Highly efficient ethylene polymerisation by scandium alkyls supported by neutral fac-3 coordinated N3 donor ligands

• Autores: Stuart R. Dubberley, Benjamin D. Ward, Sally C. Lawrence
• Localización: Chemical communications, ISSN 1359-7345, Nº. 23, 2003, págs. 2880-2889
• Idioma: inglés
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• Resumen

  • Reaction of [M(CH2SiMe3)3(THF)2](M = Sc or Y) with the neutral fac-3 N3 donor ligands (L) Me3[9]aneN3 or HC(Me2pz)3 gave the corresponding trialkyls [M(L)(CH2SiMe3)3]; activation of the scandium congeners with B(C6F5)3 in the presence of ethylene afforded highly active polymerisation catalysts (Me3[9]aneN3= 1,4,7-trimethyltriazacyclononane).