The tetrairon(III) clusters Fe4(L)2(dpm)6 where Hdpm = dipivaloylmethane and H3L = MeC(CH2OH)3 or PhC(CH2OH)3 were obtained by site-specific replacement of the six methoxide bridges in Fe4(OMe)6(dpm)6. As compared with the parent compd., the new clusters show a much larger anisotropy in the S = 5 ground spin state (D/kB∼-0.6 K vs. -0.3 K) and a higher energy barrier to the reversal of the magnetization.
Inter–multiplet Transitions in the Fe4 Magnetic Cluster / T., Guidi; G., Amoretti; R., Caciuffo; S., Carretta; Cornia, Andrea; C. D., Frost; E., Liviotti. - In: JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS. - ISSN 0304-8853. - STAMPA. - 272-276:(2004), pp. e777-e778. [10.1016/j.jmmm.2003.12.1113]
Inter–multiplet Transitions in the Fe4 Magnetic Cluster
CORNIA, Andrea;
2004
Abstract
The tetrairon(III) clusters Fe4(L)2(dpm)6 where Hdpm = dipivaloylmethane and H3L = MeC(CH2OH)3 or PhC(CH2OH)3 were obtained by site-specific replacement of the six methoxide bridges in Fe4(OMe)6(dpm)6. As compared with the parent compd., the new clusters show a much larger anisotropy in the S = 5 ground spin state (D/kB∼-0.6 K vs. -0.3 K) and a higher energy barrier to the reversal of the magnetization.Pubblicazioni consigliate
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