Transition Metal Compound, Ligand System, Catalyst System and Process for Preparing Polyolefins
The present invention relates to organometallic transition metal compounds of the formula (I) Z1AnZ2MXm (I) where Z1 is a coordinating group which comprises a six-pi-electron central group which coordinates directly to M, A is a divalent bridge between the groups Z1 and Z2, Z2 is a coordinating grou...
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Main Authors | , , , , , |
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Format | Patent |
Language | English |
Published |
08.11.2007
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Subjects | |
Online Access | Get full text |
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Summary: | The present invention relates to organometallic transition metal compounds of the formula (I) Z1AnZ2MXm (I) where Z1 is a coordinating group which comprises a six-pi-electron central group which coordinates directly to M, A is a divalent bridge between the groups Z1 and Z2, Z2 is a coordinating group having the same meaning as Z1 or is a group comprising an open pentadienyl, a cyclopentadienyl-containing group or a heterocyclic, 5- or 6-membered group containing six pi electrons, n=zero or 1, M is an element of group 3, 4, 5 or 6 of the Periodic Table of the Elements, the radicals X are identical or different and are each an organic or inorganic radical, m is 0, 1 or 2, and at least one of the three molecule fragments Z1, Z2 and A bears a monovalent organic radical. |
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Bibliography: | Application Number: US20050597346 |