Design of Zr(IV) and Hf(IV) Co-Ordination Compounds - Precursors for MOCVD Synthesis of Protective Coatings

Design and creation of new materials with unusual, predictable or predeterminated properties become one of the most actual problems of modern applied chemistry. Main demands are discussed, which are made to chemical compounds used in CVD synthesis of functional materials. A division of volatile metal-containing precursors into main classes is given. On the basis of volatility and thermal stabiliti criteria elaborated at IGIC-NASU, we have designed, synthesized and characterized a series of new advanced precursors for Zr(IV) and Hf(IV). Their properties are compared to those of known species. A possibility of formation of requested properties and structure of final materials is shown.