Molecule-based room-temperature magnets: Catalytic role of V(III) in the synthesis of vanadium-chromium Prussian blue analogues

被引:91
作者
Garde, R
Villain, F
Verdaguer, M [1 ]
机构
[1] Univ Paris 06, CNRS, Lab Chim Inorgan & Mat Mol, Unite Associee 7071, F-75252 Paris 05, France
[2] Ctr Univ Orsay, Utilisat Rayonnement Electromagnet Lab, F-91898 Orsay, France
关键词
D O I
10.1021/ja020528z
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A new synthetic procedure to obtain vanadium-chromium Prussian blue analogues is presented, using controlled amounts of V-III in solution during the synthesis. The vanadium and chromium oxidation states and the chemical environment of the metal ions in the solids are characterized by infrared and X-ray absorption spectroscopies. The presence of weak amounts of V-III during the synthesis provides materials which are better organized and present reproducible Curie temperature and magnetization at saturation in agreement with the observed V/Cr stoichiometry.
引用
收藏
页码:10531 / 10538
页数:8
相关论文
共 31 条
[11]  
Hatlevik O, 1999, ADV MATER, V11, P914, DOI 10.1002/(SICI)1521-4095(199908)11:11<914::AID-ADMA914>3.0.CO
[12]  
2-T
[13]   Sol-gel synthesis of KVII[CrIII(CN)6]•2H2O:: A crystalline molecule-based magnet with a magnetic ordering temperature above 100 °C [J].
Holmes, SM ;
Girolami, GS .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1999, 121 (23) :5593-5594
[14]   HIGH-PRESSURE NMR KINETICS .23. WATER EXCHANGE ON HEXAAQUAVANADIUM(III) - A VARIABLE-TEMPERATURE AND VARIABLE-PRESSURE O-17-NMR STUDY AT 1.4 AND 4.7 TESLA [J].
HUGI, AD ;
HELM, L ;
MERBACH, AE .
HELVETICA CHIMICA ACTA, 1985, 68 (02) :508-521
[15]  
JORDAN RB, 1991, REACTION MECH INORGA, P167
[16]  
KAHN O, 1995, NATURE, V378, P667, DOI 10.1038/378667a0
[17]   VANADIUM (2) CHEMISTRY .I. MAGNETIC SPECTROSCOPIC INVESTIGATIONS OF SULPHATE AND DOUBLE SULPHATES [J].
LARKWORTHY, LF ;
MURPHY, JM ;
PATEL, KC ;
PHILLIPS, DJ .
JOURNAL OF THE CHEMICAL SOCIETY A -INORGANIC PHYSICAL THEORETICAL, 1968, (12) :2936-+
[18]   ETHANOLATES AND HETEROCYCLIC AMINE COMPLEXES OF VANADIUM(II) [J].
LARKWORTHY, LF ;
ODONOGHUE, MW .
INORGANICA CHIMICA ACTA-ARTICLES, 1983, 71 (MAY) :81-86
[19]   EXTENDED X-RAY ABSORPTION FINE-STRUCTURE ANALYSIS OF INTER-ATOMIC DISTANCES, COORDINATION NUMBERS, AND MEAN RELATIVE DISPLACEMENTS IN DISORDERED ALLOYS [J].
LENGELER, B ;
EISENBERGER, P .
PHYSICAL REVIEW B, 1980, 21 (10) :4507-4520
[20]   A ROOM-TEMPERATURE MOLECULAR ORGANIC BASED MAGNET [J].
MANRIQUEZ, JM ;
YEE, GT ;
MCLEAN, RS ;
EPSTEIN, AJ ;
MILLER, JS .
SCIENCE, 1991, 252 (5011) :1415-1417