The adduct of tin(IV) chloride with dinitrogen tetroxide

Abstract

Experimental conditions are described which enable the adduct SnCl₄,N₂O₄ to be obtained in precisely 1:1 stoicheiometry. The unusual stability is explained by its formulation as the ionic compound NO⁺[SnCl₄(NO₃)]^–. The nitrate ligand is probably bidentate, so the tin atom has 6-co-ordination. This formulation is supported by the infrared spectrum, and by the hydrolysis products in water and sodium hydroxide solution. On thermal decomposition at 170°, a sublimate of composition SnCl₄,2NOCl is obtained.