To learn the structure and nature of bonding in metal carbonyls and nitrosyls, vitality of metal ions in biosystems and basics of organometallic chemistry.
Definition, nomenclature and classification of organometallic compounds; general characteristics, preparation, properties, bonding and applications of alkyls and aryls of Li, Al, Hg, Sn and Ti; metal ethylenic complex – Zeise’s salt (brief idea). Hydrogenation and polymerization of alkene of transition metal complex (an elementary concept).
Introduction to π acceptor ligands; definition, classification, general methods of preparation, properties, structure and nature of bonding in metal carbonyls (mononuclear carbonyls only).
Metal nitrosyls: preparation, structure and nature of bonding.
The biological role of metal ions- Na, K (Sodium potassium pump), Ca, Mg (Chlorophyll structure and function), Zn (Carboxypeptidase and Carbonic anhydrase- structure and function), Metalloporphyrins with special reference to haemoglobin and myoglobin.
Types, comparison with organic polymers, synthesis, structural aspects and applications of silicones, phosphazenes, and tetrasulphurtetranitride.
Classification, condensation and addition polymerizations – mechanism of free radical, cationic, anionic addition polymerization; Ziegler-Natta catalyzed reactions, stereochemistry and kinetics; vinyl polymers (PVC, poly vinyl acetate, polystyrene), teflon, urea-formaldehyde resin and phenol-formaldehyde resins, polyurethanes; synthetic fibres– nylon-66, nylon-6, polyester, polyacrylicfibres; plasticizers; natural and synthetic rubber, vulcanization.