Discrete Tetrairon(III) Cluster Exhibiting a Square-Planar Fe4(μ4-O) Core: Structural and Magnetic Properties

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• 作者：Mariappan Murali ; Sanjit Nayak ; Jos Snchez Costa ; Joan Ribas ; Ilpo Mutikainen ; Urho Turpeinen ; Martin Clmancey ; Ricardo Garcia-Serres ; Jean-Marc Latour ; Patrick Gamez ; Genevive Blondin ; Jan Reedijk
• 刊名：Inorganic Chemistry
• 出版年：2010
• 出版时间：March 1, 2010
• 年：2010
• 卷：49
• 期：5
• 页码：2427-2434
• 全文大小：878K
• 年卷期：v.49,no.5(March 1, 2010)
• ISSN：1520-510X

文摘

The aerobic reaction of the Schiff-base ligand N-(benzimidazol-2-yl)salicylaldimine (Hbisi) with iron(II) perchlorate in methanol leads to the formation of the remarkable coordination compound [Fe₄(μ₄-O)(μ-MeO)₄(bisi)₄](ClO₄)₂·4MeOH (1), whose single-crystal X-ray structure reveals the presence of a discrete Fe^III₄(μ₄-O) core. Magnetic and Mssbauer studies both show that the exchange interaction within the square tetranuclear iron(III) unit is dominated by the central bridging μ₄-oxido ligand, the involvement of the μ-methoxido bridges being negligible.