Template Synthesis and Single-Molecule Magnetism Properties of a Complex with Spin S = 16 and a [Mn8O8]8+ Saddle-Like Core

详细信息    查看全文

• 作者：Anastasios J. Tasiopoulos ; Wolfgang Wernsdorfer ; Brian Moulton ; Michael J. Zaworotko ; and George Christou
• 刊名：Journal of the American Chemical Society
• 出版年：2003
• 出版时间：December 17, 2003
• 年：2003
• 卷：125
• 期：50
• 页码：15274 - 15275
• 全文大小：105K
• 年卷期：v.125,no.50(December 17, 2003)
• ISSN：1520-5126

文摘

The compound [Ce^IVMn^III₈O₈(O₂CMe)₁₂(H₂O)₄]·4H₂O (1·4H₂O) has been obtained from a template synthesis involving the reaction of the chain polymer {[Mn^III(OH)(O₂CMe)₂] ·(MeCO₂H)·(H₂O)}_n (3) with Ce(IV). Compound 1 contains a Mn^III₈ loop inside which is held the Ce(IV) ion by the bridging oxide ions. Magnetization and magnetic susceptibility studies establish that 1 has an S = 16 spin ground state, the largest yet for a Mn cluster, and displays the slow magnetization relaxation and hysteresis behavior of a single-molecule magnet (SMM). It is thus the highest spin Mn SMM discovered to date.