2004
DOI: 10.1002/ange.200460636
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Building Molecular Minerals: All Ferric Pieces of Molecular Magnetite

Abstract: In den Bildunterschriften zu Figure Die Autoren entschuldigen sich für dieses Versehen.

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Cited by 20 publications
(8 citation statements)
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“…32 Susceptibility data for both Fe 9 heia and Fe 17 py indicate the presence of antiferromagnetic interactions, with low‐temperature maxima suggesting large spin ground states. For Fe 9 heia the best fit was obtained for S =25/2, g =1.99, and D =−0.07 cm −1 while for Fe 17 py magnetic data were initially fitted to an S =35/2 ground state with D =+0.33 cm −1 ;32a later measurements confirmed the ground‐state value but suggested a weak easy‐axis type anisotropy ( D <0) 32b. More interestingly, the magnetic moment per volume unit obtained considering the volume of the inorganic core alone provides values which are close to those of bulk magnetite (see Table 1).…”
Section: Molecular Nanomagnets: Structures and Propertiesmentioning
confidence: 99%
“…32 Susceptibility data for both Fe 9 heia and Fe 17 py indicate the presence of antiferromagnetic interactions, with low‐temperature maxima suggesting large spin ground states. For Fe 9 heia the best fit was obtained for S =25/2, g =1.99, and D =−0.07 cm −1 while for Fe 17 py magnetic data were initially fitted to an S =35/2 ground state with D =+0.33 cm −1 ;32a later measurements confirmed the ground‐state value but suggested a weak easy‐axis type anisotropy ( D <0) 32b. More interestingly, the magnetic moment per volume unit obtained considering the volume of the inorganic core alone provides values which are close to those of bulk magnetite (see Table 1).…”
Section: Molecular Nanomagnets: Structures and Propertiesmentioning
confidence: 99%
“…Polynuclear iron coordination clusters have received considerable attention since the discovery that they can serve as models for protein active sites [ 1 ] and exhibit interesting magnetic properties including slow magnetization relaxation and quantum tunneling phenomena [ 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 ]. Tremendous efforts have been devoted to the development of new synthetic routes to increase the nuclearity of such clusters.…”
Section: Introductionmentioning
confidence: 99%
“…32 Suszeptibilitätsdaten für Fe 9 heia und Fe 17 py lassen das Vorhandensein antiferromagnetischer Wechselwirkungen erkennen, deren Tieftemperaturmaxima auf große Spingrundzustände schließen lassen. Für Fe 9 heia wurde der beste Angleich mit S =25/2, g =1.99 und D =−0.07 cm −1 erzielt, während für Fe 17 py die magnetischen Daten zunächst mit einem Grundzustand S =35/2 mit D =+0.33 cm −1 angeglichen wurden;32a spätere Messungen bestätigten den Grundzustand, ergaben aber eine schwächere Anisotropie entlang der leichten Achse ( D <0) 32b. Interessant ist vor allem, dass das magnetische Moment pro Volumeneinheit, das allein unter Berücksichtigung des Volumens des anorganischen Kern erhalten wurde, sehr ähnliche Werte wie für Bulk‐Magnetit annimmt (siehe Tabelle 1).…”
Section: Molekulare Nanomagnete: Strukturen Und Eigenschaftenunclassified