Preparation, Ligand Exchange Reactions, and Structure of a Diene(aqua)ruthenium Complex [(cod)Ru(H₂O)₄](OTs)₂

Abstract

The trans effect in organometallic aqua complexes was confirmed in a structure for the first time for the dication 1 of the title compound. Here the metal–oxygen bonds trans to the double bonds of the cyclooctadiene ligands are lengthened significantly, and thus these aqua ligands are particularly labile as is evident in exchange reactions.