Ferromagnetic Ordering in the Layer-Structured Pd(HS2O7)2

被引：11

作者：

Bruns, Joern ^{[1
]}

Niehaus, Oliver ^{[2
]}

Poettgen, Rainer ^{[2
]}

Wickleder, Mathias S. ^{[1
]}

机构：

[1] Carl von Ossietzky Univ Oldenburg, Inst Chem, D-26129 Oldenburg, Germany

[2] Univ Munster, Inst Anorgan & Analyt Chem, D-48149 Munster, Germany

来源：

CHEMISTRY-A EUROPEAN JOURNAL | 2014年 / 20卷 / 03期

关键词：

hydrogen disulfate; magnetochemistry; palladium; structure elucidation; CRYSTAL-STRUCTURE; MAGNETIC-PROPERTIES; TRANSITION; DISULFATE; COMPOUND; PDF2; NI; CO;

D O I：

10.1002/chem.201303617

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The reaction of (NO2)(CF3SO3) and elemental palladium in oleum (65% SO3) leads to violet single crystals of Pd(HS2O7)(2) (monoclinic, P2(1)/c, Z=2, a=927.80(9), b=682.58(7), c=920.84(9)pm, =117.756(2)degrees, wR(2)=0.0439). In the crystal structure, the Pd2+ ions show an uncommon octahedral coordination of six oxygen atoms belonging to six HS2O7- ions. The linkage of [PdO6] octahedra and the hydrogendisulfate anions leads to a layer structure, and the layers are held together by hydrogen bonds. The unusual coordination of the Pd2+ ions results in an electronic d(8) high-spin configuration, which leads to the paramagnetic behavior of the compound. Moreover, at low temperature, a ferromagnetic ordering was observed with a Curie temperature of 8K.

引用

页码：811 / 814

页数：4

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