Single-Site Organochromium Catalysts for High Molecular Weight Polyolefins

Single-Site Organochromium Catalysts for High Molecular Weight Polyolefins 

Four prerequisites for a molecular chromium-based catalyst can be defined  

1) A spectator ligand that is able to bind well to a chromium center  

2) A chromium alkyl bond that may be formed from L CrX , (X = halogen) by addition of an alkylating agent (usually MAO)  

3) A vacant coordination site, that is, coordination number lower than 6 in the 

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I 7 Single-Site Organochromium Catalysts for High Molecular Weight Polyolefins Distal donor... 

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