Template synthesis and single-molecule magnetism properties of a complex with spin S=16 and a [Mn8O8]8+ saddle-like core

被引:87
作者
Tasiopoulos, AJ
Wernsdorfer, W
Moulton, B
Zaworotko, MJ
Christou, G [1 ]
机构
[1] Univ Florida, Dept Chem, Gainesville, FL 32611 USA
[2] Univ S Florida, Dept Chem, Tampa, FL 33620 USA
[3] CNRS, Lab Louis Neel, F-38042 Grenoble, France
关键词
GROUND-STATE; MAGNETIZATION; CLUSTER;
D O I
10.1021/ja0385134
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The compound [CeIVMn8IIIO8(O2CMe)12(H2O)4]·4H2O (1·4H2O) has been obtained from a template synthesis involving the reaction of the chain polymer {[MnIII(OH)(O2CMe)2]·(MeCO2H)·(H2O)}n (3) with Ce(IV). Compound 1 contains a Mn8III 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. Copyright © 2003 American Chemical Society.
引用
收藏
页码:15274 / 15275
页数:2
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