Aqueous solution chemistry of molybdenum tungsten and ruthenium

Abstract

First paragraph. Abstract is available in full-text thesis file. Although elements of the second and third row transition metals do form simple monomeric aqua ions …, a more common feature of their aqueous chemistry is the formation of oligomeric species with metal-metal bonding and oxo, hydroxo and/or halo bridges. These are often called aqua ions but by strict definition they are oxo species. The availability of such aqua ions plays an important role in the chemistry of the corresponding element as they are viewed as being the simplest of complexes and can be frequently more labile than other complexes (e.g. halogeno-complexes) thus opening synthetic routes to compounds including organometallic ones not available otherwise.