FeIII 48 -Containing 96-Tungsto-16-Phosphate: Synthesis, Structure, Magnetism and Electrochemistry

Joydeb Goura; Bassem S Bassil; Jasleen K Bindra; Iwona A Rutkowska; Pawel J Kulesza; Naresh S Dalal; Ulrich Kortz

doi:10.1002/chem.202002832

Fe^III ₄₈ -Containing 96-Tungsto-16-Phosphate: Synthesis, Structure, Magnetism and Electrochemistry

Chemistry. 2020 Dec 4;26(68):15821-15824. doi: 10.1002/chem.202002832. Epub 2020 Nov 3.

Authors

Joydeb Goura¹, Bassem S Bassil^{1

2}, Jasleen K Bindra³, Iwona A Rutkowska⁴, Pawel J Kulesza⁴, Naresh S Dalal³, Ulrich Kortz¹

Affiliations

¹ Jacobs University, Department of Life Sciences and Chemistry, Campus Ring 1, 28759, Bremen, Germany.
² Department of Chemistry, Faculty of Arts and Sciences, University of Balamand, P.O. BOX 100, Tripoli, Lebanon.
³ Department of Chemistry and Biochemistry, Florida State University, Tallahassee, FL, 32306, USA.
⁴ Department of Chemistry, University of Warsaw, Pasteura 1, 02-093, Warsaw, Poland.

Abstract

The 48-Fe^III -containing 96-tungsto-16-phosphate, [Fe^III ₄₈ (OH)₇₆ (H₂ O)₁₆ (HP₂ W₁₂ O₄₈ )₈ ]^36- (Fe₄₈ ), has been synthesized and structurally characterized. This polyanion comprises eight equivalent {Fe^III ₆ P₂ W₁₂ } units that are linked in an end-on fashion forming a macrocyclic assembly that contains more iron centers than any other polyoxometalate (POM) known to date. The novel Fe₄₈ was synthesized by a simple one-pot reaction of an {Fe₂₂ } coordination complex with the hexalacunary {P₂ W₁₂ } POM precursor in water. The title polyanion was characterized by single-crystal XRD, FTIR, TGA, magnetic and electrochemical studies.

Keywords: electrochemistry; iron; macrocycle; magnetism; polyoxometalates.

Abstract

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