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Synthesis of layered MoOPO4 center dot 2H(2)O and investigation of its intercalation chemistry

Rangan, Kasthuri K and Gopalakrishnan, J (1996) Synthesis of layered MoOPO4 center dot 2H(2)O and investigation of its intercalation chemistry. In: Inorganic Chemistry, 35 (21). pp. 6080-6085.

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Official URL: http://pubs.acs.org/doi/abs/10.1021/ic960027c

Abstract

We describe in this paper the synthesis and characterization of a new layered phosphate, MoOPO4 . 2H(2)O (I), and its intercalation chemistry. The phosphate I, crystallizing in a tetragonal structure (a = 6.375(7), c = 7.80(1) Angstrom, and Z = 2) similar to that of VOPO4 . 2H(2)O, has been synthesized by the reduction of MoO2(HPO4). H2O (II) using ethylene glycol in an CH3CN medium at similar to 60 degrees C. Interestingly, I could be readily oxidized back to II using Br-2 in CH3CN at room temperature. Considering the close structural relationship existing between I and II, it is likely that the reduction and oxidation of the phosphates proceed by a topotactic mechanism. I is a novel layered host intercalating a variety of organic bases such as n-alkylamines, pyridine, and aniline, mainly through an acid-base interaction. Unlike VOPO4 . 2H(2)O, I does not exhibit reductive intercalation reactivity.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to American Chemical Society.
Department/Centre: Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited: 13 May 2011 05:36
Last Modified: 13 May 2011 05:36
URI: http://eprints.iisc.ernet.in/id/eprint/37617

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