Document Detail


Cobalt(II) citrate cubane single-molecule magnet.
MedLine Citation:
PMID:  18627140     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
An investigation of the magnetic properties of the cobalt(II) citrate cubane [C(NH 2) 3] 8{Co 4(cit) 4}.4H 2O reveals that the cluster is a new cobalt(II) single-molecule magnet, with an energy barrier to reorientation of the magnetization, Delta E/ k B = 21 K, and tau 0 = 8 x 10 (-7) s. The compound displays distinct, frequency-dependent peaks in the out-of-phase (chi'') component of the ac magnetic susceptibility and magnetization versus field hysteresis loops that are temperature and sweep rate dependent. The hysteresis loops collapse at zero field due to very fast quantum tunneling of the magnetization (QTM).
Authors:
Kyle W Galloway; Alexander M Whyte; Wolfgang Wernsdorfer; Javier Sanchez-Benitez; Konstantin V Kamenev; Andrew Parkin; Robert D Peacock; Mark Murrie
Publication Detail:
Type:  Journal Article     Date:  2008-07-16
Journal Detail:
Title:  Inorganic chemistry     Volume:  47     ISSN:  1520-510X     ISO Abbreviation:  Inorg Chem     Publication Date:  2008 Aug 
Date Detail:
Created Date:  2008-08-11     Completed Date:  2008-10-02     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0366543     Medline TA:  Inorg Chem     Country:  United States    
Other Details:
Languages:  eng     Pagination:  7438-42     Citation Subset:  -    
Affiliation:
WestCHEM, Department of Chemistry, University of Glasgow, Glasgow G12 8QQ, UK.
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