| Abstract
| - The syntheses of ruthenium(II) and rhodium(III) model complexes of the putative active species in the iron(II)/MMAO polymerization system are reported. The cationic ruthenium methyl ethylene complex 3 is a stable, isolable compound, which does not produce polyethylene under a variety of conditions. Likewise, the analogous rhodium complex 12 shows no appreciable polymerization activity, despite its similarity to existing rhodium complexes which are active catalysts for olefin polymerization.
- The syntheses of ruthenium(II) and rhodium(III) model complexes of the putative activespecies in the iron(II)/MMAO polymerization system are reported. The cationic rutheniummethyl ethylene complex 3 is a stable, isolable compound, which does not producepolyethylene under a variety of conditions. Likewise, the analogous rhodium complex 12shows no appreciable polymerization activity, despite its similarity to existing rhodiumcomplexes which are active catalysts for olefin polymerization. X-ray crystal structures ofthe cationic ruthenium bis(ethylene) complex 7 and the five-coordinate rhodium bis(triflate)methyl complex 9 are also presented.
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