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The study of organolanthanide compounds consists in a most interesting area in organometalic chemistry, mainly because their potential use as precursors and catalysts in hydrogenation, hydroformilation, carbonilation, oxidation and mainly olefin polymerization reactions. This interest has taken many research groups to synthesize compounds using the cyclopentadienil anion and its derivatives coordinated to lanthanides (m) ions. The present work aims to contribute to the application of these organolanthanide compounds as catalysts in olefin polymerization reactions. The work involves a step of syntheses and characterization of two kinds of organolanthanide compounds Ln(MS)2Cp* and Ln(MShCp*PzA (Ln = Sm, Tb and Yb) and a step of catalytic activity study of these compounds in ethylene, propylene and styrene polymerization reactions, usmg methylaluminoxane as co-catalyst and characterization of the obtained polymers. Synthesized compounds have showed catalytic activity only to styrene polymerization., Independent of the organolanthanide compound used as catalyst, the produced polymer was characterized as mainly atatic polystyrene indicating that polymerization is not stereo specific and presented molar mass in the order of 10 g/mol.

Síntese, caracterização e atividade catalítica de compostos organolantanídeos contendo os ânions metanossulfonato e pentametilciclopentadienil e o ligante pirazinamida