Facile fabrication of ruthenium(IV) oxide nanostructures by thermal decomposition of two new organoruthenium(II) complexes

Abstract

Two new monofunctional ruthenium(II) arene complexes of the type [( η 6 -arene)Ru(ethylenediamine)(X)] n + where arene is substituted benzene ( p -cymene), and X are halide (Br and Cl), [( η 6 - p -cymene)Ru(en)Br]Br ( 1 ) and [( η 6 - p -cymene)Ru(en)Cl]PF 6 ( 2 ), have been investigated. The X-ray crystal structures of both organoruthenium(II) complexes are reported. Both two complexes have “piano stool” geometries with η 6 coordination of the arene ligand. RuO 2 nanoparticles were simply synthesized by solid-state transformation of compounds 1 and 2 at 400 °C under air atmosphere. The results show that the size and morphology of the RuO 2 nanoparticles are dependent upon the starting organometallic ruthenium(II) complexes. Two new ruthenium(II) arene complexes of the type [( η 6 -arene)Ru(ethylenediamine)(X)] n + where arene is substituted benzene ( p -cymene), and X are halide (Br and Cl), [( η 6 - p -cymene)Ru(en)Br]Br ( 1 ) and [( η 6 - p -cymene)Ru(en)Cl]PF 6 ( 2 ), have been investigated. The X-ray crystal structures of both organoruthenium(II) complexes are reported. RuO 2 nanoparticles were simply synthesized by solid-state transformation of compounds 1 and 2 at 400 °C under air atmosphere. • Two new monofunctional ruthenium(II) arene complexes have been investigated. • The X-ray crystal structures of both organoruthenium(II) complexes are reported. • Both two complexes have “piano stool” geometries. • Calcination of the compounds 1 and 2 at 400 °C yields RuO 2 nanoparticles.