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Synthesis, structure and magnetic properties of the polyoxovanadate cluster Zn-2(NH2(CH2)(2)NH2)(5)]{Zn(NH2(CH2)(2)NH2)(2)}(2){V18O42(H2O)\ ]center dot xH(2)O (x similar to 12), possessing a layered structure

Natarajan, Srinivasan and Narayan, KS and Pati, SK (2006) Synthesis, structure and magnetic properties of the polyoxovanadate cluster Zn-2(NH2(CH2)(2)NH2)(5)]{Zn(NH2(CH2)(2)NH2)(2)}(2){V18O42(H2O)\ ]center dot xH(2)O (x similar to 12), possessing a layered structure. In: International Conference on Recent Developments in Metal Oxides and Related Materials, Jan 09-11, 2006, Bangalore, India, pp. 57-65.

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Official URL: http://onlinelibrary.wiley.com/doi/10.1002/chin.20...

Abstract

A hydrothermal reaction of a mixture of ZnCl2, V2O5, ethylenediamine and water gave rise to a layered poly oxovanadate material. clusters. These clusters, with all the vanadium ions in the +4 state, are connected together through Zn(NH2(CH2)(2)NH2)(2) linkers forming a two-dimensional structure. The layers are also separated by distorted trigonal bipyramidal [Zn-2(NH2(CH2)(2)NH2)(5)] complexes. The Structure, thus, presents a dual role for the Zn-ethylenediamine complex. The magnetic susceptibility studies indicate that the interactions between the V centres in I are predominantly antiferromagnetic in nature and the compound shows highly frustrated behaviour. The magnetic properties are compared to the theoretical calculations based oil the Heisenberg model, in addition to correlating to the structure. Crystal data for the complexes are presented.

Item Type: Conference Paper
Additional Information: Copyright of this article belongs to John Wiley & Sons.
Keywords: polyoxovanadate clusters; layerd structure; Zn-ethylenediamine complex; frustrated behaviour .
Department/Centre: Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited: 29 Oct 2010 07:24
Last Modified: 29 Oct 2010 07:24
URI: http://eprints.iisc.ernet.in/id/eprint/32810

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