Talk:Ziegler-Natta catalyst

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[edit] Mechanism

why is the C in the middle bonded to two Hs at first and only one later?

I don't think it has two Hs at first. it wouldn't work with valence either —Preceding unsigned comment added by FelixP (talkcontribs)

You are right, there seem to be some mistakes in the picture. But I think there should be two (the activator is diethylaluminiumchloride, ethyl groups on aluminum), the binding to the metal center is an agostic bond (electrons of the bond between C and H are donated into empty metal centre bonds). --Dirk Beetstra T C 13:41, 2 August 2006 (UTC)

I am not so sure if there are mistakes here - anyway its a proposed mechanism. I suspect that the Ti-CR3-Al interactions are like those in the Al-CH3-Al interactions in trimethyl aluminium. BTW: we now have agostic complex started.--Smokefoot 22:08, 2 August 2006 (UTC)

[edit] Is this the "Ziegler Process"?

I am curious if this catalyst is what makes the "Ziegler Process"? Maury 16:31, 19 March 2007 (UTC)