A synthetic iron phosphate mineral, spheniscidite, [NH4]+[Fe2(OH)(H2O)(PO4)2]-H2O, exhibiting reversible dehydration

被引：0

作者：

Choudhury, Amitava ^{[1
,2
]}

Natarajan, Srinivasan ^{[1
]}

机构：

[1] Jawaharlal Nehru Ctr Adv Sci Res, Chem & Phys Mat Unit, Jakkur PO, Bangalore 560064, India

[2] Indian Inst Sci, Solid State & Struct Chem Unit, Bangalore 560012, India

来源：

JOURNAL OF CHEMICAL SCIENCES | 1999年 / 111卷 / 05期

关键词：

Open-framework materials; adsorption; reversible dehydration; antiferromagnetism; structure-directing agents;

D O I：

10.1007/BF02869118

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Spheniscidite, a synthetic iron phosphate mineral has been synthesized by hydrothermal methods. The material is isotypic with another iron phosphate mineral, leucophosphite. Spheniscidite crystallizes in the monoclinic spacegroupP2(1)/n. (a=9 & BULL;845(1),b=9 & BULL;771(3),c=9 & BULL;897(1),& beta;=102 & BULL;9 & DEG;,V=928 & BULL;5(1),Z=4,M=372 & BULL;2,d(calc)=2 & BULL;02 g cm(-3) andR=0 & BULL;02). The structure consists of a network of FeO6 octahedra vertex-linked with PO4 tetrahedra forming 8-membered one-dimensional channels in which the NH4+ ions and H2O molecules are located. The material exhibits reversible dehydration and good adsorption behaviour. Magnetic susceptibility measurements indicate that the solid orders antiferromagnetically.

引用

页码：627 / 637

页数：11

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