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This book describes the synthesis and characterization of niobium-based metal complexes and their usefulness as catalysts for the polymerization of ethylene, norbornene, beta pinene and vinyl monomers. The polymerization of above described monomers was studied using niobium complexes based on N,N dialkylcarbamates, mixed chloro alkoxides, simple oxygen-containing ligands and the starting material for the preparation of such derivatives, i.e. NbCl5.Niobium N,N-dialkylcarbamates exhibited high activity for polymerization of ethylene when activated with TMA-depleted MAO and 1,2-dichloroethane as...

Electrochromics is a healthy blend of basic physics and chemistry, thin film science, device technology and market opportunities. Use of electrochromic (EC) materials as smart windows in an interactive architecture of buildings provide a better option for energy saving. Hence developments in electrochromics will remain a vital field for endeavors of various kinds in coming years. Molybdnum oxide (MoO3) shows pronounced electrochromism due to its interesting structural(provides conduits for intercalation/deintercalation) and electronic properties. It is a 4d transition metal oxide, which can...