A new synthetic route towards a Ru(III) substituted heteropolytungstate anion

Besson, Claire; Chen, Suwen; Villanneau, Richard; Izzet, Guillaume; Proust, Anna

doi:10.1016/j.inoche.2009.08.016

Cited by 24 publications

(24 citation statements)

References 19 publications

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“…[ is S-bonded to ruthenium, as confirmed by 31 P NMR [24] and EPR spectroscopy [32] (for X = P), as well as single-crystal Xray diffraction (for X = Si; Figure 6 a) [33] and by DFT calculations. [34] A detailed electrochemical investigation [24] [*] We note that for L-structure complexes involving large secondary heteroatoms (lanthanides and actinides) the number of free coordination sites increases up to four.…”

mentioning

confidence: 69%

“…[56] Salts of these complexes were characterized by elemental analysis, 31 confirmed by analytical ultracentrifugation and X-ray structure analysis of the potassium salt (Figure 6 d) 5À and dibenzyl under prolonged (5 h) photolysis at ambient temperature. [56] No benzylrhodium species were detected as products in the photolysis, but rhodium-carbon bond formation occurred in hydrothermal reactions of aqueous solutions of lacunary heteropolytungstates with RhCl 3 in 0.…”

Section: Rhodiummentioning

confidence: 86%

“…[28,58,59,[62][63][64][65][66][67][68][69][70] (16-2n)À polyanion can exist as anti and syn isomers with respect to the relative orientation of the POM ligands ( Figure 11). 31 P and 183 W NMR spectroscopy studies showed all three POMs to be stable in aqueous and organic media with no apparent facile syn-anti isomerization.…”

Section: Rutheniummentioning

confidence: 99%

“…[56] No benzylrhodium species were detected as products in the photolysis, but rhodium-carbon bond formation occurred in hydrothermal reactions of aqueous solutions of lacunary heteropolytungstates with RhCl 3 in 0. 31 P and 183 W NMR spectra of these paramagnetic species are ambiguous or of insufficient quality for reliable structural characterization. Nevertheless, whatever the true composition of these iridiumcontaining materials, subsequent work has shown that they display electrocatalytic activity for nitrite reduction [60] and catalytic activity for epoxidation of allylic alcohols by H 2 O 2 in biphasic systems.…”

Section: Rhodiummentioning

confidence: 99%

“…[61] The product was thoroughly characterized by crystal-structure determination, 31 P and 183 W NMR spectroscopy, ESI-MS, and cyclic voltammetry.…”

Section: Rhodiummentioning

confidence: 99%

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Noble Metals in Polyoxometalates

2012

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Polyoxometalates containing noble metal ions, such as ruthenium, osmium, rhodium, palladium, platinum, silver and gold, are a structurally diverse class of compounds. They include both classical heteropolyanions (vanadates, molybdates, tungstates) in which noble metals are present as heteroatoms, as well as the recently discovered class of polyoxometalates with noble metal "addenda" atoms. The focus of this Review is on complexes that should, in principle, exist as discrete molecular species in solution, and which are therefore of interest for their reactivity, their future synthetic utility and potential applications, for example, in catalysis or nanoscience.

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mentioning

confidence: 69%

Section: Rhodiummentioning

confidence: 86%

Section: Rutheniummentioning

confidence: 99%

Section: Rhodiummentioning

confidence: 99%

“…[61] The product was thoroughly characterized by crystal-structure determination, 31 P and 183 W NMR spectroscopy, ESI-MS, and cyclic voltammetry.…”

Section: Rhodiummentioning

confidence: 99%

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Noble Metals in Polyoxometalates

2012

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Edelmetalle in Polyoxometallaten

2012

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Polyoxometallate, die Edelmetallionen wie Ruthenium, Osmium, Rhodium, Palladium, Platin, Silber und Gold enthalten, bilden eine strukturell reichhaltige Klasse von Verbindungen. Hierzu gehören sowohl klassische Heteropolyanionen (Vanadate, Molybdate, Wolframate), in denen die Edelmetalle als Heteroatome vorliegen, als auch die erst kürzlich entdeckte Klasse der Polyoxometallate mit Edelmetallen als “Addenda”‐Atomen. Der Schwerpunkt dieses Aufsatzes liegt auf Komplexen, die in Lösung als diskrete Moleküle vorliegen und somit von Interesse für zukünftige Synthesen und Entwicklungen in der Reaktivität sind und potenzielle Anwendungen haben, z. B. in der Katalyse und den Nanowissenschaften.

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Stabilization of High‐Valence Ruthenium with Silicotungstate Ligands: Preparation, Structural Characterization, and Redox Studies of Ruthenium(III)‐Substituted α‐Keggin‐Type Silicotungstates with Pyridine Ligands, [SiW₁₁O₃₉Ru^III(Py)]⁵⁻

Sadakane

Moroi

Iimuro

et al. 2012

Chemistry An Asian Journal

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Ruthenium(III)-substituted α-Keggin-type silicotungstates with pyridine-based ligands, [SiW(11)O(39)Ru(III)(Py)](5-), (Py: pyridine (1), 4-pyridine-carboxylic acid (2), 4,4'-bipyridine (3), 4-pyridine-acetamide (4), and 4-pyridine-methanol (5)) were prepared by reacting [SiW(11)O(39)Ru(III)(H(2)O)](5-) with the pyridine derivatives in water at 80 °C and then isolated as their hydrated cesium salts. These compounds were characterized using cyclic voltammetry (CV), UV/Vis, IR, and (1)H NMR spectroscopy, elemental analysis, titration, and X-ray absorption near-edge structure (XANES) analysis (Ru K-edge and L(3)-edge). Single-crystal X-ray analysis of compounds 2, 3, and 4 revealed that Ru(III) was incorporated in the α-Keggin framework and was coordinated by pyridine derivatives through a Ru-N bond. In the solid state, compounds 2 and 3 formed a dimer through π-π interaction of the pyridine moieties, whereas they existed as monomers in solution. CV indicated that the incorporated Ru(III)-Py was reversibly oxidized into the Ru(IV)-Py derivative and reduced into the Ru(II)-Py derivative.

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A new synthetic route towards a Ru(III) substituted heteropolytungstate anion

Cited by 24 publications

References 19 publications

Noble Metals in Polyoxometalates

Noble Metals in Polyoxometalates

Edelmetalle in Polyoxometallaten

Stabilization of High‐Valence Ruthenium with Silicotungstate Ligands: Preparation, Structural Characterization, and Redox Studies of Ruthenium(III)‐Substituted α‐Keggin‐Type Silicotungstates with Pyridine Ligands, [SiW₁₁O₃₉Ru^III(Py)]⁵⁻

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A new synthetic route towards a Ru(III) substituted heteropolytungstate anion

Cited by 24 publications

References 19 publications

Noble Metals in Polyoxometalates

Noble Metals in Polyoxometalates

Edelmetalle in Polyoxometallaten

Stabilization of High‐Valence Ruthenium with Silicotungstate Ligands: Preparation, Structural Characterization, and Redox Studies of Ruthenium(III)‐Substituted α‐Keggin‐Type Silicotungstates with Pyridine Ligands, [SiW11O39RuIII(Py)]5−

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Stabilization of High‐Valence Ruthenium with Silicotungstate Ligands: Preparation, Structural Characterization, and Redox Studies of Ruthenium(III)‐Substituted α‐Keggin‐Type Silicotungstates with Pyridine Ligands, [SiW₁₁O₃₉Ru^III(Py)]⁵⁻