通过{Fe2(hpdta)}单元对[Fe(H2O)6](3+)进行形式上的封装，得到了一个具有S = 13/2的Fe(III)9氧簇体系，该体系表现出磁滞现象。

Formal encapsulation of [Fe(H2O)6](3+) by {Fe2(hpdta)} units gives a system of S= 13/2 Fe(III)9 oxo clusters showing magnetic hysteresis.

作者信息

Schmitt Wolfgang, Anson Christopher E, Wernsdorfer Wolfgang, Powell Annie K

机构信息

Institut fur Anorganische Chemie, Universitat Karlsruhe, Engesserstr. 15, 76128 Karlsruhe, Germany.

出版信息

Chem Commun (Camb). 2005 Apr 28(16):2098-100. doi: 10.1039/b416766j. Epub 2005 Mar 4.

DOI:10.1039/b416766j

PMID:15846412

Abstract

Under solvothermal conditions the unprecedented nonanuclear Fe(III) aggregate [Fe9(mu3-O)4(mu-OH)4(hpdta)4]5- is formed through the formal encapsulation of [Fe(H2O)6]3+ by four [Fe2(hpdta)(H2O)2]+ units: the aggregates have ground state spins of S= 13/2 while the observed hysteresis below 1.8 K results from inter-cluster antiferromagnetic coupling.

摘要

在溶剂热条件下，通过四个[Fe2(hpdta)(H2O)2]+单元对[Fe(H2O)6]3+进行形式上的包封，形成了前所未有的九核Fe(III)聚集体[Fe9(μ3-O)4(μ-OH)4(hpdta)4]5-：这些聚集体的基态自旋为S = 13/2，而在1.8 K以下观察到的磁滞现象是由簇间反铁磁耦合引起的。