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Layered Tungsten Oxide-Based Hybrid Materials Incorporating Transition Metal Ions

Published online by Cambridge University Press:  01 February 2011

Bridget Ingham ,
S. V. Chong  and
Jeff L. Tallon
Bridget Ingham
Affiliation:
Victoria University of Wellington, P.O. Box 600, Wellington, NEW ZEALAND
S. V. Chong
Affiliation:
Industrial Research Limited, P.O. Box 31–310, Lower Hutt, NEW ZEALAND
Jeff L. Tallon
Affiliation:
Victoria University of Wellington, P.O. Box 600, Wellington, NEW ZEALAND Industrial Research Limited, P.O. Box 31–310, Lower Hutt, NEW ZEALAND
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Abstract

Layered organic-inorganic hybrid materials based on tungsten oxide as the inorganic framework have been synthesised to include transition metal ions. The resulting materials have been characterised using a number of techniques. X-ray diffraction shows an interlayer expansion with increasing alkyl length. Infrared vibrational spectra of manganese tungstate compounds indicate the organic amine molecules are neutrally charged, and the inorganic framework is unaltered as one varies the organic intercalate. The magnetic behaviour of the materials has also been explored using a SQUID magnetometer. In the manganese tungstate hybrids an antiferromagnetic (AF) transition is observed, which decreases in temperature as the inorganic interlayer spacing is increased. A nickel tungstate hybrid sample, on the other hand, displays a ferromagnetic transition, which we attribute to a canted AF phase below 15 K. In all cases studied, the behaviour can be mapped to an effective moment (Peff) per transition metal ion, which agrees well with theoretical and literature values for other transition metal oxides.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 847: Symposium EE – Organic/Inorganic Hybrid Materials , 2004 , EE9.31
Copyright
Copyright © Materials Research Society 2005

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References

REFERENCES

1. Hagenmuller, P., “Tungsten Bronzes, Vanadium Bronzes and Related Compounds”, Comprehensive Inorganic Chemistry ed. Bailar, J.C. Jr, Emeleus, H.J., Nyholm, R., Trotman-Dickenson, A.F. (Pergamon, Oxford 1973) pp. 541–563.Google Scholar
2. Brown, B.W. and Banks, E., J. Am. Chem. Soc. 76 963 (1954).Google Scholar
3. Ahn, K.S., Nah, Y.C., Sung, Y.E., Cho, K.Y., Shin, S.S. and Park, J.K., Appl. Phys. Lett. 81 3930 (2002).Google Scholar
4. Mourey, B., Hareng, M., Dumont, B., Desseine, J. and Figlarz, M., Eurodisplay Proceedings (1984) p. 223.Google Scholar
5. Guo, J.D., Reis, K.P. and Whittingham, M.S., Solid State Ionics 53 305 (1992).Google Scholar
6. Szymanski, J.T. and Roberts, A.C., Can. Mineralogist 22 681 (2004).Google Scholar
7. Ingham, B., Chong, S.V. and Tallon, J.L. in Self Assembled Nanostructured Materials, ed. Lu, Y., Brinker, C.J., Antonietti, M. and Bai, C. (Mater. Res. Soc. Proc. 775, San Francisco, CA, 2003) pp. 165–171.Google Scholar
8. Li, K.C. and Wang, C.Y., Tungsten (Reinhold Publishing, 1947) pp. 253–260.Google Scholar
9. Krustev, S., Ivanov, K. and Klissurski, D., J. Alloys Compounds 182 189 (1992).Google Scholar
10. Belitto, C., Federici, F., Colapietro, M., Portalone, G. and Caschera, D., Inorg. Chem. 41 709 (2004).Google Scholar
11. van Uittert, L.G., Sherwood, R.C., Williams, H.J., Rubin, J.J. and Bonner, W.A., J. Phys. Chem. Solids 25 1447 (1964).Google Scholar
12. Ashcroft, N.W. and Mermin, N.D., Solid State Physics (Brooks Cole, 1976) pp. 656–658.Google Scholar