The new compounds [M(η-C5R5){η-R′NC(Ph)NR′}Cl2][where R′= Me3,Si (TMS), and R = H, M = Ti,Zr, Hf or R = Me, M = Ti or Zr], [Zr(η-C5R5){(η-R′NC(Ph)NR′}(CH2Ph)Cl](R = H, Me), and [Zr(η-C5R5){η-R′NC(Ph)NR}(CH2Ph)2](R = H, Me) are described; the compound [Zr(η-C5H5){η-R′C(Ph)R′}Cl2] acts as a cocatalyst for the polymerisation of ethylene and propene.
A. N. Chernega, R. Gómez and M. L. H. Green, J. Chem. Soc., Chem. Commun., 1993, 1415 DOI: 10.1039/C39930001415
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