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A square planar [NiCl4]2− ion in the layered double hydroxide Al2Li(OH)6 [NiCl4]1/2

Published online by Cambridge University Press:  09 July 2018

K. Okada ,
F. Matsushita  and
S. Hayashi
K. Okada
Affiliation:
Department of lnorganic Materials, Tokyo Institute of Technology, Tokyo 152, Japan
F. Matsushita
Affiliation:
Department of lnorganic Materials, Tokyo Institute of Technology, Tokyo 152, Japan
S. Hayashi
Affiliation:
Department of lnorganic Materials, Tokyo Institute of Technology, Tokyo 152, Japan
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Abstract

The layered double hydroxide (LDH) Al2Li(OH)6[NiCl4]1/2 was synthesized by anion exchange of Al2Li(OH)6(NO3) and the coordination structure of [NiCl4]2− in the interlayers was investigated. The LDH had a hexagonal cell with a = 5.06 and c = 23.06 Å. Since the basal spacing of one layer was 7.7 Å, the interlayer distance was calculated to be 2.9 Å and was too narrow for the usual tetrahedral NiCl4 structure. From extended X-ray absorption fine structure (EXAFS) measurements, the first neighbour Ni-Cl distances in the LDH were 2.10 Å which was compatible with four-fold coordination. Since the electron spin resonance (ESR) spectrum of the LDH showed no absorption, the [NiCl4]2− structure was considered to be square planar, rather than the usual tetrahedral structure in the interlayers of LDH.

Type
Research Article
Information
Clay Minerals , Volume 32 , Issue 2 , June 1997 , pp. 299 - 305
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1997

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References

Cavani, F., Trifiro, F. & Vaccari, A. (1991) Hydrotalcitetype anionic clays: preparation, properties and application. Catal. Today, 11, 173–301.Google Scholar
Chisem, I.C. & Jones, W. (1994) Ion-exchange properties of lithium Aluminium layered double hydroxides. J. Mat. Chem. 4, 1737–1744.Google Scholar
De Roy, A., Forano C, El Malki, K. & Besse, J.P. (1992) Pp. 108 – 169 in: Expanded Clays and other Microporous Solids Vol. 2. (Ocelli, M.L. & Robson, H., editors).Van Nostrand Reinhold.Google Scholar
Dutta, P.K. & Puri, M. (1989) Anion exchange in lithium aluminium hydroxides. J. Phys. Chem. 93, 376–38l. Henslee, Cisar & Poulsen. JCPDS card numbers 31-700 and 31-704.Google Scholar
Lopez-Salinas, E. & Ono, Y. (1993) Intercalation chemistry of a Mg–AI layered double hydroxide ion exchanged with complex MCl2- 4 (M=Ni,Co) ions from organic media. Microporous Mater. 1, 33–42.Google Scholar
Mascolo, G. (1986) Thermal stability of lithium aluminium hydroxy salts. Thermochim. Acta, 102, 67–73.CrossRefGoogle Scholar
Miyata, S. (1983) Anion-exchange properties of hydrotalcite- like compounds. Clays Clay Miner. 31, 305–311.Google Scholar
Miyata, S. & Hirose, T. (1978) Adsorption of N2, O2, CO2 and H2O on hydrotalcite-like system: Mg2+-Al3+-[Fe(CN)6]4- . Clays Clay Miner. 26, 441–447.CrossRefGoogle Scholar
Nicholls, D. (1973) Nickel. Pp. 1109-1161 in: Comprehensée Inorganic Chemistry, Vol. 3 (Bailar, J.C., Emeleus, H.J., Nyholm, R. & Trotman-Dickenson, A.F., editors). Pergamon Press, Oxford, England.Google Scholar
Okada, K., Mimura, K. & Nogi, S. (1994) Synthesis of hydrotalcite-type layered compounds M(II)1-xInx(OH)2(NO3)x.nH2O (M=Ni,Mg,Co,Ca). J. Clay Sci. Soc. 34, 40–47.Google Scholar
Poeppelmeier, K.R. & Hwu, S.-J. (1987) Synthesis of lithium dialuminate by salt imbibition. Inorg. Chem. 26, 3297–3302.CrossRefGoogle Scholar
Serna, C.J., Rendon, J.L. & lglesias, J.E. (1982) Crystalchemical study of layered [A12Li(OH)6]+X.nH2O. Clays Clay Miner. 30, 180–184.Google Scholar
Wells, A.F. (1975) Structural Inorganic Chemistry. Oxford Univ. Press, London, England.Google Scholar