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A Valence Bond Analysis of Olefin Polymerization Catalysts

A Valence Bond Analysis of Olefin Polymerization Catalysts. Timothy K. Firman and Tom Ziegler. p -Conjugated Ligands in d 0 Systems. X groups are isolobally analogous. Several good catalysts of this type are known. Resonance Structures. A localized bonding picture of these ligands

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A Valence Bond Analysis of Olefin Polymerization Catalysts

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  1. A Valence Bond Analysis of Olefin Polymerization Catalysts Timothy K. Firman and Tom Ziegler

  2. p-Conjugated Ligands in d0 Systems X groups are isolobally analogous Several good catalysts of this type are known

  3. Resonance Structures A localized bonding picture of these ligands requires multiple resonance structures, e.g.: Main group elements require an octet of electrons Bond order to metal is variable, which may facilitate bond breaking during olefin insertion

  4. Model Compounds X= CH2, SiH2, NH, PH, O, S

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