Linear, cyclic and polymeric phosphazenes

An assessment of the diversity of phosphazene chemistry is presented with an emphasis on recent developments and their significance. Fundamental properties of phosphazenes are examined such as structure, nomenclature and bonding, and the various synthetic procedures are catagorized. In addition, the more important reactivity patterns are detailed and analysed. The review compares all systems containing the phosphazene bond, and makes extensive reference to previous reviews on specific types of phosphazene.