Synthesis, structure and magnetic characterization of a new phosphate K1.84Fe1.42Nb0.58(PO4)3 with the langbeinite-type structure

被引：4

作者：

Babaryk, Artem A. ^{[1
]}

Zatovsky, Igor V. ^{[1
]}

Slobodyanik, Nikolay S. ^{[1
]}

Ogorodnyk, Ivan V. ^{[1
]}

机构：

[1] Natl Taras Shevchenko Univ Kiev, Dept Inorgan Chem, UA-01033 Kiev, Ukraine

来源：

ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES | 2008年 / 63卷 / 03期

关键词：

phosphates; crystal structure; langbeinite; magnetic measurements;

D O I：

10.1515/znb-2008-0321

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A new complex phosphate K1.84Fe1.42Nb0.58(PO4)(3) has been synthesized by the self-flux technique. The X-ray single crystal structure and magnetic properties were studied. The compound crystallizes in the cubic system with space group P2(1)3 (a = 9.9404(10) angstrom) and belongs to the langbeinite structure type. The structure contains [M2P3O18] building units. "Closed" fragments [M8P9O60] provide space for location of two potassium atoms. Antiferromagnetic interactions were detected at low temperatures which originate from superexchange through a M(1)-O-P-O-M(2) pathway with corresponding J = -5.5(1) cm(-1). The relationship between the UV/vis absorption and the structure is discussed.

引用

页码：345 / 348

页数：4

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