Hostname: page-component-78c5997874-j824f Total loading time: 0 Render date: 2024-11-05T03:36:04.689Z Has data issue: false hasContentIssue false
  • English
  • Français

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
Get access Rights & Permissions [Opens in a new window]

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

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

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