FeIII48‐Containing 96‐Tungsto‐16‐Phosphate: Synthesis, Structure, Magnetism and Electrochemistry. Issue 68 (3rd November 2020) - Goura, Joydeb
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. Abstract : A very large, discrete 96‐tungsto‐16‐phosphate containing 48 Fe III centers, [Fe III 48 (OH)76 (H2 O)16 (HP2 W12 O48 )8 ] 36− (Fe48 ), has been synthesized and structurally characterized. Polyanion Fe48 comprises eight equivalent {Fe6 P2 W12 } units which are linked end‐on to form a macrocyclic assembly containing more iron centers than any other polyoxometalate known to date (see figure).