Oxidizing noble metals: Pure N2O5 can oxidize elemental gold and palladium. The complex nitrates obtained by these reactions, (NO)[Au(NO3)4], (NO)2[Pd(NO3)4], and also the first nitrate of tetravalent platinum, (NO)2[Pt(NO3)6] (see picture for the anion: Pt gray, N green, O blue), have the potential to act as precursors owing to their high thermolability. The thermal decomposition of (NO)[Au(NO3)4] was elucidated in detail by several methods.
Mit reinem N2O5 können die Edelmetalle Au und Pd problemlos oxidiert werden. Es bilden sich die komplexen Nitrate (NO)[Au(NO3)4] und (NO)2[Pd(NO3)4], die ebenso wie das erste bekannte Nitrat von PtIV, (NO)2[Pt(NO3)6], wegen ihrer thermischen Labilität mögliche Vorstufen für die Edelmetalle sind (das Bild zeigt [Pt(NO3)6]2−; grau Pt, grün N, blau O). Für (NO)[Au(NO3)4] konnte der thermische Abbau mithilfe mehrerer komplementärer Methoden aufgeklärt werden.
The oxidation of copper, zinc and nickel by N 2 O 5 led, respectively, to turquoise-coloured single crystals of (NO)Cu (NO 3 ) ion is coordinated by six oxygen atoms of monodentate nitrate groups in the form of a tetragonal distorted octahedron. The nitrate groups are connected to further copper
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