Mandal, Sukhendu ; Pati, Swapan Kumar ; Green, Mark A. ; Natarajan, Srinivasan (2005) Inorganic- organic hybrid compounds: synthesis, structure, and magnetic properties of the first organically templated iron oxalate- phosphite,[C4N2H12][FeII4(HPO3)2(C2O4)3], possessing infinite Fe-O-Fe chains Chemistry of Materials, 17 (11). pp. 2912-2917. ISSN 0897-4756
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Official URL: http://pubs.acs.org/doi/abs/10.1021/cm0501968
Related URL: http://dx.doi.org/10.1021/cm0501968
Abstract
A hydrothermal reaction of a mixture containing iron(II) oxalate dihydrate, phosphorus acid, piperazine, and water at 150°C for 72 h gave light-yellow cubes of a new hybrid iron oxalate-phosphite, [C4N2H12][FeII4(HPO3)2(C2O4)3], I. The structure, formed by FeO6, HPO3, and oxalate building units, possesses infinite one-dimensional chains of Fe-O-Fe, formed by Fe2O10 dimers. The phosphite units are grafted to these chains, and the oxalate moieties bond with the iron center through in-plane and out-of-plane connectivity forming a three-dimensional structure with intersecting channels. The organic amine molecule occupies the middle of the channels. The connectivity between the phosphite units and the Fe-O-Fe chains resembles the tancoite structure. Magnetic investigations reveal that the iron is present in the +2 oxidation state and orders antiferromagnetically.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Chemical Society. |
| ID Code: | 27782 |
| Deposited On: | 11 Dec 2010 07:55 |
| Last Modified: | 04 Mar 2011 09:54 |
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