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 |
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Publisher |
ROYAL SOC CHEMISTRY |
Book Title |
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ISSN |
1477-9226 |
EISSN |
1477-9234 |
Conference Name |
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Bibtex ID |
ISI:000375001000042 |
Observations |
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