The first one-dimensional iron phosphite - Phosphate, [Fe III(2,2â?²-bipyridine)(HPO3)(H2PO 4)]: Synthesis, structure, and magnetic properties

Mandal, S., Pati, S.K., Green, M.A., Natarajan, S. (2005) The first one-dimensional iron phosphite - Phosphate, [Fe III(2,2â?²-bipyridine)(HPO3)(H2PO 4)]: Synthesis, structure, and magnetic properties. Chemistry of Materials, 17 (3). pp. 638-643. ISSN 0897-4756. (doi:10.1021/cm049064p) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

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Abstract

A hydrothermal reaction of a mixture containing iron powder, phosphorus acid, 2,2�-bipyridine, and water at 125 °C for 7 days gave colorless rods of a new hybrid iron phosphite-phosphate, [FeIII(2,2�- bipyridne)(HPO3)(H2PO4)], I. The structure consists of an edge-shared four-membered ring formed by the connectivity between FeO4N2 octahedra, pseudo-pyramidal HPO3 units. 2,2�-Bipyridine and PO2-(OH)2 tetrahedra are grafted onto the Fe center and hang into the interchain spaces. This is the first observation, to our knowledge, of a one-dimensional edge-shared chain structure in iron phosphite/phosphate. The structure appears to have close similarity to an iron arsenate-oxalate, [C4N2H 12][Fe(OH)-(HAsO4)(C2O4)] ·H2O, and a cadmium phosphate, [Cd(2,2�-bpy)(H 2PO4)2. Magnetic investigations reveal that the iron is present in the +3 oxidation state and shows antiferromagnetic interactions with typical low-dimensional behavior. The magnetic interactions between the Fe3+ ions are modeled using classical uniform chain solution with a single coupling constant J, formulated by Fisher involving nearest and next-nearest neighbor exchange interactions, based on the S = 5/2 Heisenberg antiferromagentic chain.

Item Type: Article
DOI/Identification number: 10.1021/cm049064p
Additional information: Unmapped bibliographic data: LA - English [Field not mapped to EPrints] J2 - Chem. Mater. [Field not mapped to EPrints] AD - Framework Solids Laboratory, Solid State and Struct. Chem. Unit, Indian Institute of Science, Bangalore 560 012, India [Field not mapped to EPrints] AD - Theoretical Sciences Unit, Jawaharlal Nehru Ctr. Adv. Sci. Res., Jakkur P.O., Bangalore 560 064, India [Field not mapped to EPrints] AD - Davy-Faraday Research Laboratory, Royal Institution of Great Britain, 21 Albermarie Street, London W1S 4BS, United Kingdom [Field not mapped to EPrints] DB - Scopus [Field not mapped to EPrints]
Uncontrolled keywords: Antiferromagnetic materials, Cadmium compounds, Magnetic properties, Oxidation, Phosphates, Synthesis (chemical), Antiferromagentic interaction, Cadmium phosphate, Hydrothermal reactions, Magnetic interaction, Iron compounds, 2,2' bipyridine, arsenic acid, cadmium, iron, oxalic acid, phosphate, phosphite, phosphorus acid derivative, water, article, chemical structure, crystal structure, infrared spectroscopy, magnet, oxidation, synthesis, thermogravimetry, X ray powder diffraction
Subjects: Q Science > QC Physics > QC173.45 Condensed Matter
Q Science > QD Chemistry > QD478 Solid State Chemistry
Divisions: Faculties > Sciences > School of Physical Sciences > Functional Materials Group
Depositing User: Giles Tarver
Date Deposited: 21 Oct 2015 15:31 UTC
Last Modified: 29 May 2019 16:11 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/51119 (The current URI for this page, for reference purposes)
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