[EN] BORON-BRIDGED 2-INDENYL METALLOCENE COMPLEXES FOR OLEFIN POLYMERIZATION [FR] COMPLEXES MÉTALLOCÈNES DE 2-INDÉNYLE À PONT DE BORE POUR LA POLYMÉRISATION D'OLÉFINES
[EN] BORON-BRIDGED 2-INDENYL METALLOCENE COMPLEXES FOR OLEFIN POLYMERIZATION [FR] COMPLEXES MÉTALLOCÈNES DE 2-INDÉNYLE À PONT DE BORE POUR LA POLYMÉRISATION D'OLÉFINES
The reversible thermal isomerization of the positional isomers of several substituted silyl indenes [C9H7SiR3; R3 (CH3)2C6H5, (CH3)2(OCH3), (CH3)2-(CH2Cl), CH3(C6H5)2, (C6H5)3] has been studied. Rate constants, equilibrium constants, and activation parameters for the forward and reverse reactions are reported. The equilibrium distribution of isomers, but not the activation parameters, is found to
几个取代的甲硅烷基茚满[C 9 H 7 SiR 3 ; [R 3 (CH 3)2 C ^ 6 ħ 5,(CH 3)2(OCH 3),(CH 3)2 - (CH 2 Cl)的,CH 3(C 6 H ^ 5)2,(C 6 H ^ 5)3]已被研究。报告了正向和反向反应的速率常数,平衡常数和活化参数。发现异构体的平衡分布而不是活化参数对硅上取代基的性质敏感。还报道了1-(三甲基锡烷基)茚的热行为。