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$A_2Ln_2Ti_3O_{10}$ (A = potassium or rubidium; Ln = lanthanum or rare earth): a new series of layered perovskites exhibiting ion exchange

Gopalakrishnan, J and Bhat, Vasudeva (1987) $A_2Ln_2Ti_3O_{10}$ (A = potassium or rubidium; Ln = lanthanum or rare earth): a new series of layered perovskites exhibiting ion exchange. In: Inorganic Chemistry, 26 (26). pp. 4299-4301.

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Abstract

Several layered perovskites $A_2Ln_2Ti_3O_{10}$ (A = K or Rb; Ln = rare earth) and their monohydrates, crystg. in tetragonal structures related to ${Sr_4Ti_3O_10}$, were prepd. The alkali ions in $K_2Ln_2Ti_3O_{10}$ are topochem. exchanged by protons in aq. acid or by other alkali ions in molten salts. $H_2Ln_2Ti_3O_{10}$ also adopt a tetragonal structure similar to the parent oxides. Dehydrated $H_2La_2Ti_3O_{10}$ crystallizes at 1000 giving a new defect perovskite, $La_2/3TiO_3$, possessing a tetragonal structure.

Item Type: Journal Article
Additional Information: The copyright belongs to The American Chemical Society
Department/Centre: Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited: 12 Mar 2008
Last Modified: 07 Oct 2010 07:37
URI: http://eprints.iisc.ernet.in/id/eprint/13263

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