Antiferromagnetic Transition in a Novel Star-shaped High-spin Fe(III) Tetranuclear Cluster from a Mononuclear Coordination Anion Featuring π-Extended Schiff Base Ligands

A novel star-shaped high-spin Fe(III) tetranuclear cluster was unexpectedly obtained by the reaction of an [FeIII(phsal)2]− anion with an Fe(II) coordination cation (H2phsal: N-(2-hydroxyphenyl)salicylaldimine). Despite a star-shaped Fe(III) tetranuclear structure similar to reported Fe(III) single...

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Bibliographic Details
Published in:Chemistry letters 2015-06, Vol.44 (6), p.840-842
Main Authors: Takahashi, Kazuyuki, Kawamukai, Kiko, Mochida, Tomoyuki, Sakurai, Takahiro, Ohta, Hitoshi, Yamamoto, Takashi, Einaga, Yasuaki, Mori, Hatsumi, Shimura, Yasuyuki, Sakakibara, Toshiro
Format: Article
Language:English
Subjects:
Anions
Antiferromagnetism
Clusters
Coordination compounds
Coupling (molecular)
Exchange
Ligands
Magnets
Schiff bases
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Summary:A novel star-shaped high-spin Fe(III) tetranuclear cluster was unexpectedly obtained by the reaction of an [FeIII(phsal)2]− anion with an Fe(II) coordination cation (H2phsal: N-(2-hydroxyphenyl)salicylaldimine). Despite a star-shaped Fe(III) tetranuclear structure similar to reported Fe(III) single molecule magnets, the present compound exhibited a bulk antiferromagnetic transition at 0.6 K due to a magnetic exchange coupling through intercluster π-stacking interactions.
ISSN:0366-7022
1348-0715
DOI:10.1246/cl.150196