Reactivity of a (Benzene)Ruthenium(II) Cation on a Di-lacunary γ-Keggin-Type Silicotungstate and Synthesis of a Mono-(Benzene)Ruthenium(II)-Attached γ-Keggin-Type Silicotungstate

Masaya Kikuchi, Hiromi Ota, Xavier López, Toshimi Nakaya, Nao Tsunoji, Tsuneji Sano, Masahiro Sadakane

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Abstract

Reaction of a (benzene)Ru2+ complex, [Ru(C6H6)Cl2]2, with a di-lacunary γ-Keggin-type silicodecatungstate, K8[γ-SiW10O36], at a (C6H6)Ru2+/[γ-SiW10O36]8- ratio of 1 produces [γ-SiW10O36Ru(C6H6)]6-. The cesium salt was characterized using experimental and theoretical methods; one (C6H6)Ru2+ moiety is attached through three bridging oxygen atoms of the non-lacunary site, and the anion is stable in aqueous solution. 1H NMR spectroscopy and high-resolution electrospray ionization mass spectrometry measurements of the reaction mixture with different (C6H6)Ru2+/[γ-SiW10O36]8- ratios indicate that the (C6H6)Ru2+ complex first reacts with the three bridging oxygen atoms to form [γ-SiW10O36Ru(C6H6)]6-, and then react on the terminal oxygen atoms of the lacunary site to form a [γ-SiW10O36Ru(C6H6)]6- complex, which was reported by the Kortz and Nadjo group.

Original languageEnglish
JournalEuropean Journal of Inorganic Chemistry
DOIs
Publication statusAccepted/In press - Jan 1 2018

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Keywords

  • Isomers
  • Polyoxometalates
  • Ruthenium
  • γ-Keggin silicotungstates

ASJC Scopus subject areas

  • Inorganic Chemistry

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