Crystal and molecular structure of penta-amminenitroruthenium(II) chloride hydrate

Abstract

The crystal and molecular structure of the title compound has been determined from diffractometer data. The metal ion is octahedrally co-ordinated by six nitrogen atoms, with Ru–NO₂ 1·906(5), Ru–NH₃(equatorial) 2·131(5) and 2·123(5), and Ru–NH₃(axial) 2·199(6)Å. The NO₂^– ligand [N–O 1·287(5)Å] is acting as a π-electron acceptor and shows a strong trans-effect. Crystals are orthorhombic, space group Ccm2₁, a= 19·805(5), b= 7·271(7), c= 7·011(3)Å, Z= 4. The structure was refined anisotropically by the block-diagonal approximation (57 parameters) to R 0·025 for 495 observed reflections.