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Inorganic-Organic Hybrid Compounds: Synthesis, Structure, and Magnetic Properties of the First Organically Templated Iron Oxalate-Phosphite, $[C_4N_2H_1_2][Fe^I^I_4(HPO_3)_2(C_2O_4)_3]$, Possessing Infinite Fe-O-Fe Chains

Mandal, Sukhendu and Pati, Swapan K and Green, Mark A and Natarajan, Srinivasan (2005) Inorganic-Organic Hybrid Compounds: Synthesis, Structure, and Magnetic Properties of the First Organically Templated Iron Oxalate-Phosphite, $[C_4N_2H_1_2][Fe^I^I_4(HPO_3)_2(C_2O_4)_3]$, Possessing Infinite Fe-O-Fe Chains. In: Chemistry of Materials, 17 (11). pp. 2912-2917.

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Official URL: http://pubs.acs.org/doi/abs/10.1021/cm0501968

Abstract

A hydrothermal reaction of a mixture containing iron(II) oxalatedihydrate, phosphor-us acid, piperazine, and water at 150 degrees C for72 h gave light-yellow cubes of a new hybrid iron oxalate-phosphite,$[C_4N_2H_1_2][Fe^I^I_4(HPO_3)_2(C_2O_4)_3]$ , I. The structure, formed by $Fe_O_6, HPO_3$, and oxalate building units, possesses infiniteone-dimensional chains of Fe-O-Fe, formed by $Fe_2O_1_0$ dimers. The phosphite units are grafted to these chains, and the oxalate moietiesbond with the iron center through in-plane and out-of-planeconnectivity forming a three-dimensional structure with intersectingchannels. The organic amine molecule occupies the middle of thechannels. The connectivity between the phosphite units and the Fe-O-Fechains resembles the tancoite structure. Magnetic investigations revealthat the iron is present in the +2 oxidation state and ordersantiferromagnetically.

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: 18 Jul 2005
Last Modified: 25 Jan 2012 10:26
URI: http://eprints.iisc.ernet.in/id/eprint/3341

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