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A new Fe$^{III}$ substituted arsenotungstate [Fe$^{III}$ $_{2}$2(As$^{III}$W$_{6}$O$_{23}$)$_{2}$(As$^{III}$O$_{3}$H)$_{2}$]$^{12-}$: Synthesis, structure, characterization and magnetic properties

Ibrahim, M.; Peng, Y.; Anson, C. E.

Abstract:
The iron(III)-containing arsenotungstate [Fe$^{III}$ $_{2}$2(As$^{III}$W$_{6}$O$_{23}$)$_{2}$(As$^{III}$O$_{3}$H)$_{2}$]$^{12-}$ (1) was prepared via a simple, one-pot reaction in aqueous basic medium. The compound was isolated as its sodium salt, and structurally-characterized by Single Crystal X-ray Diffraction (SCXRD), Powder X-ray Diffraction (PXRD), Fourier-Transform Infrared (FT-IR) spectroscopy, Thermogravimetric Analysis (TGA) and elemental analysis. Its magnetic properties are reported; the antiferromagnetic coupling between the two FeIII centers is unusually weak as a result of the bridging geometry imposed by the rigid arsenotungstate metalloligands.

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Verlagsausgabe §
DOI: 10.5445/IR/1000126006
Veröffentlicht am 16.11.2020
Originalveröffentlichung
DOI: 10.3390/magnetochemistry6040054
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Anorganische Chemie (AOC)
Institut für Nanotechnologie (INT)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2020
Sprache Englisch
Identifikator ISSN: 2226-471X, 2312-7481
KITopen-ID: 1000126006
Erschienen in Magnetochemistry
Band 6
Heft 4
Seiten Art.-Nr.: 54
Schlagwörter polyoxometalates; arsenotungstate; antiferromagnetism; iron; lacunary POMs
Nachgewiesen in Scopus
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