Rare nuclearities, new structural motifs, and slow magnetization relaxation phenomena in manganese cluster chemistry: A Mn₁₅Na₂ cage from the use of triethanolamine/pivalate/azide ¡°blend¡±

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• 作者：Dimitris I. Alex ; ropoulos ; Eleni C. Mazarakioti ; Simon J. Teat ; Theocharis C. Stamatatos
• 关键词：Azides ; Carboxylates ; Manganese ; Pentadecanuclearity ; Triethanolamine ; Slow magnetization relaxation
• 刊名：Polyhedron
• 出版年：2013
• 出版时间：12 November, 2013
• 年：2013
• 卷：64
• 期：Complete
• 页码：91-98
• 全文大小：1027 K

文摘

The combination of azide, carboxylate (pivalate and in situ generated formate) and triethanolamine ligands in higher oxidation state Mn cluster chemistry has afforded a new pentadecanuclear, mixed-valence(II,III) compound with a large S and a negative D value. The unprecedented [Mn^II₂Mn^III₁₃] cluster exhibits frequency-dependent out-of-phase (¦Ö_M¡å) signals, characteristics of the superparamagnetic-like slow relaxation of an SMM.