The new bis-diethylamide bis-isopropoxy hafnium complex [Hf(NEt2)2(OCH(CH3)2)2] as well as the intermediate solid-state complex {[Hf(NEt2)2Cl2.DME] (DME=1,2-dimethoxyethane)} have been synthetized, isolated and characterized by NMR spectroscopy. The dichloride complex was also characterized by X-ray diffraction showing the metal to be hexa-coordinated with a distorted octahedral geometry. Catalytic tests for the polymerization of ethylene have been carried out using this intermediate with [(NHMe2Ph)B(C6F5)4] as cocatalyst.
Synthesis and physico-chemical characterization of [Hf(NEt2)2Cl2(DME)] and its use as catalyst for ethylene polymerization
Giovanni Carta;Franco Benetollo;Pierino Zanella;
2007
Abstract
The new bis-diethylamide bis-isopropoxy hafnium complex [Hf(NEt2)2(OCH(CH3)2)2] as well as the intermediate solid-state complex {[Hf(NEt2)2Cl2.DME] (DME=1,2-dimethoxyethane)} have been synthetized, isolated and characterized by NMR spectroscopy. The dichloride complex was also characterized by X-ray diffraction showing the metal to be hexa-coordinated with a distorted octahedral geometry. Catalytic tests for the polymerization of ethylene have been carried out using this intermediate with [(NHMe2Ph)B(C6F5)4] as cocatalyst.File in questo prodotto:
Non ci sono file associati a questo prodotto.
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
