AILaNb2O7:A new series of layered perovskites exhibiting ion exchange and intercalation behaviour

Gopalakrishnan, J and Bhat, Vasudeva and Raveau, B (1987) AILaNb2O7:A new series of layered perovskites exhibiting ion exchange and intercalation behaviour. In: Materials Research Bulletin, 22 (3). pp. 413-417.

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Abstract

A new series of layered perovskite oxides, AILaNb2O7 (A = Li, Na, K, Rb, Cs, NH4) constituting n = 2 members of the family A A′n−1BnO3n+1, has been prepared. Their structure consists of double perovskite slabs interleaved by A atoms. Hydrated HLaNb2O7 is formed by topotactic proton exchange of the A atoms in ALaNb2O7 (A = K, Rb, Cs). The hydrate readily loses water to give anhydrous HLaNb2O7 which is isostructural with RbLaNb2O7. HLaNb2O7 exhibits Bronsted acidity forming intercalation compounds with bases such as n-octylamine and pyridine.

Item Type:	Journal Article
Additional Information:	Copyright of this article belongs to Elsevier Science.
Department/Centre:	Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited:	22 Jul 2009 06:05
Last Modified:	19 Sep 2010 05:38
URI:	http://eprints.iisc.ernet.in/id/eprint/21672

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