A novel undecametallic iron(III) cluster with an S=11/2 spin ground state

被引：55

作者：

Jones, LF

Brechin, EK

Collison, D

Helliwell, M

Mallah, T

Piligkos, S

Rajaraman, G

Wernsdorfer, W

机构：

[1] Univ Manchester, Dept Chem, Manchester M13 9PL, Lancs, England

[2] CNRS, UMR 8613, Lab Chim Inorgan, F-91405 Orsay, France

[3] CNRS, Lab Louis Neel, F-38042 Grenoble, France

来源：

INORGANIC CHEMISTRY | 2003年 / 42卷 / 21期

关键词：

D O I：

10.1021/ic034654v

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The reaction of [NEt4](2)[Fe2OCl6] with sodium benzoate, 4,6-dimethyl-2-hydroxypyrimidine (dmhp), and 1,1,1-tris(hydroxymethyl)ethane (H(3)thme) gives the undecametallic compound [NEt4]-[Fe11O4(O2CPh)(10)(thme)(4)(dmhP)(2)Cl-4]. X-ray crystallography, EPR spectroscopy, bulk magnetic susceptibility studies, and low-temperature single-crystal magnetic measurements were used to characterize the compound. Magnetic measurements indicate an S = 11/2 ground state with the parameters g = 2.03 and D = -0.46 cm(-1). Single-crystal magnetic studies show hysteresis of molecular origin at T < 1.2 K with fast quantum mechanical tunneling at zero field.

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页码：6601 / 6603

页数：3

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