Phase Control in the Synthesis of Magnetic Iron Sulfide Nanocrystals From a Cubane-Type Fe-S Cluster

被引：76

作者：

Vanitha, P. V.

O'Brien, Paul ^{[1
]}

机构：

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

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2008年 / 130卷 / 51期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1021/ja8078187

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Phase control has been achieved in the synthesis of magnetic iron sulfide nanocrystals by the use of a single source precursor, a cubane type Fe-S cluster, bis(tetra-n-butylammonium) tetrakis[benezenethiolato- mu(3)-Sulfido-iron]. This cluster cleanly decomposes in alkylamines to yield nanocrystals whose composition, structure, and dimensions are dependent on the temperature employed. At low temperatures, pyrrhotite type Fe7S8 nanocrystals with an average diameter of 5.6 nm are obtained. Higher temperatures yield griegite-Fe3S4 nanocrystals whose dimensions are tunable in the range 2.5-4.5 nm. All the obtained nanocrystals are superparamagnetic at room temperature.

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页码：17256 / +

页数：3

相关论文

共 23 条

[11] Ultra-large-scale syntheses of monodisperse nanocrystals [J].

Park, J ;

An, KJ ;

Hwang, YS ;

Park, JG ;

Noh, HJ ;

Kim, JY ;

Park, JH ;

Hwang, NM ;

Hyeon, T .

NATURE MATERIALS, 2004, 3 (12) :891-895

[12] Electrical and magnetic properties of sulfides [J].

Pearce, Carolyn I. ;

Pattrick, Richard A. D. ;

Vaughan, David J. .

SULFIDE MINERALOLGY AND GEOCHEMISTRY, 2006, 61 :127-180

[13] Iron sulfides from magnetotactic bacteria:: Structure, composition, and phase transitions [J].

Pósfai, M ;

Buseck, PR ;

Bazylinski, DA ;

Frankel, RB .

AMERICAN MINERALOGIST, 1998, 83 (11-12) :1469-1481

[14] The preparation and phase transition of nanocrystalline iron sulfides via toluene-thermal process [J].

Qian, XF ;

Zhang, XM ;

Wang, C ;

Yie, Y ;

Wang, WZ ;

Qian, YT .

MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 1999, 64 (03) :170-173

[15] EXTRUSION OF FE2S2 AND FE4S4 CORES FROM ACTIVE-SITES OF FERREDOXIN PROTEINS [J].

QUE, L ;

HOLM, RH ;

MORTENSON, LE .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1975, 97 (02) :463-464

[16]

Rao C. N. R., 1976, PROGR SOLID STATE CH, V10, P207, DOI DOI 10.1016/0079-6786(76)90009-1

[17] Synthetic analogues of the active sites of iron-sulfur proteins [J].

Rao, PV ;

Holm, RH .

CHEMICAL REVIEWS, 2004, 104 (02) :527-559

[18] The preparation of magnetic nanoparticles for applications in biomedicine [J].

Tartaj, P ;

Morales, MD ;

Veintemillas-Verdaguer, S ;

González-Carreño, T ;

Serna, CJ .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2003, 36 (13) :R182-R197

[19]

THOMAS PJ, 2007, NANOCRYSTAL SYNTHESI

[20]

Thompson P, 2007, NEGLECTED CHILDREN AND THEIR FAMILIES, 2ND EDITION, P1, DOI 10.1002/9783527611362.ch1