Structure and Properties of (C4N2H12)[Pt(NO3)6] Salt

Resumo

From a nitrate solution of platinum(IV) hydroxide, (C₄N₂H₁₂)[Pt(N03)6] salt containing a piperazinium cation is isolated. The salt structure is determined by X-ray crystallography. Crystallographic data are: a=15.589(1)Å, b= 12.919(1) Å, c = 9.889(9)Å, β = 08.625(4)°, space group C2/c, Z=4, ρ_calc⁼ 2.306 g/cm³. In the structure, [Pt(NO₃)₆]²⁻ anions having a shape of a trigonal antiprism are organized into a 3D network by the formation of hydrogen bonds with organic cations. For a series of salts containing [Pt(NO₃)₆]²⁻ and [Pt₂(ώ-OH)₂(NO₃)₈]²⁻ anionic platinum nitrato complexes a relationship between the structure and ¹⁹⁵Pt MAS NMR spectra is shown.