Dibariumplatinide: (Ba2+)2Pt2−⋅2 e−and Its Relation to the Alkaline‐Earth‐Metal Subnitrides

Karpov, Andrey; Wedig, Ulrich; Dinnebiér, Robert E.; Jansen, Martin

doi:10.1002/anie.200462055

Cited by 24 publications

(6 citation statements)

References 50 publications

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“…To put it in a very simple way, all the metals form cations but only few of them can form discrete anions (e.g., Au − , Pt 2− ) or anionic “Zintl-type” clusters (e.g., Pb 9 4– , Bi 4 2– , etc. ). − Furthermore, these metal anions or anionic clusters are extremely sensitive to oxygen and humidity. Consequently, they are not detected under ambient conditions.…”

Section: Cathodic Corrosion Processesmentioning

confidence: 99%

Cathodic Corrosion of Metal Electrodes—How to Prevent It in Electroorganic Synthesis

et al. 2021

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The critical aspects of the corrosion of metal electrodes in cathodic reductions are covered. We discuss the involved mechanisms including alloying with alkali metals, cathodic etching in aqueous and aprotic media, and formation of metal hydrides and organometallics. Successful approaches that have been implemented to suppress cathodic corrosion are reviewed. We present several examples from electroorganic synthesis where the clever use of alloys instead of soft neat heavy metals and the application of protective cationic additives have allowed to successfully exploit these materials as cathodes. Because of the high overpotential for the hydrogen evolution reaction, such cathodes can contribute toward more sustainable green synthetic processes. The reported strategies expand the applications of organic electrosynthesis because a more negative regime is accessible within protic media and common metal poisons, e.g., sulfur-containing substrates, are compatible with these cathodes. The strongly diminished hydrogen evolution side reaction paves the way for more efficient reductive electroorganic conversions.

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Section: Cathodic Corrosion Processesmentioning

confidence: 99%

Cathodic Corrosion of Metal Electrodes—How to Prevent It in Electroorganic Synthesis

et al. 2021

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“…This situation is underpinned by the observation that only in combination with cesium, an ionic, transparent compound, Cs 2 Pt, formed. The two characterized barium platinides, BaPt and Ba 2 Pt,, feature metallic conductivity and show just partial charge separation because barium is more electronegative than cesium. Our research aims at uncovering the possibility for Cs 2 Pt to form double salts similar to CsAu (Cs 3 AuO≡CsAu⋅Cs 2 O).…”

Section: Figurementioning

confidence: 99%

Cesium Platinide Hydride 4Cs₂Pt⋅CsH: An Intermetallic Double Salt Featuring Metal Anions

Smetana

Mudring

2016

Angew Chem Int Ed

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With Cs Pt H a new representative of ionic compounds featuring metal anions can be added to this rare-membered family. Cs Pt H exhibits a complex crystal structure containing Cs cations, Pt and H anions. Being a red, transparent compound its band gap is in the visible range of the electromagnetic spectrum and the ionic type of bonding is confirmed by quantum chemical calculations. This cesium platinide hydride can formally be considered as a double salt of the "alloy" cesium-platinum, or better cesium platinide, Cs Pt, and the salt cesium hydride CsH according to Cs Pt H≡4 Cs Pt⋅CsH.

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“…Dies wird auch darin deutlich, dass nur in Kombination mit Caesium über ein ionisches, transparentes Cs 2 Pt berichtet wurde. Die beiden Bariumplatinide BaPt und Ba 2 Pt, zeigen metallische Leitfähigkeit und nur partielle Ladungstrennung, da Barium weniger elektropositiv als Caesium ist. Das Ziel unserer Untersuchungen ist die Herstellung von Verbindungen, in denen Cs 2 Pt ähnliche Doppelsalze wie CsAu (z.…”

Section: Figureunclassified

Caesiumplatinidhydrid, 4 Cs₂Pt⋅CsH: ein intermetallisches Doppelsalz mit Metall‐Anionen

Smetana

Mudring

2016

Angewandte Chemie

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Cs 9 Pt 4 Hist ein neuer Vertreter einer kleinen Gruppe von ionischen Verbindungen, die Metall-Anionen enthalten. Die komplexeKristallstruktur besteht aus Cs + -Kationen sowie Pt 2À -u nd H À -Anionen. Die Bandlücked er roten, transparenten Verbindung liegt im sichtbaren Bereichd es elektromagnetischen Spektrums.Q uantenchemischeR echnungen belegen den ionischen Charakter von Cs 9 Pt 4 H. Dieses Caesium-platinid-hydrid kann als Doppelsalz der "Legierung" Caesium-Platin oder besser des Caesiumplatinids Cs 2 Pt mit dem Salz Caesiumhydrid, CsH, gemäßC s 9 Pt 4 H 4Cs 2 Pt·CsH aufgefasst werden.

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Dibariumplatinide: (Ba²⁺)₂Pt²⁻⋅2 e⁻and Its Relation to the Alkaline‐Earth‐Metal Subnitrides

Cited by 24 publications

References 50 publications

Cathodic Corrosion of Metal Electrodes—How to Prevent It in Electroorganic Synthesis

Cathodic Corrosion of Metal Electrodes—How to Prevent It in Electroorganic Synthesis

Cesium Platinide Hydride 4Cs₂Pt⋅CsH: An Intermetallic Double Salt Featuring Metal Anions

Caesiumplatinidhydrid, 4 Cs₂Pt⋅CsH: ein intermetallisches Doppelsalz mit Metall‐Anionen

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Dibariumplatinide: (Ba2+)2Pt2−⋅2 e−and Its Relation to the Alkaline‐Earth‐Metal Subnitrides

Cited by 24 publications

References 50 publications

Cathodic Corrosion of Metal Electrodes—How to Prevent It in Electroorganic Synthesis

Cathodic Corrosion of Metal Electrodes—How to Prevent It in Electroorganic Synthesis

Cesium Platinide Hydride 4Cs2Pt⋅CsH: An Intermetallic Double Salt Featuring Metal Anions

Caesiumplatinidhydrid, 4 Cs2Pt⋅CsH: ein intermetallisches Doppelsalz mit Metall‐Anionen

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Product

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Dibariumplatinide: (Ba²⁺)₂Pt²⁻⋅2 e⁻and Its Relation to the Alkaline‐Earth‐Metal Subnitrides

Cesium Platinide Hydride 4Cs₂Pt⋅CsH: An Intermetallic Double Salt Featuring Metal Anions

Caesiumplatinidhydrid, 4 Cs₂Pt⋅CsH: ein intermetallisches Doppelsalz mit Metall‐Anionen