow as tau similar to 0.1 s at T = 1.9 K and B = 0.2 T.
DOI http://dx.doi.org/10.1039/c6dt00848h
ISBN
Publisher ROYAL SOC CHEMISTRY
Book Title
ISSN 1477-9226
EISSN 1477-9234
Conference Name
Bibtex ID ISI:000375001000042
Observations
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