Formation of amidotetra-amminenitrosylruthenium(II) and nitropentaammineruthenium(II) from nitrosylpenta-ammineruthenium(II) and hydroxide ion

Abstract

In aqueous sodium hydroxide [Ru(NH₃)₅NO]³⁺ was converted to [RuNH₂(NH₃)₄NO]²⁺ and [Ru(NH₃)₅NO₂]⁺. [RuNH₂(NH₃)₄NO]X₂(X = Br or I) was isolated from solutions of [OH^–]= 0·5M and [Ru(NH₃)₅NO₂]X,H₂O (X = Cl, Br, or I) from solutions of [OH^–]= 5M. On setting aside or warming, [RuOH(NH₃)₄NO]X₂(X = Br or I) were obtained; in solutions of [OH^–]= 0·5–1·5M the product was contaminated with [Ru(NH₃)₅N₂]²⁺. The physical properties of [RuNH₂(NH₃)₄NO]X₂ and [Ru(NH₃)₅NO₂]X,H₂O are reported.