On the blue complexes of ruthenium. Part II. The structure of fac-trichlorotriammineruthenium(III)

Abstract

The structure of [RuCl₃(NH₃)₃] prepared from the blue chloro-ammine complex of ruthenium is described. The crystals are orthorhombic, a = 9.933(3), b = 6.522(2), c = 5.475(2) Å, Z = 2, space group Pmn2₁. The structure analysis used 283 observed reflections, whose intensity was measured on a Picker FACS-1 diffractometer. The structure was refined (full-matrix) to R = 0.029. The crystal is composed of chains of fac-[RuCl₃(NH₃)₃], and is disordered, approximately 10% of the chains being reversed in direction and displaced one-half in z. The Ru–ligand distances and angles are normal.