Tetranuclear and Octanuclear Cobalt(II) Citrate Cluster Single Molecule Magnets | Zendy

Moubaraki Boujemaa | Zendy; Murray Keith S. | Zendy; Hudson Timothy A. | Zendy; Robson Richard | Zendy

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Tetranuclear and Octanuclear Cobalt(II) Citrate Cluster Single Molecule Magnets

Author(s) -

Moubaraki Boujemaa,

Murray Keith S.,

Hudson Timothy A.,

Robson Richard

Publication year - 2008

Publication title -

european journal of inorganic chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.667

H-Index - 136

eISSN - 1099-0682

pISSN - 1434-1948

DOI - 10.1002/ejic.200800611

Subject(s) - chemistry , cubane , isostructural , cobalt , crystallography , moiety , cluster (spacecraft) , magnetic relaxation , molecule , magnetization , stereochemistry , relaxation (psychology) , inorganic chemistry , crystal structure , organic chemistry , social psychology , psychology , physics , quantum mechanics , computer science , magnetic field , programming language

In a follow‐up study of the cobalt(II) member 1 of a family of isostructural cubane clusters of type [C(NH 2 ) 3 ] 8 [M II 4 (cit) 4 ]·8H 2 O (cit = citrate, M = Mg, Mn, Fe, Co, Ni, Zn) by measuring AC magnetic susceptibilities, as a function of frequency, this compound clearly displays behaviour typical of magnetization reversal and slow magnetic relaxation (Δ E = 13.1 K, τ o = 8.4 × 10 –7 s). A related octanuclear cluster [Co 8 (C 4 O 7 ) 4 (H 2 O) 12 ] · 24H 2 O ( 2 ) that contains a [Co 4 (C 4 O 7 ) 4 ] cubane moiety, behaves likewise (Δ E = 20.5 K, τ o = 1.0 × 10 –7 s).(© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)

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